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Running a radio from a large rechargeable cell or battery
Hi, folks - I would like to try running my Icom R-75 at home from a 12
- 13.8 volt cell or battery. The requirements would be that the cell would be able to recharge from 115v AC during the radio's off time, and that while the radio is turned on, the battery would be electrically disconnected from the wall AC. It does not matter to me whether this connect / disconnect is manual or automatic. This device might also run an MFJ Noise Canceller unit, which uses lower voltage (I would need to provide a step-down for this device, or a separate battery). I would like the battery to be nice and big, something that would provide an easy constant 36 watts (12v at about 3 amp max) for several hours straight without strain. It would be nice if this device did not develop a memory (no NiCads, please). It would be nice if it were not an ugly thang with potential leaky chemicals like a car battery. Can anyone recommend such a set-up, and/or some specific manufacturers and model nos. that might fill the bill? Thanks so much ~ Bruce Jensen |
Running a radio from a large rechargeable cell or battery
I have a big very heavy Sears Marine deep cycle 12 volt battery (like
the kind used in motorhomes and such like) I bought at the local Sears store about six years ago.Those kinds of batteries (deep cycle batteries) shouldn't be drawn down to more than about half capacity,or so I once read in an article.With proper care and maintnance,deep cycle marine grade batteries should last ten to twelve years or more. cuhulin |
Running a radio from a large rechargeable cell or battery
There are plastic cases available for wet cell "car type" batteries that
help prevent spilling the battery acid in case the battery tips over.You could set the battery in your garage (don't set the battery on a concrete floor) and run two long wires from the battery to inside your house.A good automatic battery charger and amp meter will help to keep the battery in good condition.Occasionally,use a piece of an old rag and a cup of warm water with baking soda in the water and wipe the battery. cuhulin |
Running a radio from a large rechargeable cell or battery
Interstate brand name batteries are over rated and over priced.Sears Die
Hard batteries are just as good and lower price. cuhulin |
Running a radio from a large rechargeable cell or battery
BpnJ,
You may wish to contact : Gruber Power Services GPS = http://www.gruberpower.com/ eBAY = http://stores.ebay.com/Gruber-Power-Services POC = http://www.gruberpower.com/Contact/Call_Customers.htm hth ~ RHF |
Running a radio from a large rechargeable cell or battery
I suggest getting a gell cell to avoid battery acid spills or fumes. I
only use mine when in the field, so I don't have a set up as you suggest. I charge my battery from a bench supply using 13.8v as a float voltage. Depending where you live, you may find used gell cells that are part of a data center backup system. These batteries live indoors and spend most of their life on float (OK for SLA batteries) and maybe once in a while provide backup. Alarms use similar style battiers, but not very high capacity. The Yuasa NP7-12 is a real common back-up battery. It is only 7 amp hours, but what you might do is get two of them, keeping one on the charger while you use the other. Typically in alarms or data backup, the batteries are replaced on a schedule rather than waiting for a failure, so there are plenty of free or low cost batteries available. If you don't want to use a bench supply, West Marine sells all sorts of chargers, though a bit pricey. bpnjensen wrote: Hi, folks - I would like to try running my Icom R-75 at home from a 12 - 13.8 volt cell or battery. The requirements would be that the cell would be able to recharge from 115v AC during the radio's off time, and that while the radio is turned on, the battery would be electrically disconnected from the wall AC. It does not matter to me whether this connect / disconnect is manual or automatic. This device might also run an MFJ Noise Canceller unit, which uses lower voltage (I would need to provide a step-down for this device, or a separate battery). I would like the battery to be nice and big, something that would provide an easy constant 36 watts (12v at about 3 amp max) for several hours straight without strain. It would be nice if this device did not develop a memory (no NiCads, please). It would be nice if it were not an ugly thang with potential leaky chemicals like a car battery. Can anyone recommend such a set-up, and/or some specific manufacturers and model nos. that might fill the bill? Thanks so much ~ Bruce Jensen |
