NIMH 4/A 2100mAh rechargeable battery 1 Volt:1.2V 2 Capacity:2100mAh 3 Size:D17*H40mm  17430 17400 4 Cycle life: 500-1000 cycles                                    

5 DIY Design

1. Long operation life: Cycle life is more than 600 times in normal conditions; 2. Wide operation range: It can be operated in the environment of -18~50centigrade; 3. Small self discharge: Load holding capacity is batter than IEC standard; 4. Strong emergency adaptability: It can charge quickly in 1~6h in emergency conditions; 5. Good safety and reliability: Each battery has a safety valve, so it can have high safety and reliability during long-period operation process or in major failures.