I disassembled two Li_ion=20
pack. One from miniDV
and one from laptop. I found
both have problem of over=20
voltage. for 3.6V Li-ion,=20
constant V reach >4.2V.=20

I didn't see any experiemental=20
data about damage of over=20
voltage to Li-ion. But, I can
often read V is critical in=20
Li-ion charging. What =20
100mV over V will do to Li-ion bettery?

If I can't find positive data about
100mV over voltage, I think I will charger
all of my Li-ion battery by=20
my own charger. It has at least 5%=20
accuracy of V. Or, I will re-adjust=20
all my Li-ion battery charger.

Also, I bought some new OME Li_ion battery
and replaced one my laptop battery=20
pack and one of my miniDV battery pack.
The result, is perfect! 1/10 of cost=20
and "endless" battery running time.

Any body else think of maitaining Li-ion=20
battery?






 
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