12V 50Ah Sodium-ion car starter battery Model: TP-NA1250 12V 50Ah 800CCA Car Starter Battery Nominal Voltage: 12.2V Nominal Capacity: 50Ah Nominal Energy: 610Wh Peak Discharge Current (1s): 800A Discharging Temp Range: -40°C ~ 80°C Cycle Life (80% DOD): >3000 cycles System Weight: ~8.0kg Product Dimensions: 244mm × 176mm × 190mm https://www.topakpowertech.com/sodium-ion-car-starter-battery/12v-50ah-car-starter-battery