Maha PowerEx Rechargeable NiMH Battery has true 9.6v 230mAh rating. The actual voltage for 9.6V 230mAh Battery is slightly higher than standard 9V Alkaline Batteries. It will outperform a standard 9 volt rechargeable battery due to the higher voltage. The PowerEx 9.6V 9V batteries will operate paintball hoppers and wireless devices that other 9V rechargeable batteries cannot power. It enables wireless microphones and paintball hoppers to last longer and work faster.