Battery
Battery type	Rechargeable battery
Battery size(s)	AAA
Battery technology	Nickel-Metal Hydride (NiMH)
Battery voltage	1.2 V
Battery capacity	800 mAh
Number of batteries included	2 pc(s)
Packaging data
Package width	117 mm
Package depth	84 mm
Package height	12 mm
Package weight	20 g
Package type	Blister
Weight & dimensions
Width	10 mm
Depth	10 mm
Height	44 mm
Weight	36 g

Battery NiMH AAA 1, 2V StayCharged (HR03) 800mAh * Duracell * 2-pack
Duracell StayCharged batteries come pre-charged out of the pack. And you can not use just any battery hundreds of times, but it will remain charged longer.