VINTRONS 1.5V AA Rechargeable Batteries Pack of 4 Li-ion 1000mAh USB Rechargeable AA Battery ECO-Friendly

High 1.5V Constant Voltage - Our USB rechargeable AA lithium battery can meet 1.5V constant for supporting high speed output, it makes charging more efficient; Excellent USB Rapid Charge - Our USB rechargeable AA lithium battery can be full charged within 1 hours; 5000 cycles Longer Battery Life - New generation USB AA rechargeable lithium battery can deeper cycles up to 5000 cycles without memory effect, and service for your devices over 3 years. But the battery cycles of nickel-metal hydride just only have 500 times, the other lithium polymer battery just only have 2000 cycles life. It greatly reduce the frequency and cost of battery replacement when use our new USB rechargeable AA lithium battery. High Quality & Smart IC - We integrated smart IC for our USB rechargeable aa lithium battery. It can not only intelligently strengthen the steady current technology and ensure the safety of lithium battery, but also enhance the charging efficiency of the lto battery. The USB AA rechargeable lithium battery is New & Green Energy that is more safer and environmentally friendly.