8.4V-9.6V battery charger with mini male plug NiMH Delta Peak automatic stop full charge If you enjoy extended airsoft skirmish play you need a reliable battery charger. Charge your electric airsoft gun with the Tenergy 8.4V-9.6V battery charger. This charger has a Delta Peak automatic stop full charge system so you don't have to worry about overcharging your gun's battery. ATTENTION: Do NOT use this charger for batteries less than 600 mAh or greater than 2000 mAh. This unit charges Ni-MH batteries only.