I have a few Rechargeable AAA and AA cells for use in gadgets. But they discharge too fast after charging for 12 hours!! Is there any way to know they are practically dead already? Discolouration,etc. After charging, they show good voltage on voltmeter.
2006-11-01 14:15:53 · 5 answers · asked by inquisitive 1 in Science & Mathematics ➔ Engineering
The only way to know for sure is if they do not hold a charge for any length of time. Rechargeable batteries can only be recharged a number of times before they will not hold a charge. When you purchase a new battery, it should state how many times the battery may be recharged before it will no longer hold a charge. Might be a good idea to keep track of how many times you recharge each battery to know for sure.
2006-11-01 14:21:14 · answer #1 · answered by Anonymous · 0⤊ 0⤋
To make it simple, rechargable batteires will lose it's ablity to recharge after so many times. The battery will usualy be able to keep a charge for a half a minute or so before it will go a kaput. If your battery is doing that, then it is dead and it can no longer keep a steady charge.
2006-11-01 14:18:10 · answer #2 · answered by wizo 2 · 0⤊ 0⤋
to my knowledge theres no other sign other than them going flat shortly after charging.......once the life goes in them its time to get new ones.....one way to prolong their life is to make sure they are fully drained prior to recharging them.....
2006-11-01 14:18:38 · answer #3 · answered by askaway 6 · 0⤊ 0⤋
if you have had them for a long time and had good use out of them, it could be time to get new ones.
2006-11-01 14:25:37 · answer #4 · answered by Special K 4 · 0⤊ 0⤋
well me and my brother put it in the freezer so they can get cold and recharge... that is what i think
2006-11-01 14:17:50 · answer #5 · answered by Pinaygurl_melodie 1 · 0⤊ 0⤋