Batterycharger ??
Hi
Anyone familiar with the Energiser CHDC-CA Battery Charger? That just happens to be the model number of the one I have but very common all over the place and just the typical AAA and AA battery charger. Charges 4 at a time. It is timer operated meaning it operates for about 8.5 hours and shuts off preventing over charging. The manual says it will charge 2650mah AA batteries in 8.8 hours then shuts off automatically. I try to deplete the batter as much as possible. The unit's output is 2.8v 360mh . Now I believe also its max charge time is 8.5 hours or auto shuts off at 8.5 hours. Now, my new batteries ni mh are 3000 mah . Now if you cross mulitply you end up with a 10 hour charge time mathematically, that can be done, just charge 1.2 (or 1.5) hours longer and remember to stop it. But if you factor it differently as the 3000mah divided by the 360 equals the 8.3 hours to charge, not needing the additional charging. Anyone have experience with these? Just typical rechargable batteries for camera. Any tips on charging these properly? Thnx 73s |
Batterycharger ??
" Tuuk" wrote in message ... Hi Anyone familiar with the Energiser CHDC-CA Battery Charger? That just happens to be the model number of the one I have but very common all over the place and just the typical AAA and AA battery charger. Charges 4 at a time. It is timer operated meaning it operates for about 8.5 hours and shuts off preventing over charging. The manual says it will charge 2650mah AA batteries in 8.8 hours then shuts off automatically. I try to deplete the batter as much as possible. The unit's output is 2.8v 360mh . Now I believe also its max charge time is 8.5 hours or auto shuts off at 8.5 hours. Now, my new batteries ni mh are 3000 mah . Now if you cross mulitply you end up with a 10 hour charge time mathematically, that can be done, just charge 1.2 (or 1.5) hours longer and remember to stop it. But if you factor it differently as the 3000mah divided by the 360 equals the 8.3 hours to charge, not needing the additional charging. Anyone have experience with these? Just typical rechargable batteries for camera. Any tips on charging these properly? Thnx 73s I can contribute only a little: Ni-MH batteries and Ni-Cd batteries are different as to how they take a charge. While many Ni-Cd's no longer display a memory effect, some do. As far as I know, there's no memory effect for Ni-MH. This means you need to treat each type differently. Would I be out of line to ask you what kind of battery you use and then narrow the discussion to that type? "Sal" |
Batterycharger ??
Hi Sal
I bought the ones off ebay that came from hong kong in about two weeks. Package of 24 aa batteries and aaa batteries. These are nickle metal hidryde. There shouldn't be a memory like the cadnium ones. These are the 3000 mah batteries and just wondering about charging them with my older battery charger that only explaines about the 2650, so I don't believe my batteries are charging to full capacity. Not even close. "Sal" wrote in message ... " Tuuk" wrote in message ... Hi Anyone familiar with the Energiser CHDC-CA Battery Charger? That just happens to be the model number of the one I have but very common all over the place and just the typical AAA and AA battery charger. Charges 4 at a time. It is timer operated meaning it operates for about 8.5 hours and shuts off preventing over charging. The manual says it will charge 2650mah AA batteries in 8.8 hours then shuts off automatically. I try to deplete the batter as much as possible. The unit's output is 2.8v 360mh . Now I believe also its max charge time is 8.5 hours or auto shuts off at 8.5 hours. Now, my new batteries ni mh are 3000 mah . Now if you cross mulitply you end up with a 10 hour charge time mathematically, that can be done, just charge 1.2 (or 1.5) hours longer and remember to stop it. But if you factor it differently as the 3000mah divided by the 360 equals the 8.3 hours to charge, not needing the additional charging. Anyone have experience with these? Just typical rechargable batteries for camera. Any tips on charging these properly? Thnx 73s I can contribute only a little: Ni-MH batteries and Ni-Cd batteries are different as to how they take a charge. While many Ni-Cd's no longer display a memory effect, some do. As far as I know, there's no memory effect for Ni-MH. This means you need to treat each type differently. Would I be out of line to ask you what kind of battery you use and then narrow the discussion to that type? "Sal" |
Batterycharger ??
