- 8.4v Nimh 1200mah Airsoft Battery with mini Tamiya (Marui) connector - Mini Type Battery with Large Battery Capacity - Innovative 1200mAh NiMH Cell Constructed - Delivers up to a 30Amp discharge rate - High-Drain Type means high power output for your AEG - Rechargeable Battery with Mini Plug - NOTE: NO DISCHARGING REQUIRED, just charge every time you play WARNING: Do not overcharge batteries! If they overheat, you could cause damage to the battery and create a potential fire hazard! Calculate the proper amount of time required to charge a battery by dividing the battery's milliamp capacity by the chargers charge rate, e.g. it would take a 500 mah rate charger ~ 2 hours 25 minutes to charge a completely drained 1200 mah battery. If you are not certain of a battery's remaining charge and you wish to charge it, place the battery on the charger and check it every 5-10 minutes. If the battery is warm to the touch, assume it is fully charged. No longer than 2 hours for model # OBG1207A-Mini For: Tokyo Marui M4A1 EG Tokyo Marui MP5 SD6 Tokyo Marui MP5J Tokyo Marui P90 TR Tokyo Marui PSG-1 Tokyo Marui Steyr AUG Tokyo Marui M733