Running a radio from a large rechargeable cell or battery
Cuhulin,
We should all Die Hard with a Smile on our face :o) omg - the devil made me do it ~ RHF |
Running a radio from a large rechargeable cell or battery
I don't wait till my car is stuck in the dead of winter with a dead
battery to replace it. I have 4 daughters that drive, so you can understand my concerns. I usually have a couple of car batteries kicking around here. I'm actually getting ready to go off the grid with my R75 and 2m rigs as well. My 2m rig actually displays the battery voltage for a few seconds when power up. I don't think I need to be worried about creating hydrogen from charging a battery in the basement. Do I? It will only be a trickle charge. So there ya go. Go look at your loved one's car battery and if it looks like it might be a little iffy why just yank it out and drag it into the shack. Tell the old lady your concerned that she might get stuck this winter and have her fork over the cash for a new battery. Everybody is happy. 73 Bob |
Running a radio from a large rechargeable cell or battery
Most regular car batteries are good for about four years (especially in
cold weather climates) before they should be replaced with new batteries,so if the battery in your vehicle is about four years old and still in good condition and if you live in a cold weather climate,why not use the old battery for your radio(s) and buy a new battery for your vehicle? I don't know for sure,but some computer back up battery units/systems (I use an APC model 1000 computer backup unit for my computer www.apc.com) just might have a connection on them for 12 volts D.C.current,it's worth cheking out.You could rig a couple of wires directly (with a proper fuse,of course) to the battery in your battery computer backup system.I think. cuhulin |
Running a radio from a large rechargeable cell or battery
M...sushi.com wrote:
I suggest getting a gell cell to avoid battery acid spills or fumes. I only use mine when in the field, so I don't have a set up as you suggest. I charge my battery from a bench supply using 13.8v as a float voltage. Thanks, also to RHF and Cuhulin. I just took a look at these gel cells on a couple of websites, incluidng the one recommended by RHF and some others. This, of course, raises more questions :-) How big a charger must one have? Must the current available on the charger be some minimum fraction of the amp-hours of the battery, or can one use a smaller charger and just leave it on longer? Also, is the charge time a simple proportion between the charger current and the battery amp-hour value? i.e., to recharge an 18 amp-hour battery with a 10-amp charger, the charge time is 1.8 hours - ? Is it OK to drain a gel cell until it loses almost all of its charge? Or is there some minimum level at which one must stop (25%, 50% or etc)? Finally, once the gel cell battery is fully charged, how does one know, and will it hurt if the charger is kept on without checking? Does a charger have a device to shut off when full charge is reached? Thanks, Bruce |
Running a radio from a large rechargeable cell or battery
Look at some of those battery powered toy cars and battery powered two
wheelers in the stores.The kind meant for kids to ride around the yard on.Check the information on the batteries and the battery chargers for those batteries.Sometimes,thrift stores and yard sales have second hand battery powered kids cars and battery powered two wheelers.I see them every once in a while at the Goodwill store near me.I have no idea how much those gel cell batteries cost or how long gel cell batteries are suppose to last,I have never used them before. cuhulin |
Running a radio from a large rechargeable cell or battery
www.devilfinder.com Information about Gel Cell Batteries and Gel
Cell Battery Chargers Some information there at that good old devilfinder.com search. cuhulin |
Running a radio from a large rechargeable cell or battery
Look at some of those battery powered toy cars and battery powered two
