Hello guys.
im using a Robbe Power Peak Ultimate to charge my Li-Po APACHE 1200 Mah 11.1V pack from www.anyrc.com
anyway i set the smart charger to 1.2A charge - no go, it charges only at 0.2A, same when i set it to 1A and 0.8A, it starts to climb (up to about 0.3A) and then goes back down to charge at 0.2A ot 0.17A. it just wont stay charging over 0.2A no matter what i do. this is only the second charge, but in the first one i tried 1.2A, it didnt work so lowered to 1A and that DID WORK ! but now it doesnt work again. []
any idea why ? this is a new charger, the new model had the Li charge function.
thanks.

UPDATE: i just noticed the pack was almost full, could that have caused it?
also, the power peak ultimate does NOT have a discharge for Li-po, so how can i duscharge them ? maybe even in Nicd mode if i set the right current and do the math for voltages ? what do you guys say ?

thanks.

If the LiPoly pack was almost full, then the current would drop. In order to maintain a charge rate of 1.2 Amps, you would need to apply a much higher voltage than the cells can withstand. To oversimplify, electricity only flows from higher voltage to lower voltage. The greater the difference between the source and destination voltages, the higher the current flow between them.

When the pack is completely empty, the charger will charge at the full charge rate of 1.2 Amps. As the pack nears 4.2 Volts per cell, the current naturally decreases because the voltage difference decreases.

The best way to discharge a LiPoly is by putting it in an airplane, and flying it!

Yep, that was it !
i just put the pack into charging again, this time its charging at 11.87V \ 0.81A - its still not 1C of the pack though... []