HAKADI Sodium ion 18650 3V 1300mAh Battery Discharge 12C Na ion battery Rechargeable Cell For E-bike Power Tools DIY 12V 24V 48V 72V Battery Pack Sodium ion 18650 1300mAh（Price With Shipping Fee）:200PCS equalization accuracy ±5mV

equalization accuracy ±5mV

individual cell over voltage protection

But it will not effect the battery normal use

Rated capacity: 20Ah

Storage Temperature Range: -5℃~28℃

HAKADI Sodium ion 18650 3V 1300mAh Battery Discharge 12C Na ion battery Rechargeable Cell For E-bike Power Tools DIY 12V 24V 48V 72V Battery Pack Sodium ion 18650 1300mAh（Price With Shipping Fee）:200PCS equalization accuracy ±5mVBattery Specification Ours Na ion 18650 1300mAh BatteryProvide Air Shipping Price With Air Freight Fee "Significantly shortens the shipping time." Warranty The warranty period is 12 months from the date you receive. We only replace new cell for free due to the failure of manufacturing. Before the shipment, we will detected the cell voltage resistance appearance and other issues. we can only ensure that single cell is good before the shipment. When