On Mon, 26 Mar 2012 20:22:09 -0400, Tuuk wrote:
Hi Anyone familiar with the Energiser CHDC-CA Battery Charger? That just happens to be the model number of the one I have but very common all over the place and just the typical AAA and AA battery charger. Charges 4 at a time. It is timer operated meaning it operates for about 8.5 hours and shuts off preventing over charging. The manual says it will charge 2650mah AA batteries in 8.8 hours then shuts off automatically. I try to deplete the batter as much as possible. The unit's output is 2.8v 360mh . Now I believe also its max charge time is 8.5 hours or auto shuts off at 8.5 hours. Now, my new batteries ni mh are 3000 mah . Now if you cross mulitply you end up with a 10 hour charge time mathematically, that can be done, just charge 1.2 (or 1.5) hours longer and remember to stop it. But if you factor it differently as the 3000mah divided by the 360 equals the 8.3 hours to charge, not needing the additional charging. Anyone have experience with these? As an ANTENNA???!!! |
Batterycharger ??
I have called almost every Henry's and the Energiser's tech line.
Now Energiser cannot advise anything, they only sell batteries up to 2500mah and chargers to same. Now I imagine soon they will be selling 3000mah batteries as Panasonic and so many other mfgs do already. The batter charger I have is obsolete now, 2 years old and actually they still sell it at Henrys. So I suppose my options are to buy a battery charger that is smart charger that measures through trickle the capacity of the charging battery and shuts off when trickle gets low enough. Or, use this charger and after its 8.5 hour automatic shut off time to pull out then push back into wall plug to add about 1.5 hours of charge and not forget or it will run the cycle of 8.5 more hours and dissapate heat or overcharge the batteries reducing their life. The batteries measure 1.38 to 1.39 volts after the 8.5 hour plus the extra about 1.5 hours charge. They measure about 1.17volts when empty. Whats a poor boy to do? Come on Dave, I know you know. And you know that I know that you know that These are for that battery pack for the HT that I use to measure the gnd radiation for my sauna rocks. Very important. "Allodoxaphobia" wrote in message ig.com... On Mon, 26 Mar 2012 20:22:09 -0400, Tuuk wrote: Hi Anyone familiar with the Energiser CHDC-CA Battery Charger? That just happens to be the model number of the one I have but very common all over the place and just the typical AAA and AA battery charger. Charges 4 at a time. It is timer operated meaning it operates for about 8.5 hours and shuts off preventing over charging. The manual says it will charge 2650mah AA batteries in 8.8 hours then shuts off automatically. I try to deplete the batter as much as possible. The unit's output is 2.8v 360mh . Now I believe also its max charge time is 8.5 hours or auto shuts off at 8.5 hours. Now, my new batteries ni mh are 3000 mah . Now if you cross mulitply you end up with a 10 hour charge time mathematically, that can be done, just charge 1.2 (or 1.5) hours longer and remember to stop it. But if you factor it differently as the 3000mah divided by the 360 equals the 8.3 hours to charge, not needing the additional charging. Anyone have experience with these? As an ANTENNA???!!! |
Batterycharger ??
On 27 Mar 2012 03:25:56 GMT, Allodoxaphobia
wrote: On Mon, 26 Mar 2012 20:22:09 -0400, Tuuk wrote: Hi Anyone familiar with the Energiser CHDC-CA Battery Charger? That just happens to be the model number of the one I have but very common all over the place and just the typical AAA and AA battery charger. Charges 4 at a time. It is timer operated meaning it operates for about 8.5 hours and shuts off preventing over charging. The manual says it will charge 2650mah AA batteries in 8.8 hours then shuts off automatically. I try to deplete the batter as much as possible. The unit's output is 2.8v 360mh . Now I believe also its max charge time is 8.5 hours or auto shuts off at 8.5 hours. Now, my new batteries ni mh are 3000 mah . Now if you cross mulitply you end up with a 10 hour charge time mathematically, that can be done, just charge 1.2 (or 1.5) hours longer and remember to stop it. But if you factor it differently as the 3000mah divided by the 360 equals the 8.3 hours to charge, not needing the additional charging. Anyone have experience with these? As an ANTENNA???!!! He's an idiot. He doesn't care that his posts are always off topic, and at least some people doubt he even has a license. He clearly doesn't understand batteries and charging them, nor much of anything else it seems. Just do what most people do - ignore him. |
Batterycharger ??
