Hi, I have a rechargeable battery from a nokia mobile phone, and i want to connect it to my gba. No problem here. But how can i recharge it while it's connected to the gba?
As you're asking that, you probably don't want to start messing around with charging lithium ion batteries as if you do it incorrectly they can explode fairly violently. The same if the unit starts sucking out more current then the battery is rated at.
i don't think it will drain more power. the cellphone battery is 900mA, while a gba sp battery is 600mA.
