1. 100% full inspection before shipment, stable quality and reliable performance.

2. Using lead-calcium alloy battery plate, low water loss rate, stable quality, low self-discharge rate. 

3. Complete seal, maintenance-free, low self-discharge rate, good sealing performance. 

4. Low internal resistance, good high rate discharge performance. 

5. Excellent high and low temperature performance, operating temperature range of-30 °C to 50 °C. 

6. Floating Design Life:  3-5 years