wheelers in the stores.The kind meant for kids to ride around the yard on.Check the information on the batteries and the battery chargers for those batteries.Sometimes,thrift stores and yard sales have second hand battery powered kids cars and battery powered two wheelers.I see them every once in a while at the Goodwill store near me.I have no idea how much those gel cell batteries cost or how long gel cell batteries are suppose to last,I have never used them before. cuhulin The sites I checked seemed to have quality gel cells in about the right size (I think) for my application - 12v, 18 or higher amp-hours - starting at around $20 to $40, not bad at all. Chargers are all over the place, from a 1-amp charger at 6 to 20 bucks up to 100-amp chargers (overkill, I'd bet) for silly sums of money. My kid has a toy motorcycle powered by a gel cell, now that I think of it - requires about 2 hours charge for 1/2 hour use before it gets too weak to be useful. The charger is probably near a trickle compared with the optimal output of the battery, but I will check - thank for the idea! Bruce Jensen |
Running a radio from a large rechargeable cell or battery
I use small bench supplies because I have a lot of small bench
supplies. You set it up for 13.8VDC, and the current limit cuts in if the battery wants more. Gell cells don't like excessive voltage, so I avoid the cheaper car battery chargers. My bench suplies range from 1A to 8A, no where near as heavy duty as a car battery charger. You could buy a "cyclic" charger if you want faster charging. For instance, for the np7-12, you could hit it with 14.5V to 15V at 1.75Amps to charge it. I personally don't like doing this, and rather just set up the float voltage (13.5 to 13.8V). I only mention the np7-12 because I have one next to me. The one I use in the field is much larger, and unfortunately not handy. [I put it in a West Marine battery carrier, so it's all locked up so to speak.] Note that you can float a SLA (sealed lead acid) at the float voltage forever. That is how you use the battery in backup mode. The charge time at the float voltage won't be linear. As the battery charges, it draws less current. If you want to quickly charge the SLA, you can buy a cyclic charger. As I said, I use my infrequently, so the bench supply works for me. http://www.xantrex.com/ has chargers meant for SLA, but I still suggest getting two batteries and just floating one on a good bench charger (HP, Labda, Sorensonmetc.] The only problem with a bench supply is some jerk could crank up the voltage. You can drain the SLA down to 10.5V (i.e. 1.75V/cell). In the field, I use a cheap Harbor Freight DVM. No use getting a good meter all scratched up. I don't like the idea of using car batteries for this application. The outgassing can ruin electronics or your lungs. SLA batteries are safe enough to install inside electronics gear. I've use noise measuring gear that would disconnect from the mains when making a measurement, using an internal SLA to power the electronics. bpnjensen wrote: M...sushi.com wrote: I suggest getting a gell cell to avoid battery acid spills or fumes. I only use mine when in the field, so I don't have a set up as you suggest. I charge my battery from a bench supply using 13.8v as a float voltage. Thanks, also to RHF and Cuhulin. I just took a look at these gel cells on a couple of websites, incluidng the one recommended by RHF and some others. This, of course, raises more questions :-) How big a charger must one have? Must the current available on the charger be some minimum fraction of the amp-hours of the battery, or can one use a smaller charger and just leave it on longer? Also, is the charge time a simple proportion between the charger current and the battery amp-hour value? i.e., to recharge an 18 amp-hour battery with a 10-amp charger, the charge time is 1.8 hours - ? Is it OK to drain a gel cell until it loses almost all of its charge? Or is there some minimum level at which one must stop (25%, 50% or etc)? Finally, once the gel cell battery is fully charged, how does one know, and will it hurt if the charger is kept on without checking? Does a charger have a device to shut off when full charge is reached? Thanks, Bruce |
Running a radio from a large rechargeable cell or battery
Wet cell car type batteries.Back in the 1950's or 1960's,I read in one
of my Popular Science or Popular Mechanics magazines if you will drain the acid out of the battery into a porcelain or glass container and flush the crud out of the battery with a water hose (no nozzle on the water hose and the water turned on at low pressure) and then pour the acid through a piece of cloth (to filter out crud in the acid) and pour the acid back into the battery,that will extend the life of the battery.Pure Sulphuric battery acid has a chemical burn equal to 735 degrees temperture,same as a red hot poker at 735 degrees.I used to work at a factory that manufactured auto/truck/lawnmower batteries and believe you me,,, I do know about that pure sulphuric battery acid! One drop of it on your hide will make you jump ten feet high! The acid in the car type batteries is very,very watered down. cuhulin |
