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#1
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Energize 2500mah problem
I find the Energizer 2500mah double A batteries have major problem that
causes them not to hold a charge. When I require the use of these batteries I find they are dead after only a few weeks of shelf life. The Energizer 2100mah cells are great with no problems what so ever and they have an outstanding shelf life. When I called Energizer to discuss the problem with the 2500mah, they deny any problems with these batteries and inform me the problem is my charger. I have use 3 different charges and the problem remains. I recommend no one purchase the Energizer 2500 mah batteries due to their failure to hold a charge. I will never purchase Energizer batteries again because the Energizer Company fails to support the customer. Has anyone else have this problem? Bob, AA8X |
#2
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Energize 2500mah problem
On Fri, 01 Dec 2006 13:01:19 GMT, "Only Fair"
wrote: I find the Energizer 2500mah double A batteries have major problem that causes them not to hold a charge. When I require the use of these batteries I find they are dead after only a few weeks of shelf life. The Energizer 2100mah cells are great with no problems what so ever and they have an outstanding shelf life. When I called Energizer to discuss the problem with the 2500mah, they deny any problems with these batteries and inform me the problem is my charger. I have use 3 different charges and the problem remains. I recommend no one purchase the Energizer 2500 mah batteries due to their failure to hold a charge. I will never purchase Energizer batteries again because the Energizer Company fails to support the customer. Has anyone else have this problem? Bob, AA8X If these are NiMh batteries I have found that to be the normal self discharge situation. . John Ferrell W8CCW |
#3
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Energize 2500mah problem
John, yes they are NiMh and today have found other people are having
problems with the 2500mah series. Bob, AA8X "John Ferrell" wrote in message ... On Fri, 01 Dec 2006 13:01:19 GMT, "Only Fair" wrote: I find the Energizer 2500mah double A batteries have major problem that causes them not to hold a charge. When I require the use of these batteries I find they are dead after only a few weeks of shelf life. The Energizer 2100mah cells are great with no problems what so ever and they have an outstanding shelf life. When I called Energizer to discuss the problem with the 2500mah, they deny any problems with these batteries and inform me the problem is my charger. I have use 3 different charges and the problem remains. I recommend no one purchase the Energizer 2500 mah batteries due to their failure to hold a charge. I will never purchase Energizer batteries again because the Energizer Company fails to support the customer. Has anyone else have this problem? Bob, AA8X If these are NiMh batteries I have found that to be the normal self discharge situation. . John Ferrell W8CCW |
#4
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Energize 2500mah problem
"Only Fair" wrote in
: John, yes they are NiMh and today have found other people are having problems with the 2500mah series. Bob, AA8X I use 2500 ma. I have several sets. They work fine for me. Yes, you cannot have them sit around. NiMh cells do have a self-discharge. The conditions you mention seem perfectly normal for nimh cells. |
#5
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Energize 2500mah problem
In article ,
Only Fair wrote: I find the Energizer 2500mah double A batteries have major problem that causes them not to hold a charge. When I require the use of these batteries I find they are dead after only a few weeks of shelf life. The Energizer 2100mah cells are great with no problems what so ever and they have an outstanding shelf life. When I called Energizer to discuss the problem with the 2500mah, they deny any problems with these batteries and inform me the problem is my charger. I have use 3 different charges and the problem remains. I recommend no one purchase the Energizer 2500 mah batteries due to their failure to hold a charge. I will never purchase Energizer batteries again because the Energizer Company fails to support the customer. Has anyone else have this problem? I don't have direct experience with those specific models. However, I have read (and noticed myself) that NiMH cells have a much greater self-discharge rate than NiCD cells do. One source states that typical NiCd batteries tend to self-discharge by around 10% per month, that typical NiMH batteries are up in the 25%-per-month range, and that there is a tradeoff between NiMH self-discharge rate and total battery capacity. Self-discharge can be reduced, it seems, by selecting the hydride material to improve hydrogen bonding, but this typically reduces the battery capacity. It seems likely to me, based on this reading and on what you report, that the 2100 and 2100 mAH Energizer batteries may have been designed and optimized for two different sorts of use strategy. The 2100s may use a hydride with stronger hydrogen bonding, which would reduce self-discharge and give a long shelf/storage life. The 2500s sound as if they use a weaker-binding hydride, optimizing for the greatest amount of storage capacity when freshly charged, but with a more rapid self-discharge. I've heard similar tales from a guy who makes extensive use of battery-powered electric hand tools. In his application (occasional use) he strongly prefers NiCd batteries, since he can charge them up and depend on the tool still working in a few months. The NiMH batteries seem to be preferred by people who use their tools constantly, and need recharge them every few days anyhow - the faster self-discharge simply doesn't matter for these folks and the greater battery capacity is a win. -- Dave Platt AE6EO Hosting the Jade Warrior home page: http://www.radagast.org/jade-warrior I do _not_ wish to receive unsolicited commercial email, and I will boycott any company which has the gall to send me such ads! |
#6
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Energize 2500mah problem
Dave Platt wrote:
In article , Only Fair wrote: I find the Energizer 2500mah double A batteries have major problem that Sounds like trickle charger, charging at a few milliamps higher than the shelf discharge rate would be a good DIY project! Regards, JS |
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