2x Ampsplus 10440 320mAh 3.7V IMR High Power Rechargeable Batteries + Case
Nominal Capacity: 320mAh. Battery: 10440. 10440 Battery Safety! 10440 3.7V Li-Ion Batteries can leak when misused or when defective! Never replace AAA Alkaline or Ni-MH 1.5v Batteries with 3.7v Li-Ion batteries.