Running a radio from a large rechargeable cell or battery
Freight on these SLA's can be an issue. Sometimes it pays just to buy
the battery in a store. A bit OT, but depending on where you use the battery, it sometimes helps to install rubber feet on the bottom IF you will have the battery sitting on cold cement. I do this for outdoor applications. bpnjensen wrote: Look at some of those battery powered toy cars and battery powered two wheelers in the stores.The kind meant for kids to ride around the yard on.Check the information on the batteries and the battery chargers for those batteries.Sometimes,thrift stores and yard sales have second hand battery powered kids cars and battery powered two wheelers.I see them every once in a while at the Goodwill store near me.I have no idea how much those gel cell batteries cost or how long gel cell batteries are suppose to last,I have never used them before. cuhulin The sites I checked seemed to have quality gel cells in about the right size (I think) for my application - 12v, 18 or higher amp-hours - starting at around $20 to $40, not bad at all. Chargers are all over the place, from a 1-amp charger at 6 to 20 bucks up to 100-amp chargers (overkill, I'd bet) for silly sums of money. My kid has a toy motorcycle powered by a gel cell, now that I think of it - requires about 2 hours charge for 1/2 hour use before it gets too weak to be useful. The charger is probably near a trickle compared with the optimal output of the battery, but I will check - thank for the idea! Bruce Jensen |
Running a radio from a large rechargeable cell or battery
Freight on these SLA's can be an issue. Sometimes it pays just to buy
the battery in a store. Good tip. A bit OT, but depending on where you use the battery, it sometimes helps to install rubber feet on the bottom IF you will have the battery sitting on cold cement. I do this for outdoor applications. It will be in our bedroom, mounted on the inner back wall of the radio table. BJ |
Running a radio from a large rechargeable cell or battery
Whatever you do,don't smoke near a car type wet cell battery and don't
drop a car type wet cell battery,,, they can and sometimes do explode! You can find pictures on the internet or see batteries that have exploded in scrap metal/junk yards.Not a pretty sight at all. cuhulin |
Running a radio from a large rechargeable cell or battery
www.devilfinder.com Exploded auto batteries.
Some of those cell phone batteries have been known to explode too.Always buy a new cell phone battery for your cell phone (if you have a cell phone,I don't own one) at a cell phone store that sells the same brand name and model number of the required battery for your cell phone. cuhulin |
Running a radio from a large rechargeable cell or battery
www.devilfinder.com Optima car batteries
If you plan on using a car type battery in your home,an Optima battery might be best.Especially if an Optima battery will last much longer than a regular wet cell car type battery. cuhulin |
Running a radio from a large rechargeable cell or battery
If you plan on using a car type battery in your home,an Optima battery
might be best.Especially if an Optima battery will last much longer than a regular wet cell car type battery. cuhulin I appreciate this, and it might be OK in the garage, but I don't think my lady would care much for an unsealed wet-cell battery of any kind in the house. I think I'll look for the sealed kind. BJ |
Running a radio from a large rechargeable cell or battery
Most women (if they knew the truth about wet cell car type batteries)
won't put up with car type batteries in their homes.Especially if those battery fumes and battery acid ruins their expensive clothes. cuhulin |
Running a radio from a large rechargeable cell or battery
Dear Bruce,
I own a Century Electri-pac Model BPIP-99 (Portable Electric Power - Cordless and Rechargeable) which meets all your requirements. I bought it several years ago from THE SPORTSMAN'S GUIDE catalog ($75.00 at the time). I do not know if this model is still available, but you could investigate. Similar items are available at THE PEP BOYS. In fact I have powered my AOR AR7030 Plus and my Wellbrook ALA 330S from this unit. Everything worked fine. Best, Joe |
Running a radio from a large rechargeable cell or battery
Most auto parts stores and truck and marine supply/parts stores sell
