Sodium Ion Battery
Series and Parallel
Chargeable
Medium Discharge Rate
Medium
Battery
Car/Boat/Car Starting
Support
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12V 40Ah Na+ Battery for Car/Boat/Car Starting Sodium ion Battery Common customization:
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The 12V 40Ah Na⁺ sodium-ion battery is an advanced starting power solution designed for cars, boats, and other engine starting applications. Using innovative sodium-ion (Na⁺) technology, this battery delivers reliable cranking power, excellent safety, and strong performance in low-temperature environments, making it a modern alternative to traditional lead-acid starter batteries.
Reliable 12V Starting Power
Provides strong and stable output for quick and dependable engine ignition.
Advanced Sodium-Ion Technology
Utilises abundant sodium resources, offering a more sustainable and cost-effective alternative to lithium and lead-acid batteries.
Excellent Low-Temperature Performance
Maintains reliable starting performance in cold climates where conventional batteries often struggle.
High Safety & Thermal Stability
Sodium-ion chemistry is inherently stable with low risk of thermal runaway or fire.
Fast Charging Capability
Supports rapid charging and quick energy recovery.
Lightweight & Durable Design
Lighter than traditional lead-acid batteries while offering improved durability and vibration resistance.
Maintenance-Free Operation
No electrolyte refilling or regular maintenance required.
| Items | Parameter | |
| Battery model | MC-SIB12230P | |
| Nominal voltage | 12.4V | |
| Minimum capacity | 40Ah@25ºC,C10 | |
| Charging voltage | 16V | |
| Discharging cut-off voltage | 8V | |
| Standard charging | 0.2C /14.4V | |
| Max charging | 1.0C /14.4V | |
| Standard discharging | 1C/8V | |
| Max discharging | continuous discharge | 1.0C/8V |
| non-continuous discharge | 2.0C/8V | |
| Operation voltage | 8~16V | |
| Operating temperature | Charging: 0°C ~ 45°C | |
| Discharging: -30°C ~60°C | ||
| Storage (At 50% SOC and specified temp, recoverable capacity in % vs time ) | -10ºC~25ºC | (12 months ≥85% ) |
| -10ºC ~45ºC | (6 months ≥85% ) | |
| -10ºC~55ºC | (1 month ≥90% ) | |
| 20±5ºC is the recommended storage temperature | ||
| Visual Inspection | There should not be any remarkable scratches, cracks, bolts, cauterization, deformations, swelling, leakage and so on the surface of the cell. | |
| Self-discharge Rate | <2% per month | |

Detailed Photos

Why choose us
Compare sodium-ion vs lithium-ion batteries, including energy density, low-temperature performance, cost, safety, cycle life, supply chain and applications.
A sodium-ion battery is a rechargeable battery that uses sodium ions as charge carriers instead of lithium ions. This practical guide explains how sodium-ion batteries work, their main components, advantages and limitations, and how they compare with lithium-ion batteries in energy density, low-temperature performance, cost, supply-chain considerations, and manufacturing maturity. It also explores potential applications in solar and energy storage systems, backup power, low-temperature environments, electric vehicles, and compact battery packs, while explaining why sodium-ion technology should be viewed as a complementary battery chemistry rather than a universal replacement for lithium-ion.
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