Includes (4) four 1.2V 2,000 mAh Ni-Mh rechargeable batteries . Ni-Mh batteries have no "memory" effect and can be recharged regarless of their status. Fit all standard "AA" chargers on the market.
Having a 2,000 milliampere hour ( mAh) rate, means they will deliver current up to this amount an a 1 hour basis continuous per battery. Four pack will deliver up to 8,000 mAh ( 8 AMPERES ) of current per hour use. Can be recharged hundreds of times to save money and not destroy the environment with alkaline thow aways..