Portable Electric Power units.Check out the pawn shops too,you might find a good deal there.Looking in my November 2005 issue of Popular Science magazine I see a two page ad for Black & Decker Portable Power Solutions.The ad says Wal Mart stores sells them and there is a website to check out www.vectormfg.com cuhulin |
Running a radio from a large rechargeable cell or battery
On 2005-10-28 14:33:26 -0400, said:
www.devilfinder.com Information about Gel Cell Batteries and Gel Cell Battery Chargers Some information there at that good old devilfinder.com search. cuhulin Look into AGM batteries, they are made for inside use and are spill proof as well. Don't use car batteries, they are not made for the kind of ap he's looking for. -- PCs, like air-conditioners, are useless when you open Windows. |
Running a radio from a large rechargeable cell or battery
I have to agree.Regular car type batteries should not be used inside a
home,to dangerous. cuhulin |
Running a radio from a large rechargeable cell or battery
In article . com,
bpnjensen wrote: Hi, folks - I would like to try running my Icom R-75 at home from a 12 - 13.8 volt cell or battery. The requirements would be that the cell would be able to recharge from 115v AC during the radio's off time, and that while the radio is turned on, the battery would be electrically disconnected from the wall AC. It does not matter to me whether this connect / disconnect is manual or automatic. My cure for the power outage blues was to go buy a "Jump Start Power Pack" in the automotive section of the local Target store. This is a 19 Amp Hour Gel cell in a plastic case with a built in volt meter and jumper cables, and a "cigarette lighter" power jack on the front. It uses a seperate wall wart for the charger. It was on sale at about half the one off catalog price of a similar sized gel battery. $35, as I remember. They're a standard item in automotive stores and big box discount stores. Some even have built in 120 volt AC "inverters" built in. Vector, Coleman (the camping equipment people), and many others "make" them. (Well, import them from China). The power hasn't gone out since, but I've used it to start the car several times. Mark Zenier Googleproofaddress(account:mzenier provider:eskimo domain:com) |
Running a radio from a large rechargeable cell or battery
Joe wrote:
I own a Century Electri-pac Model BPIP-99 (Portable Electric Power - Cordless and Rechargeable) which meets all your requirements. I bought it several years ago from THE SPORTSMAN'S GUIDE catalog ($75.00 at the time). I do not know if this model is still available, but you could investigate. Similar items are available at THE PEP BOYS. In fact I have powered my AOR AR7030 Plus and my Wellbrook ALA 330S from this unit. Everything worked fine. This sounds promising - nothing like simple and effective! I will stop at a Pep Boys and look into this type of thing. Do you recall, offhand, what the amp-hour rating is, and how long it takes to do a full recharge? Thanks, Bruce |
Running a radio from a large rechargeable cell or battery
Hi Joe...
I'm curious, do you find that the inverter generates noise, as suggests it would? Joe Analssandrini wrote: Dear Bruce, I own a Century Electri-pac Model BPIP-99 (Portable Electric Power - Cordless and Rechargeable) which meets all your requirements. I bought it several years ago from THE SPORTSMAN'S GUIDE catalog ($75.00 at the time). I do not know if this model is still available, but you could investigate. Similar items are available at THE PEP BOYS. In fact I have powered my AOR AR7030 Plus and my Wellbrook ALA 330S from this unit. Everything worked fine. Best, Joe |
Running a radio from a large rechargeable cell or battery
On 29 Oct 2005 20:24:26 -0700, "junius" wrote:
Hi Joe... I'm curious, do you find that the inverter generates noise, as suggests it would? I'm not Joe however I have use radios in the vicinity of [inexpensive] inverters and have found them to be very effective noise generators. Joe Analssandrini wrote: Dear Bruce, I own a Century Electri-pac Model BPIP-99 (Portable Electric Power - Cordless and Rechargeable) which meets all your requirements. I bought it several years ago from THE SPORTSMAN'S GUIDE catalog ($75.00 at the time). I do not know if this model is still available, but you could investigate. Similar items are available at THE PEP BOYS. In fact I have powered my AOR AR7030 Plus and my Wellbrook ALA 330S from this unit. Everything worked fine. Best, Joe |
Running a radio from a large rechargeable cell or battery
OK,get two six volt electric Golf Cart batteries and hook them up with a
couple of battery cables to get twelve volts. cuhulin |
Running a radio from a large rechargeable cell or battery
