Energizer Accu Power Plus 9 V Rechargeable Battery

What you get: The Recharge Pro works with two four AA or AAA NiMH batteries at once (also with your AA batteries included) Charge status indicators: the display system informs you visually and acoustically about the charge status of your batteries Recharge Pro's fast charging performance delivers a full charge in 4 hours, batteries need to be charged in pairs Auto Safety - The automatic safety shut-off and overcharge protection prevent damage caused by overcharging and help maximise battery performance. Compatible with all AAA and AA NiMH rechargeable batteries (Energizer recharge batteries recommended)