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Originally posted by NoWire
I have three spare batteries that I regularly put on rotation with Axim, so my Axim is always have full charged battery, so in theory my backup shouldnt' lose any charge, right?
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Every time you change your main battery, the Axim switches to the BUB until you get the main back on.
Just curious as to why you "regularly" switch main batts? If it's not low, no need to switch, just keep it in the cradle as often as possible when you aren't using the Axim. And
don't purposely drain a LiIon Battery, that will shorten it's life.
Here's some LiIon Battery Information:
All Consumer LiIon batteries (other than coin-type) have circuitry
in the battery itself, to prevent overcharging under any circumstances.
LiIon batteries are actually quite dangerous commodities and the only way they were allowed into the Consumer market was to include this circuitry.
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From First Link:
The charge cannot be terminated on a voltage (Which is what the Axim's green light is indicating). The capacity reached at 4.2 Volts per cell is only 40 to 70% of full capacity. For this reason you need to continue to charge until the current drops, and to terminate on the low current. (Which is what the Battery's Sensing Circuitry is sensing, and then doing).
It is important to note that trickle charging is not acceptable for lithium batteries. The Li-ion chemistry cannot accept an overcharge without causing damage to the cell, possibly plating out lithium metal and becoming hazardous.
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Lithium Ion Charging Basics
Lithium Ion Battery Storage.
How to prolong lithium-based batteries