Hi Robby
Thanks for the repy. I assure you I am not an idiot but can you tell me about the batteries? "Robby" wrote in message ... On 27 Mar 2012 03:25:56 GMT, Allodoxaphobia wrote: On Mon, 26 Mar 2012 20:22:09 -0400, Tuuk wrote: Hi Anyone familiar with the Energiser CHDC-CA Battery Charger? That just happens to be the model number of the one I have but very common all over the place and just the typical AAA and AA battery charger. Charges 4 at a time. It is timer operated meaning it operates for about 8.5 hours and shuts off preventing over charging. The manual says it will charge 2650mah AA batteries in 8.8 hours then shuts off automatically. I try to deplete the batter as much as possible. The unit's output is 2.8v 360mh . Now I believe also its max charge time is 8.5 hours or auto shuts off at 8.5 hours. Now, my new batteries ni mh are 3000 mah . Now if you cross mulitply you end up with a 10 hour charge time mathematically, that can be done, just charge 1.2 (or 1.5) hours longer and remember to stop it. But if you factor it differently as the 3000mah divided by the 360 equals the 8.3 hours to charge, not needing the additional charging. Anyone have experience with these? As an ANTENNA???!!! He's an idiot. He doesn't care that his posts are always off topic, and at least some people doubt he even has a license. He clearly doesn't understand batteries and charging them, nor much of anything else it seems. Just do what most people do - ignore him. |
Batterycharger ??
On Mon, 26 Mar 2012 20:22:09 -0400, " Tuuk"
wrote: Anyone familiar with the Energiser CHDC-CA Battery Charger? Yep. I have one. Piece of junk. Works only with NiMH. It will kill a NiCd battery and will overcharge a partly charged battery. http://data.energizer.com/PDFs/chdc.pdf "Best used with Energizer NiMH batteries." Note that it's obsolete. Now, my new batteries ni mh are 3000 mah. Maybe, under ideal conditions and with a very small load. Otherwise, I've never seen a 3000ma-hr battery. I have a West Mtn Radio CBA-II battery analyzer: http://www.westmountainradio.com/product_info.php?products_id=cba3&navcode=/cbaLink1 I've tested a few of the flea market NiMH batteries claiming to be 3000ma-hr and found them lacking. I'll post the graphs (if I can find them). Incidentally, did you know that it requires one or two initial charge cycles to get an NiMH battery up to full capacity? I didn't believe it so I ran some tests: http://802.11junk.com/jeffl/NiMH/ It's not much, but it's certainly real. Note that the load was on the high side at 1C resulting in measured battery capacity lower than claimed. This is normal, but I was in a hurry. Anyone have experience with these? Just typical rechargable batteries for camera. Any tips on charging these properly? If it's only run by a timer, it's a piece of junk. It probably assumes that the batteries to be charged are totally discharged, and after 8.5 hrs of charging, will be fully charged. That sucks because a half charged battery will be overcharged by that method. If the batteries get warm, they're being overcharged. What it should do is look for a decrease in terminal voltage, indicating EOC (end of charge). http://en.wikipedia.org/wiki/Nickel%E2%80%93metal_hydride_battery#.CE.94V_charg ing_method Mo http://batteryuniversity.com/learn/article/charging_nickel_metal_hydride Now, can be get back to antennas? -- # Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060 # 831-336-2558 # http://802.11junk.com # http://www.LearnByDestroying.com AE6KS |
Batterycharger ??
