RE: charging batterys
Hi!
You can charge a Litium ion battery with a Lipo charger!
Beware that you must tell the charger what Voltage and Ampere to charge with! For example a 11,4 volt, 450 mAh Lipo battery is charged with 11,4 V and 450mAh (Or any ampere below that value). A 7,2V , 450mAh lipo battery is charged with 7,2V, 450mAh (Or any ampere below that value).
Regards!
Jan K