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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 | NA1250 |
Rated Power | 12V 50Ah (Cells: 3.0V 10Ah; Configuration: 4S5P) |
Energy | 600Wh |
Starting Current | 600CCA |
Standard Charge Voltage | 15.6V (Single Cell: 3.9V) |
Discharge Cut-off Voltage | 8V (Single Cell: 2.0V) |
Max. Charge Current | 50A |
Max. Constant Discharge Current | 100A |
Peak Discharge Current | 200A @5s |
Dimension | 207*175*190mm / 8.2*6.9*7.5in |
Weight | 7.5kg / 16.5lbs |
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. | |
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For high-current engine cranking, sodium-ion batteries provide strong low-temperature discharge capability and high cranking output, while lead-acid batteries remain widely used in conventional starting systems.
Feature | Sodium-Ion | Lead-Acid |
|---|---|---|
Cold Cranking Performance | >80% capacity retention at −20°C; discharge down to −30°C | Starting performance typically decreases as temperature drops |
Cranking Output | 600 CCA with high-rate discharge capability | Mature cranking performance |
Peak Discharge | 200A @ 5s for this model | Depends on battery design |
Cycle Life | Up to 4,000+ cycles under specified conditions | Typically 300–500 cycles |
Weight | 7.5 kg for this 12V 50Ah model | Generally heavier |
BMS | Integrated battery management system | Typically no integrated BMS |
Charging Compatibility | Charging voltage should be checked before replacement | Broad compatibility with conventional 12V systems |
Before replacing a lead-acid cranking battery, check required CCA, case dimensions, terminal layout, charging voltage, and operating temperature.
Choose a model based on the required capacity, cranking current, and peak discharge demand.
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 |
Battery selection should also consider installation dimensions, terminal configuration, charging voltage, and operating temperature.
Polinovel supports OEM sodium-ion cranking battery configurations for different engine-starting systems, installation requirements, and operating conditions.
Capacity, CCA, peak discharge current, and other electrical parameters can be matched to engine-starting requirements.
Battery dimensions, case design, terminal position, and connection layout can be adapted to different installation requirements.
BMS protection parameters and charging requirements can be configured according to the battery system and operating conditions.
Custom labels, product identification, branding, and packaging options are available for OEM customers and distributors.