Cheap inverters put out square waves (not quite, but good enough for
this discussion). They make a ton of racket, so I can't see how anyone would consider them suitable for use around radios. Further, if your radio runs off of 12VDC, why take a 12V battery, invert it to 117V AC, then step it down and rectify to 12VDC. For devices that run off of 12V, note that the 12V is nominal. Just about everything can run from the 13.8V float voltage, with margin. The only pain in the arse is the Wellbrook pre-amp, which is positive ground. Touch the case to to a negative ground and you pop the internal fuse. When I use the device in the field, I place it in a zip lock bag, poking a hole for the cable. They really should have insulated the thing. Of couse, you need to build a special postive ground cable (cigarette lighter adapter) and make sure you only use it with the wellbrook. In the future, I'm going to build a 12V distribution box using cannon connectors. Those cigarette lighter connectors are really crap. wrote: On 29 Oct 2005 20:24:26 -0700, "junius" wrote: Hi Joe... I'm curious, do you find that the inverter generates noise, as suggests it would? I'm not Joe however I have use radios in the vicinity of [inexpensive] inverters and have found them to be very effective noise generators. Joe Analssandrini wrote: Dear Bruce, I own a Century Electri-pac Model BPIP-99 (Portable Electric Power - Cordless and Rechargeable) which meets all your requirements. I bought it several years ago from THE SPORTSMAN'S GUIDE catalog ($75.00 at the time). I do not know if this model is still available, but you could investigate. Similar items are available at THE PEP BOYS. In fact I have powered my AOR AR7030 Plus and my Wellbrook ALA 330S from this unit. Everything worked fine. Best, Joe |
Running a radio from a large rechargeable cell or battery
Positive is actually Negative and Negative is actually Positive.But
y'all don't expect the Society of Automobile Engineers to change their books,do y'all? Those brits had it right all the time.I have to get my beauty sleep now.Now I lay me down to sleep,I pray the Lord my soul to keep,if I should die before I wake,I pray the Lord my soul to take. Move over,Blueberry doggy. cuhulin |
DC Power System (Battery & Charger) to power most of your Shortwave Radio "Needs" !
BpnJ,
Here is an outline of a DC Power System (Battery & Charger) to supply most of your Shortwave Radio 'needs' for a Daily use of 3 to 6 Hours. http://groups.yahoo.com/group/Shortw...a/message/6134 For your 'perceived' "Needs" you may wish to consider : 1. THE BATTERY : 12 Volt (12VDC) 18 AH Ampere Hour Battery - - - 18 Hours at 1 Amp - - 9 Hours at 2 Amps - 6 Hours at 3 Amps 4.5 Hours at 4 Amps 3.6+ Hours at 5 Amps - 3 Hours at 6 Amps - - 2 Hours at 9 Amps - - - 1 Hour at 18 Amps Battery Specifications GPS-12180 Voltage : 12 Volts AGM Style : AGM Amp Hour : 18AH Length : 7.13" Width : 2.99" Height : 6.57" Batteries Per Pack : 1 Weight : 13 lb This type of Battery is commonly used in in Moterized Wheelchairs. Why is this "Sealed" Battery Superior to other Batteries? * Vibration Resistant Design * Results in longer battery life * Superior Delivery * Faster Charging * Improved overall performance * 1 Year Full Replacement Warranty * Limited warranties offered by the competition * Deep Discharge Recovery * Extended design life from improved plate conductivity * 100% Sealed * No acid tube or spills * Eliminates acid damage to chrome or painted areas * Longer Battery Storage Life * When fully charged, it can be stored up to 2 years * May be installed in all positions {Except upside down} * Great for custom installations * Shipped Fully Charged * Ready to install upon receipt of battery Cost - Prices out around US $ 32 BATTERY DUTY CYCLE : Estimated Battery Daily Average Duty Cycle of 67% which is about 12 Ampere Hours (AH) per Day. = = = Resulting in a 50% Battery Power (AH) Reserve Factor. 2. THE BATTERY CHARGER : Automatic 12 Volt (12V) Battery Charger 1 Amp Smart Automatic Battery Charger Rated at 1 Amp to Trickle Charge. Safely charges and maintains Batteries at Full Charge. http://www.gruber.com/gps-pdflib/bro.../55-805000.pdf * Automatic Two Stage Charging - This charger is a two stage Battery Charger designed to fully charge a Battery and maintain it at proper storage voltage without the Battery damaging effects caused by unregulated trickle chargers. * Alligator Clip Lead Cable Included * This charger can be used for any AGM, Gel Cell, Vehicle, and Alarm 12 volt batteries. Battery Charger Specifications : APC # : 55-805000 Electrical Voltage Rating : 12V Electrical Current