*High Capacity 3750mWh Batteries - The voltage of the rechargeable aa batteries is 1.5v and with high capacity 3750mWh. Constant 1.5v output can make the devices work more stable; High capacity makes it long lasting and durable. *Up to 1000 Cycles - LeWattgend rechargeable USB lithium AA batteries charge with USB C cable, no need adapter, convenient to use, can be reach to 1000 cycles(please charge it once at least every 30 days to keep batteries active). *4 in 1 Type C Cable - You can charge the 4 batteries at the same time with the included 4-in-1 type c cable, just plug the charging cable into USB port of socket, computer, laptop, car. *Quick Charge & OEM/ODM Service - AA lithium rechargeable battery charge faster, Much faster than traditional rechargeable batteries, in about 120 minutes; Convenient charging, no need the traditional AA battery charger or adapter any more.OEM/ODM Service is also welcome, just contact us! *Widely Use - AA Batteries are rechargeable and reusable. Ideal for digital cameras, remote controls, toys, hand held games, Bubble Machines, Toy guns, shavers, Electric Toothbrush, Photography lights and more for high current applications. REMEMBER - The more you use rechargeable batteries, the better for the environment. Once the lifespan of a rechargeable battery is over, they can be taken to LOWE'S, HOME DEPOT, or STAPLES for recycling! Be Kind to our Planet!