This 16.8 Volt (6800 mAh) Lithium-Ion replacement battery is more powerful than the standard battery that comes standard with both of the EvaClean™ and the electrostatic sprayers. This battery can deliver up to 8 hours of run time, and will deliver over 800 recharge cycles. The battery can be fully recharged in 1 to 2 hours when charged using the that comes included with these sprayers.