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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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