Rating : 1000 mA = 1 Amp Length : 3.76" Width : 2.70" Height : 2.25" Weight : 2.02 Oz. Cables : Alligator Clip Cost - Prices out around US $ 22 Why is this Battery Charger Superior ? * UL Approved 1 Amp (1000mA) maximum charge Rate * Automatic Smart 2-stage charging system * LED's provide visual indication of the charging mode * Charge or maintain up to 4 Batteries of similar type - in parallel Internal charge sensing circuitry and auto-switch to trickle charge * Smart Safety Circuit to prevent overcharging and prolong battery life * Output posts for a variety of charging purposes. http://cgi.ebay.com/_W0QQitemZ5629570379 CHARGER DUTY CYCLE : * Estimated Charger Time of 12 Hours for a Battery Daily Average Duty Cycle of 67% which is about 12 Ampere Hours (AH) per Day. = = = Resulting in an available Battery Use Time of 12 Hours. * Estimated Charger Time of 18 Hours for a Battery Daily Average Duty Cycle of 100% which is about 18 Ampere Hours (AH) per Day. = = = Resulting in an available Battery Use Time of 6 Hours. BUILDING THE "DC POWER SYSTEM" SERVICE BOX : http://www.officeworld.com/Worlds-Bi...BDY51532/05Q4/ Use a Metal Box for the Electrical and Safety Enclosure for both the Battery and Charger. * Install a standard Electrical Box for a regular AC Outlet * Use a short 6 to 10 Foot Heavy Duty (Outside) Utility Cord 14-16 AWG between the Wall Outlet and the Metal Box. * Install a standard SPST Electrical Switch for the AC Power Switch. [On] and [Off] {Off = Emergency Kill Switch} * Install a DPDT electrical Switch for the [Charge] and [In Use] DC Power Output Switching. Note - The "Center" Contacts are for the [Battery]; with one side [Charge] and the other side [In Use] * Install the Battery {Up-Right Position} * Plug-in the AC Power to DC Battery Charger * Wire the Charger and the Battery to the DC Power Switch. * Install a Smoke Detector as an Over-Load and Fire Detector. * Wire the Battery to DC Service Distribution Line. PLACING THE "DC POWER SYSTEM" IN USE : 1. Ensure that the AC Power Switch is Off and the DC Power Output Switch is in the [Charge] Position. 2. Plug-in the AC Power Cord to the Wall Outlet. 3. Set the DC Power Switch to [Charge] 4. Set the AC Power Switch to [On] 5. Wait 18 Hours for the Battery to be Fully Charged. 6. Set the DC Power Switch to [In Use] - - - and enjoy your Radios :o) ! as always - more than you wanted to know - iane ~ RHF . Tous Sont Bienvenus ! - - - Groupe par Radio d'auditeur d'onde courte pour des Antennes de SWL http://groups.yahoo.com/group/Shortwave-SWL-Antenna/ . Alle Sind Willkommen ! - - - Shortwave Radiozuhörer Gruppe für SWL Antennen http://groups.yahoo.com/group/Shortwave-SWL-Antenna/ . Tutti Sono Benvenuti ! - - - Gruppo Radiofonico dell'ascoltatore di onda corta per le Antenne di SWL http://groups.yahoo.com/group/Shortwave-SWL-Antenna/ . Todos São Bem-vindos ! - - - Grupo de Rádio do ouvinte do Shortwave para Antenas de SWL http://groups.yahoo.com/group/Shortwave-SWL-Antenna/ . Все *адушны ! - - - Группа оператора на приеме коротковолнового диапазона Radio для Aнтенн SWL http://groups.yahoo.com/group/Shortwave-SWL-Antenna/ . ¡Todos Son Agradables! - - - Grupo de Radio del oyente de la onda corta para las Antenas de SWL http://groups.yahoo.com/group/Shortwave-SWL-Antenna/ . = = = = = Translation = = = = = All are Welcome - - - To Join the Shortwave Listeners (SWL) Antenna Group on YAHOO ! http://groups.yahoo.com/group/Shortwave-SWL-Antenna/ . . .. . |
Running a radio from a large rechargeable cell or battery
On Sun, 30 Oct 2005 05:41:07 -0700, Eric F. Richards
wrote: wrote: SNIP I use Exeltech inverters for things that won't run directly off 12 or 24 volts, and they are quite clean unless run at or above rated capacity (Their ratings are quite conservative). Exeltechs are pure sine wave inverters -- they are very good, and cost more than your typical Big Box inverters. As for distribution, I use West Mountain Radio RigRunners with Anderson PowerPole connectors. These are used by ARES, are rated to 30 amps in 12VDC and are "genderless" in that any connector can connect to any other. http://www.exeltech.com http://www.westmountainradio.com Eric, Thanks for sharing the tip on Exeltech, I am going to check them out. I figured a decent inverter would cost more than a similar capacity square wave however, having been around a square wave inverter with a radio I'm pretty sure it's a worthwhile expense. As to the RigRunners and Anderson PowerPole's .......... once I switched to them I never looked back! |
DC Power System (Battery & Charger) to power most of your Shortwave Radio "Needs" !
