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
Non-flammable, non-toxic sodium-ion chemistry — zero thermal runaway risk, no acid, no off-gassing. 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, non-flammable, and rated for 4,000+ deep cycles at 80% DOD.
Sodium-ion NFPP cells cannot thermally run away. No fire risk in your RV, boat, or vehicle — even in the event of a short circuit, overcharge, or physical damage. Safe for enclosed spaces where lithium is prohibited.
- Zero thermal runaway incidents to date
- Non-hazardous shipping — air-shippable
- No toxic gas emissions in enclosed spaces
- Safe in bilge compartments and RV cabins
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 Every 12V Application.
From weekend RV trips to year-round marine liveaboards, the Series-S delivers reliable 12V power wherever lead-acid batteries have been used — without the maintenance, weight, or fire risk.
Class A, B & C Motorhomes
House bank replacement for all motorhome classes. No off-gassing in enclosed cabins, no watering, and 4× the cycle life of lead-acid — perfect for full-time RV living.
Sailboats, Powerboats & Fishing Vessels
Starting and deep-cycle house batteries for all vessel types. IP55-rated enclosure handles marine humidity and vibration. Non-toxic — safe in bilge compartments.
Cabins, Tiny Homes & Remote Installations
12V solar storage compatible with all standard MPPT and PWM solar charge controllers. Operates in extreme temperatures where lead-acid fails.
Scooters, Wheelchairs & Light EVs
Power source for mobility scooters, electric wheelchairs, and light electric vehicles. Lighter than lead-acid, longer cycle life, and zero maintenance for daily-use equipment.
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.