NiMh (nickel metal hydride) - recharging is fine at any point, deep discharging after each use actually damages the battery
NiCd (nickel cadmium) - you should completely discharge before charging each time
Somewhere on the battery should be the mAh rating even if it doesn't say if its NiMh or NiCd. If its a large-type battery (usually goes in the stock of the gun) and its 2400mAh or less its NiCd. If its a mini battery (often goes just above or just below the barrel) then I believe its NiCd if its 600mAh and anything higher is NiMh.
I believe this information and more is in the FAQ. Also if your in Canada (can't tell because its not in your profile and we do get people from all over the world on here) then you shouldn't be shooting in your backyard if you don't live in the middle of no where. If there is even a small chance of someone seeing you they can call the cops and you can get in a pile of crap. Its always best to play it safe.
Last edited by LUTNIT; February 12th, 2007 at 00:51..