Hi RHF,
Was reading through the info you had given and had a question regarding the 55-805000 Battery Charger. Is this device for charging a battery through the AC current in one's home? I had been looking at the Xantrex 1500 (http://www.xantrex.com/web/id/63/p/2...24/product.asp) because it seemed really convenient in this regard (chargin' it from an outlet at home; no danger of overcharge, etc.). The price, however, is pretty steep for the Xantrex ($270 or so from these boating sources). Best, Junius RHF wrote: 2. THE BATTERY CHARGER : Automatic 12 Volt (12V) Battery Charger 1 Amp Smart Automatic Battery Charger Rated at 1 Amp to Trickle Charge. Safely charges and maintains Batteries at Full Charge. http://www.gruber.com/gps-pdflib/bro.../55-805000.pdf * Automatic Two Stage Charging - This charger is a two stage Battery Charger designed to fully charge a Battery and maintain it at proper storage voltage without the Battery damaging effects caused by unregulated trickle chargers. * Alligator Clip Lead Cable Included * This charger can be used for any AGM, Gel Cell, Vehicle, and Alarm 12 volt batteries. Battery Charger Specifications : APC # : 55-805000 Electrical Voltage Rating : 12V Electrical Current Rating : 1000 mA = 1 Amp Length : 3.76" Width : 2.70" Height : 2.25" Weight : 2.02 Oz. Cables : Alligator Clip Cost - Prices out around US $ 22 Why is this Battery Charger Superior ? * UL Approved 1 Amp (1000mA) maximum charge Rate * Automatic Smart 2-stage charging system * LED's provide visual indication of the charging mode * Charge or maintain up to 4 Batteries of similar type - in parallel Internal charge sensing circuitry and auto-switch to trickle charge * Smart Safety Circuit to prevent overcharging and prolong battery life * Output posts for a variety of charging purposes. http://cgi.ebay.com/_W0QQitemZ5629570379 CHARGER DUTY CYCLE : * Estimated Charger Time of 12 Hours for a Battery Daily Average Duty Cycle of 67% which is about 12 Ampere Hours (AH) per Day. = = = Resulting in an available Battery Use Time of 12 Hours. * Estimated Charger Time of 18 Hours for a Battery Daily Average Duty Cycle of 100% which is about 18 Ampere Hours (AH) per Day. = = = Resulting in an available Battery Use Time of 6 Hours. |
DC Power System (Battery & Charger) to power most of yourShort...
For that kind of money,you can buy a big enough solar cell and let the
Sun recharge that battery. cuhulin |
Running a radio from a large rechargeable cell or battery
Dear Bruce,
Specifications on the back of the unit read: Ratings: 115V Output 300 Watts (2.3 Amps) @ 60Hz 12 Volt Output 20 Amps 12 Volt Input 8 Amps Maximum I do not remember how long the initial charge took. I leave it plugged in when it is not in use so it is always charged and ready to use. I do not use it often. I keep it as a backup power supply. But it worked just fine when I tried it with my radio and antenna. Best, Joe |
Running a radio from a large rechargeable cell or battery
Hello Junius,
The unit probably would generate noise if one placed it near the radio. But why would anyone do that? ANY eectrical generator will generate RFI if a radio is placed close to it. SOMETIMES one has to use common sense! (That's why they invented extension cords.) Best, Joe |
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