Hi Jeff, Thanks for the info. That pdf is where I learned that this charger
only runs for 8.5 hours and it recommends stopping at certain times for certain mah batteries. It works nice for me because I can plug it into 120 or 220 where ever I am. And my batteries are always depleted before I charge them. Only problem is that I bought the battery pack for my ht and it takes 10 but charger only charges 4. http://www.ebay.com/itm/160593039544... 4.m1497.l2649 But the batteries I bought were these ones http://www.ebay.com/itm/New-Camera-R...item4cf59ac314 I have bought these batteries before for my home phones and they work great. The home phones batteries lasts for weeks without putting back on the charger. I guess I am used to the ni cads because I like to deplete 100%, just a habit. But that charger pumps out 360 ma at 2.8v and if I do the math that tells me they charge completely at 8.3 hours. That falls within the operating range of the charger. Why does the instructions say 8.5 hours for the 2650 mah battery for full charge? Is the charger that innefficient that there is 20% loss? Or were the first couple charges not effective like you said. This is the third charge and the HT emptied quickly. Plus I am now pulling the charger and plugging in again only for about 1.5 hours. Would you recommend that? Since it is for my HT I would only assume it qualifies for antenna subject, I am surprised that absolutely none of the dozen local electronic stores and box stores had any idea what I was talking about, even the energizer tech support line were scratching their heads, yet seems so logical a question for me because I want those battery lives to last as long as possible and charging is the answer there. Hense my original question about the charger. These batteries measure all 1.38 volts when charged pretty consistantly and 1.17v when depleted, other than that I cannot measure the efficiency of the charger to predict time of charge, according to the manufacture it should be 9.9 hours, according to the math 3000mha devided by 360 ma of the unit says 8.3 hours to charge full capacity. Which is it? 73s "Jeff Liebermann" wrote in message ... On Mon, 26 Mar 2012 20:22:09 -0400, " Tuuk" wrote: Anyone familiar with the Energiser CHDC-CA Battery Charger? Yep. I have one. Piece of junk. Works only with NiMH. It will kill a NiCd battery and will overcharge a partly charged battery. http://data.energizer.com/PDFs/chdc.pdf "Best used with Energizer NiMH batteries." Note that it's obsolete. Now, my new batteries ni mh are 3000 mah. Maybe, under ideal conditions and with a very small load. Otherwise, I've never seen a 3000ma-hr battery. I have a West Mtn Radio CBA-II battery analyzer: http://www.westmountainradio.com/product_info.php?products_id=cba3&navcode=/cbaLink1 I've tested a few of the flea market NiMH batteries claiming to be 3000ma-hr and found them lacking. I'll post the graphs (if I can find them). Incidentally, did you know that it requires one or two initial charge cycles to get an NiMH battery up to full capacity? I didn't believe it so I ran some tests: http://802.11junk.com/jeffl/NiMH/ It's not much, but it's certainly real. Note that the load was on the high side at 1C resulting in measured battery capacity lower than claimed. This is normal, but I was in a hurry. Anyone have experience with these? Just typical rechargable batteries for camera. Any tips on charging these properly? If it's only run by a timer, it's a piece of junk. It probably assumes that the batteries to be charged are totally discharged, and after 8.5 hrs of charging, will be fully charged. That sucks because a half charged battery will be overcharged by that method. If the batteries get warm, they're being overcharged. What it should do is look for a decrease in terminal voltage, indicating EOC (end of charge). http://en.wikipedia.org/wiki/Nickel%E2%80%93metal_hydride_battery#.CE.94V_charg ing_method Mo http://batteryuniversity.com/learn/article/charging_nickel_metal_hydride Now, can be get back to antennas? -- # Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060 # 831-336-2558 # http://802.11junk.com # http://www.LearnByDestroying.com AE6KS |
Batterycharger ??
On Tue, 27 Mar 2012 23:44:36 -0400, " Tuuk" wrote:
Since it is for my HT I would only assume it qualifies for antenna subject, You ASSume wrong oh brainless one! You can't really be that stupid can you? |
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