characteristic: 1. Using sodium ion batteries, it is highly safe; 2. Under standard conditions, 100% DOD charge and discharge, more than 3000 cycles; 3. Light weight, about 35%-40% of the weight of lead-acid batteries; 4. Can directly replace lead-acid batteries of the same specifications; 5. Battery operating environment temperature range: -40℃ to 80℃ 6. Maintenance-free 7. Built-in BMS (optional voltage equalization, overcharge protection)
