Using sodium battery cell technology process, high safety Under standard conditions, 100% DOD charging and discharging, exceeding 3000 cycles Built in protection against overcharging and overdischarging Built in cell balancing device Built in emergency start device Bluetooth, GPS and other devices can be optionally selected Lightweight, approximately 35% to 40% of the weight of lead-acid batteries Can replace lead-acid batteries and lithium batteries Wide temperature range: -30 ℃~80 ℃ Maintenance free