12V. Drop-In.
Lead-Acid Free.
Sodium-Ion NFPP | 12V / 30–100Ah | 4,000+ Cycles | −20°C to +60°C
A direct drop-in replacement for 12V lead-acid batteries across RV, marine, off-grid, and mobility applications. Three capacity options — 30Ah, 60Ah, and 100Ah — all sharing the same compact form factor, built-in BMS, and sodium-ion chemistry that eliminates thermal runaway risk, acid leaks, and maintenance watering forever.
Complete 12V Battery System
Everything Included. Nothing to Maintain.
The 12V Series S ships as a complete, ready-to-install battery. Built-in BMS, standard lead-acid terminal posts, and sodium-ion chemistry that never needs watering, equalization, or acid checks — just install and forget.
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Sodium-Ion NFPP Prismatic Cells
Safer chemistry with less explosive properties — no fires seen to date during thermal runaway tests. Safe for enclosed spaces including RV cabins, boat bilges, and enclosed vehicle compartments.
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Built-In BMS — 8 Intelligent Protections
Real-time monitoring of overcharge, overcurrent, overdischarge, overheat, temperature, short circuit, cell balancing, and reverse connection — continuously protecting your battery and connected equipment.
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Compact ABS Enclosure — Standard BCI Footprint
Fits standard 12V battery trays and hold-downs. The 100Ah unit weighs just 8.5 kg — up to 60% lighter than an equivalent lead-acid battery — making installation and handling effortless.
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Standard Lead-Acid Terminal Posts — True Drop-In
Standard M6 terminal posts allow direct replacement of any 12V lead-acid battery with no wiring modifications. Compatible with all standard 12V chargers, inverters, and solar charge controllers.
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Three Capacity Options — 30Ah, 60Ah, 100Ah
Choose the right capacity for your application. Stack multiple units in parallel for larger systems — all three models share the same BMS communication protocol and charging profile for seamless parallel operation.
Why Sodium-Ion for 12V Applications
The End of Lead-Acid.
No Compromise.
Lead-acid batteries require regular maintenance, off-gas hydrogen during charging, and degrade rapidly when left partially discharged. Lithium-ion alternatives carry thermal runaway risk — a serious concern in enclosed RV and marine spaces. The 12V Series S eliminates all these problems: maintenance-free sodium-ion chemistry and rated for 4,000+ deep cycles at 80% DOD.
Safer chemistry with less explosive properties. Safe for enclosed spaces including RV cabins, boat bilges, and enclosed vehicle compartments.
- Zero thermal runaway incidents seen to date
- No fires seen to date and no cell to cell propagation seen to date
- No toxic gas emissions in enclosed spaces
- Safe in bilge compartments and RV cabins
- Next generation chemistries in progress with no thermal runaway design
Operates from −20°C to +60°C — outperforming lead-acid in cold starts and lithium-ion in high-heat environments. Reliable performance whether you're in the Arctic or the desert.
- −20°C to +60°C operating range
- No active thermal management required
- Reliable cold-weather cranking
- Stable in high-heat vehicle compartments
No watering, no equalization charges, no acid spills, no terminal corrosion. The built-in BMS handles cell balancing automatically — your battery is always ready when you need it.
- No watering or equalization required
- No acid leaks or terminal corrosion
- Works with standard 12V chargers
- 10-year design life at 25°C
Technical Specifications
12V Series S — Full Specification
Three capacity options sharing the same chemistry, BMS, and terminal interface. All models are direct drop-in replacements for standard 12V lead-acid batteries.
| Parameter | Series-S 30 | Series-S 60 | Series-S 100 |
|---|---|---|---|
| Nominal Voltage | 12.8V | 12.8V | 12.8V |
| Nominal Capacity | 30 Ah | 60 Ah | 100 Ah |
| Energy | 384 Wh | 768 Wh | 1,280 Wh |
| Max Charge Current | 15A | 30A | 50A |
| Max Discharge Current | 30A | 60A | 100A |
| Peak Discharge Current | 60A (5s) | 120A (5s) | 200A (5s) |
| Cycle Life (80% DOD) | 4,000+ Cycles | ||
| Design Life | 10 Years | ||
| Charge Voltage | 14.6V | ||
| Cut-off Voltage | 10.0V | ||
| Operating Temperature (Charge) | 0°C to +45°C | ||
| Operating Temperature (Discharge) | −20°C to +60°C | ||
| Storage Temperature | −10°C to +35°C | ||
| Self-Discharge Rate | <3% per month | ||
| Cell Chemistry | Sodium-Ion NFPP Prismatic | ||
| BMS Protections | 8 (OVP, UVP, OCP, SCP, OTP, UTP, Balance, Reverse) | ||
| Communication | RS485 / Modbus (optional) | ||
| Weight | 3.2 kg | 5.8 kg | 8.5 kg |
| Dimensions (L×W×H) | 197×132×155 mm | 260×168×210 mm | 328×172×220 mm |
| Terminal Type | Standard M6 Lead-Acid Posts | ||
| Enclosure Rating | IP55 | ||
| Certifications | CE, UN38.3, RoHS | ||
Applications
Built for Cars, Trucks, Off-Road & Beyond
From passenger cars and pickup trucks to ATVs, marine vessels, and remote telecom sites — the Series-S delivers reliable 12V power wherever lead-acid batteries have been used, without the maintenance, weight, or fire risk.
Passenger Cars & Light Trucks
12V auxiliary and starting battery replacement for passenger cars, pickup trucks, and SUVs. Sodium-ion chemistry delivers reliable cold-weather starts and long service life with zero maintenance.
ATVs, UTVs & Off-Road Vehicles
Purpose-built for the vibration, shock, and extreme temperature demands of off-road use. IP55-rated enclosure and safer chemistry make it ideal for trail, agricultural, and utility vehicles.
Marine Vessels & Off-Grid Systems
Starting and deep-cycle house batteries for all vessel types, plus off-grid solar storage. IP55-rated enclosure handles marine humidity and vibration. Safe in bilge compartments.
Telecom Tower Backup Power
Reliable standby power for remote cell towers and telecom infrastructure. Long calendar life, minimal maintenance, and all-weather operation make sodium-ion the ideal lead-acid replacement for off-grid sites.
Get Started
Ready to Replace Your 12V Lead-Acid Battery?
The Series-S is a true drop-in replacement — same terminals, same charger, same wiring. Contact our team to select the right capacity for your application and get a quote.