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12v Car Battery

POEAE 5000 Cycles Sodium Ion Car Starter Rechargeable Battery 12V 40Ah High Discharge Rate IP67 Waterproof

LL-1240-B
12V 40Ah sodium-ion battery for automotive start-stop systems — lightweight, fast-charging, and long-lasting. Superior low-temperature performance, wide charge/discharge range, and enhanced safety over lead-acid. Eco-friendly & maintenance-free.
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Battery Type :Sodium Ion 12v 40Ah 480Wh Car start-stop Battery 

🔋Charging voltage :15.8v 

🔋Dicharging voltage: 8v

🔋 charging current :40A  (max continuous discharge current ≤100A)

🔋discharge current :40A  (max continuous charge current ≤100A)

🔋Discharge temperature: -40°C-85°C

🔋Weight:7.8KG , waterproof : IP67

🔋Battery size :358*177*188mm

🔋Monthly self-discharge current :≤6.4%

As an advanced alternative to lead-acid and AGM, sodium-ion (Na-ion) start-stop batteries deliver superior sustainability,over 5000 cycles and operates at -40°C with 85% capacity retention.

Why  will we choose the sodium ion battery ?

🌡️Excellent low-temperature performance – Maintains high discharge efficiency even at -20°C or lower, ensuring reliable starting.


🌡️High safety – Better thermal stability than lithium batteries, low risk of thermal runaway, overcharging, or short circuits.


🌡️Fast charging capability – Supports high-rate charge/discharge, responds quickly to frequent start-stop cycles.


🌡️Cost advantage – Abundant and widely distributed sodium resources, much lower material cost than lithium, suitable for large-scale use.


🌡️Environmentally friendly – Contains no scarce metals like cobalt or lithium, reducing environmental impact in mining and disposal.


🌡️Long cycle life – Provides higher cycle numbers under start-stop conditions compared to traditional lead-acid batteries.

⚡Custom sizes and OEM/ODM service available for wholesalers and fleets