It depends on what kind of battery it is.
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You can wreck the battery. Get a smart charger or trickle charger to avoid this problem.
charge 4-6 hours, no more.
I read that the initial charge should be 4 hours, but no longer, and that all charges after that should be 2-3 hours, but again, no longer. Charging too long will cause the battery to not be able to hold a charge and could even cause it to leak.
This depends on the type of battery and the charger. Smart chargers are the easiest, as they tell you when it is done. If you don't have one, look at the instructions to see how long, or look at an online chart using your mAh and battery cells.
You need to look at the battery and look up the recomended time. Overcharging will ruin the battery.
About 2-3 hours
Most Sites Say 6 hours the initial charge and 4 hours every subsequent charge.
depends on the battery and charger. standardd wall charger with a nmhi battery 1800mah about 4-6 hours. smart charger untill it says full charge
It uses a 7.2V NI-CD 400 mAh battery. If anyone knows how long to charge it, please say so. I have this airsoft gun too.
About 4-5 hours. You can purchase a smart charger that has a light that turns green when the battery is fully charged as well.