| Metric | Sodium-Ion | LFP (LiFePO₄) | Lead-Acid | |
| Cold-Weather Discharge | Down to −40°C | Model-dependent | Reduced capacity in cold | |
| Cycle Life | 8000 cycles | 3000–5000 cycles | 500–1500 cycles | |
| Energy Density | Chemistry-dependent | Generally high | Generally low | |
| Maintenance | No watering | No watering | Watering for flooded types | |
| Storage Applications |
| Daily solar storage, compact systems | Backup power, budget-led projects |
Passenger Vehicles
Light Commercial Vehicles
Marine Engine Starting
Generators & Utility Equipment
From everyday commuting to cold-morning starts, passenger cars need dependable cranking power. Polinovel's 12V sodium-ion batteries offer different configurations to match engine starting demands, installation space, and charging requirements.
For vans, pickups, and service vehicles that rely on frequent daily starts, choosing the right battery goes beyond capacity. Polinovel offers sodium-ion options to match cranking requirements, vehicle electrical systems, and operating conditions.
Marine engines need strong cranking power for dependable starts, even after periods between trips. Polinovel's 12V sodium-ion batteries can be evaluated for compatible marine applications based on starting current, terminal layout, and onboard charging systems.
Generators, water pumps, and other engine-driven equipment require reliable starting power when needed. Polinovel sodium-ion batteries provide flexible capacity and cranking options for compatible equipment operating across different environments.
Cold weather places additional demands on engine-starting batteries. Polinovel sodium-ion technology is designed to maintain useful discharge performance in sub-zero conditions, helping support engine starts where conventional battery performance may decline.
Polinovel works with battery distributors, equipment manufacturers, and OEM customers to develop sodium-ion starting battery solutions for different market and application requirements.
Configure battery capacity and starting performance according to specific engine requirements.
Adapt enclosure dimensions, terminal positions, and connection layouts for installation requirements.
Adjust battery protection and charging parameters for compatible electrical systems.
Support custom labeling, product identification, packaging, and technical documentation.
Can sodium-ion batteries replace lead-acid starting batteries?
Sodium-ion batteries can be considered for compatible engine-starting applications. Before replacement, check the required CCA, battery dimensions, terminal configuration, charging voltage, and operating temperature.
Are sodium-ion batteries suitable for start-stop cars?
Sodium-ion batteries may be evaluated for start-stop applications, but compatibility is not universal. The battery must be validated against the vehicle's repeated starting requirements, charging system, battery monitoring, and control strategy.
How do sodium-ion batteries perform in cold weather?
Selected Polinovel 12V sodium-ion starting batteries retain more than 80% of their capacity at −20°C and support discharge temperatures down to −30°C. Actual cranking capability depends on battery configuration and operating conditions.
Can I use a standard 12V lead-acid battery charger?
Charging compatibility depends on the charger's output voltage and charging profile. Polinovel's current 12V starting battery models specify a recommended charging voltage of 15.6V. Always check compatibility before using an existing charger or vehicle charging system.
What should I consider when selecting a sodium-ion starter battery?
Start with the required cranking current and capacity. Then verify battery dimensions, terminal layout, charging compatibility, temperature range, and any vehicle-specific battery management requirements.
