12V 100Ah LiFePO4 Battery for RV & Marine
The LINEX 12.8V 100Ah LiFePO4 deep-cycle battery provides 1.28kWh for RV, van, marine house-bank, solar and off-grid systems. It supports up to 100A continuous discharge, 14.6V fast charging and a recommended 50A charging current. Its built-in BMS, IP65 enclosure, approximately 10kg weight and 332 × 172 × 218mm case support compact installations where the complete charger, inverter, cable and protection system has been checked for compatibility in advance.
Key Features
- ✓1.28kWh rated energy at 12.8V and 100Ah
- ✓Up to 100A continuous discharge and 1,280W output
- ✓14.6V fast charging with 50A recommended charge current
- ✓Built-in BMS for voltage, current, short-circuit and temperature protection
- ✓IP65 enclosure for dust and water resistance
- ✓6,000-cycle rating at 25°C and 80% depth of discharge
- ✓Approximately 10kg with a 332 × 172 × 218mm case
- ✓Suitable for RV, marine house-bank, solar and off-grid systems
Technical Specifications
| Model | 12.8V 100Ah |
| Operating Voltage Range (V) | 8.8 ~ 14.6 |
| Nominal Voltage (V) | 12.8 |
| Nominal Capacity (Ah) | 100 |
| Minimum Capacity (Ah) | 98 |
| Rated Energy (Wh) | 1280 |
| Maximum Continuous Discharge Power (W) | 1280 |
| Fast Charging Voltage (V) | 14.6 |
| Standby Charging Voltage (V) | 13.5 ~ 13.8 |
| Floating Charging Voltage (V) | 13.5 ~ 13.8 |
| Discharge Low Protection Voltage (V) | 8.8 ~ 10 |
| Standard Charging Current (A) | 20 |
| Recommended Charging Current (A) | 50 |
| Maximum Charging Current (A) | 100 |
| Standard Discharge Current (A) | 50 |
| Maximum Continuous Discharge Current (A) | 100 |
| Internal Resistance (mΩ) | ≤10 |
| Charging Temperature (°C) | 0 ~ 50 |
| Discharge Temperature (°C) | -20 ~ 60 |
| Cycle Life (25°C, 80% DoD) | 6000 |
| Cells Connection Configuration | 4S |
| Dustproof and Waterproof Level | IP65 |
| Weight (kg) | ≈10 |
| Product Size (LWH mm) | 332*172*218 |
Product Details
12.8V 100Ah LiFePO4 deep-cycle battery for RV, marine house-bank, solar and off-grid systems.
What a 12V 100Ah battery will run
Runtimes below assume 80% depth of discharge (about 1280Wh rated, so roughly 1024Wh usable) and a 25°C pack. Real numbers move with temperature, inverter efficiency and how hard the load pulls.
| Load | Typical draw | Approx. runtime at 80% DoD |
|---|---|---|
| LED lighting | 20W | 51 hours |
| 12V compressor fridge | 45W (≈50% duty) | 22 hours continuous, ≈45 hours cycling |
| Water pump | 60W | 17 hours |
| CPAP machine | 30W | 34 hours |
| 1,000W inverter load | ≈93A at 12V | ≈1 hour(s) |
| Trolling motor | ≈50A | ≈1.6 hours at full throttle |
Charging and BMS limits
The pack charges at 14.6V absorption and 13.5–13.8V float, with a 100A BMS limiting continuous output. A lead-acid charger with a fixed 14.4V profile will leave the pack at roughly 90% — usable, but not full; a charger with a lithium profile is the better match.
| Parameter | Value |
|---|---|
| Rated energy | 1280Wh |
| Continuous discharge | 100A continuous (1,280W) |
| Absorption / float | 14.6V / 13.5–13.8V |
| Charging temperature | 0–50°C — BMS blocks charging below 0°C |
| Weight / size | ≈10kg / 332 × 172 × 218 mm |
| Cycle life | ≥6,000 cycles at 80% DoD |
Same capacity in 24V or 48V
If the build runs a 24V or 48V inverter, start with a native pack instead of wiring 12V units in series — native packs ship with one BMS and one set of terminals.
24V 100Ah · 48V 100Ah · All 12V models
Common questions
How long will it run a 12V fridge?
About 22 hours continuous at 45W, or roughly 45 hours in normal cycling. Add 20–30% in hot weather.
Can I mount it on its side?
Install upright. The case and terminal layout are designed for a horizontal base; side mounting puts stress on the lid and can trap heat.
Can I parallel two units?
Yes, for capacity. Use the same model, similar age and state of charge, fuse each positive separately, and keep cable lengths equal.
Does it need a lithium charger?
A charger with a 14.6V lithium profile is ideal. A lead-acid charger will charge it to roughly 90% and must not run desulfation or equalisation modes.
Common FAQs
It can be evaluated for a 12V system only after checking case dimensions, terminals, charger profile, alternator or DC-DC charging, inverter settings, low-voltage protection and maximum current. A similar physical footprint does not confirm electrical compatibility.
The rated energy is 1,280Wh. Actual usable energy and runtime depend on depth of discharge, load current, inverter efficiency, temperature, cable losses and the reserve required for the application. Do not calculate operating time from the Ah rating alone.
The specification lists 14.6V fast charging, 13.5-13.8V standby or float charging, 20A standard current, 50A recommended current and 100A maximum charge current. Confirm that the charger follows these limits before installation.
The battery publishes a maximum continuous discharge current of 100A and maximum continuous power of 1,280W. Check inverter efficiency, surge current, cable size, fuse or breaker rating and BMS limit before selecting the inverter load.
This product page does not publish a cold-cranking rating, so it should be selected for marine house-bank and onboard loads rather than assumed suitable for engine starting. Use a model-specific starting specification where starting duty is required.
Only if the selected model and BMS support the planned configuration. Use identical batteries with matched age and state of charge, equal cable paths and correctly sized protection. Confirm maximum series or parallel quantity before installation.
The specified charging range is 0°C to 50°C and discharge range is -20°C to 60°C. Charging below 0°C is not supported unless the selected configuration provides suitable low-temperature charging protection.
Documentation for UN38.3, CE, RoHS and FCC review is available, with a 5-year warranty. Confirm destination-market requirements and provide the application, quantity, charging system, installation environment and destination with the inquiry.
RV, Marine & Trolling Resources
Use these application pages and guides to check voltage, energy use, charging compatibility, current limits and installation space before selecting a battery.