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Polinovel NA Series sodium-ion batteries deliver breakthrough innovation that blends cost-efficiency, safety and high performance. Engineered for versatility, our sodium-ion technology seamlessly supports demanding industrial, commercial, and household applications—offering a safer alternative to conventional batteries.
Enhanced Safety
Featuring a non-flammable electrolyte and advanced thermal management, our sodium-ion batteries effectively prevent thermal runaway and ensure reliable, worry-free operation.
Exceptional Low-Temperature Performance
Polinovel sodium-ion batteries perform reliably across a wide temperature range—from -30°C to 65°C. With over 80% capacity retention at -20°C, our batteries are ideally suited for demanding environments and extreme climates.
Cost-Effective Durability
Delivering over 4000 cycles with 80% capacity retention, Polinovel sodium-ion batteries offer decade-long reliability. Their extended lifespan and low maintenance needs significantly reduce life cycle costs, providing long-term savings and exceptional value.
Versatile Applications
With outstanding rate capability and superior performance in low temperatures, Polinovel sodium-ion batteries are the ideal solution for reliable and efficient starting in cars, motorcycles, and marine equipment. Plus, our batteries power a wide range of high-demand applications, including forklifts, golf carts, RVs, industrial backup power for factories, data centers, and telecom towers.
Specification
Model | NA1270 |
Rated Power | 12V 70Ah (Cells: 3.0V 10Ah; Configuration: 4S7P) |
Energy | 840Wh |
Starting Current | 800CCA |
Standard Charge Voltage | 15.6V (Single Cell: 3.9V) |
Discharge Cut-off Voltage | 8V (Single Cell: 2.0V) |
Max. Charge Current | 70A |
Max. Constant Discharge Current | 100A |
Peak Discharge Current | 200A @5s |
Dimension | 278*175*188mm / 11*6.9*7.4in |
Weight | 11.5kg / 25.4lbs |
Cycle Life | ≥2500 (1C@DOD100%); ≥4000 (0.2C@DOD100%) |
Charge Temperature | -20～60ºC |
Discharge Temperature | -30～65ºC |
Storage Temperature | 0～45ºC |
Remarks: The recommended charge voltage for this sodium ion battery is 15.6V. When using a charging system with a voltage between 13V and 14.6V, the battery can be charged to approximately 85% of its capacity. To reach a full 100% charge, upgrading to a 15.6V charging system or using a dedicated 15.6V charger is recommended. | |
The 12V 70Ah sodium-ion battery is designed for engine-starting applications that require reliable cranking power, short-duration high-current output, and stable low-temperature performance.
This 12V sodium-ion starting battery supports reliable engine cranking for refrigerated trucks, cold-chain vehicles, and other commercial vehicles operating in low-temperature environments.
As a marine starting battery, it provides dependable cranking power for workboats, fishing vessels, and other marine engines that require consistent high-current startup performance.
Suitable as a diesel generator starting battery for backup and standby gensets that require reliable engine startup after long idle periods.
The battery can support pumps, compressors, and other engine-driven industrial equipment that require a high-current engine starting battery for short-duration cranking loads.
For 12V engine cranking, battery selection depends on cold-weather performance, starting output, cycle life, weight, and charging compatibility.
Proven & Widely Compatible
Traditional choice for conventional 12V engine-starting systems.
Cold Weather:
Performance declines as temperature falls
Cranking:
Proven starting technology
Cycle Life:
Typically 300–500 cycles
Weight:
Generally heavier
Charging:
Broad compatibility with conventional 12V systems
Lightweight & Long-Life
Suitable where low weight and extended cycling are important.
Cold Weather:
Performance depends on lithium chemistry and battery design
Cranking:
High output with a properly designed starting pack
Cycle Life:
Typically 3,000–5,000 cycles
Weight:
Typically the lightest option
Charging:
Requires a compatible charging profile
Strong Cold-Weather
Designed for reliable starting and cycling in demanding temperature conditions.
Cold Weather:
>80% capacity retention at −20°C
Operating Range:
Discharge down to −30°C
Cranking:
800 CCA for this 12V 70Ah model
Cycle Life:
Up to 4,000+ cycles
Battery Management:
Integrated BMS
For cold-weather cranking and frequent cycling, sodium-ion battery offers a strong balance of low-temperature performance, starting capability, and cycle life. Before replacing an existing battery, always check the required CCA, battery dimensions, terminal layout, and charging compatibility.
Choose the right model based on capacity, required CCA, and peak starting current.
Model | Capacity | Starting Current | Peak Discharge | Selection Guide |
50Ah | 600 CCA | 200A @ 5s | Compact option for lower starting-current requirements | |
60Ah | 800 CCA | 200A @ 5s | Higher cranking output with moderate capacity | |
70Ah | 800 CCA | 200A @ 5s | More capacity while maintaining 800 CCA | |
80Ah | 900 CCA | 400A @ 5s | Higher cranking and peak-current demand | |
90Ah | 1000 CCA | 400A @ 5s | Higher starting-current requirement | |
100Ah | 1200 CCA | 400A @ 5s | Highest capacity and cranking output in this range |
For projects where the standard 12V 70Ah battery configuration does not fully match the existing starting system, Polinovel can adapt the battery around cranking demand, installation space, electrical interface, and charging conditions.
Provide the current voltage, capacity, CCA, case dimensions, terminal layout, and charging-system information for initial battery matching.
The required starting current, operating temperature, and engine load are evaluated to determine a suitable sodium-ion cranking battery configuration.
Case dimensions, terminal position, polarity, and connection layout can be adjusted for lead-acid battery replacement or new equipment integration.
After the electrical and mechanical specifications are confirmed, Polinovel can support custom labeling, product identification, packaging, and other OEM battery requirements.
Need a custom 12V sodium-ion battery for an existing starting system?
