Charging li ion batteries with camera charger.

[Episht]

Hey got a question, can i mod a 4.2v 0.7a camera battery charger to charge my li ion batts or li mn batts.
fyi my only charger got screwed and im exploring before new charger comes.

 

[asdaq]

The amperage of the charger should not exceed the the capacity of the batteries so they should be above 700mAh. Otherwise I wouldn't leave it unattended or do it without checking with a multimeter every so often. Have you got an old cellphone charger or even a 510 charger maybe?

 

[Episht]

The amperage of the charger should not exceed the the capacity of the batteries so they should be above 700mAh. Otherwise I wouldn't leave it unattended or do it without checking with a multimeter every so often. Have you got an old cellphone charger or even a 510 charger maybe?

i have only 900mah and 1100mah batteries, means im able to it! am i right?
do you mean those nokia chargers? and thanks for replying anyway!

 

[asdaq]

That is one issue only. The other part is making sure that the charger cuts off as close to 4.2v as possible especially with the LiMn batts. i realize you don't want to wait around and this is a temporary fix, but could you charge the camera battery and measure it's voltage when fully charged first? I certainly don't want to say go ahead and do it only to have you burn down the house, so do use caution.

 

[slimest]

I use Canon charger about 1.5 years to charge eGo batteries. It works perfectly. But camera battery has a third contact - thermistor. If you simply connect eGo accumulator to such charger, it thinks that your battery is defective, and does not allow to charge. So you have to use a resistor which imitates thermistor's resistance. In my case cold resistance is 10 kOm. If you use a different charger, test cold resistance of your thermistor (inside camera battery). It goes usually betwen ground (minus) and a separate contact.

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Russian, sorry.