I bought this light through Amazon. It looks like the type of light you'd buy at DealExtreme or such. It's incredibly bright and the quality of the light looks good. The rest of the system possibly questionable. The battery came charged. There were no instructions in the box.

I'm concerned about any precautions I should take when charging the battery. The website says the battery is a Lithium cell. The sticker on the charger says Li-Poly input:100-240V; 50/60H 0.35A max. Output: 8.4V. Does the battery need to be discharged before charging? Do I need to be careful not to leave the charger plugged in too long? There's a little light on the front of the charger. When I plugged the battery into the charger, it glowed green. If the light is glowing green, does that mean the light is 100% charged?