If they could be recharged and life expanded, they would have found a way, considering how many billions they have in funds. To be honest, if they could be recharged, Energizer would market them like that. Can you physically recharge them? As you noticed, yes, but it's not a good idea. Lithium Primary batteries are not meant to be recharge. Is there anything else I should know with regard to recharging batteries like this?.Is there a way to increase the lifespan after recharging?.Why is the lifespan so drastically reduced?.Are there any downsides to recharging these batteries in this way?.So I guess my question is in a few parts. Still feels kinda cool to be using the sun's energy rather than throwing them batteries out each time. It's a rough guess but I'd say I probably get about 20% of the original lifespan of the battery. The batteries get up to a voltage (as read by a voltmeter) of 1.6v, but I've noticed that they don't hold their charge anywhere near as long as they originally did. They charge very, very slowly of course, but it definitely works. Just for kicks, I decided to see what would happen if I tried recharging some of my AA Lithium batteries. Some time back though, I found myself with a solar power unit from an outside patio umbrella (it had built-in lights), and noticed that the batteries inside were simply 3 generic AA cell nimh batteries. I have some Energizer lithium AA batteries (1.5v), that work very nicely in electronics that have heavy constant usage, such as my Apple Magic Trackpad. I hope this is the best place for this question.
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