ReliOn LiFePO4 Lithium Battery 12V 52Ah LT
ReliOn 12V 52Ah (665Wh) LiFePO4 lithium deep cycle battery, from the low-temperature (LT) series, specially designed to operate in cold climates. Ideal for motorhomes, campers, boats, and small-scale solar installations. Replaces AGM/Gel lead-acid batteries with more usable capacity and far less weight (6.38 kg versus over 15 kg for an equivalent AGM). Compatible with MPPT solar charge controllers and standard 12V inverters.
ReliOn LiFePO4 12V 52Ah LT Lithium Battery: Reliable Performance Even in Cold
The ReliOn RB52-LT is a lithium battery rated at 12V and 52Ah (665Wh) that belongs to the manufacturer's low-temperature (LT) series, designed for those who need a compact, lightweight LiFePO4 battery that keeps operating safely in cold climates. It's a common choice for motorhomes and campers used in winter or mountain areas, as well as for small off-grid solar installations and onboard boats.
Use Cases: When a Low-Temperature Lithium Battery Makes Sense
Motorhome and Camper in Winter
A lithium motorhome battery like this one is especially useful if you travel during winter or in cold regions, since the LT series is designed to better tolerate low charging temperatures than a standard LiFePO4. It powers fridges, LED lighting, and onboard electronics while using practically 100% of its rated capacity.
Small-Scale Solar Installations
With 665Wh of available energy, this solar panel battery is a good choice as a compact battery bank for cabins, sheds, or small off-grid setups, especially in locations with cold winters where a conventional LiFePO4 could limit charging.
Marine Use
Onboard, its low weight (6.38 kg) compared to an equivalent lead battery makes installation easier in tight spaces, such as sailboats or lightweight vessels, without giving up the reliability of a built-in BMS.
Lithium Battery vs. AGM/Gel: Why Choose LiFePO4
Compared to an equivalent AGM or Gel battery, this 12V 52Ah lithium battery offers several advantages: greater usable depth of discharge, far more charge and discharge cycles over its lifespan, much lower weight, and an internal BMS that protects against overcharge, over-discharge, short circuit, and extreme temperatures. The LT series also adds charge management
| Brand | ReliOn |
|---|---|
| Model | RB52-LT |
| Reference | REL-RB52-LT |
| Chemistry | LiFePO4 (Lithium Iron Phosphate) - Low Temperature (LT) series |
| Nominal voltage | 12.8V |
| Nominal capacity | 52Ah |
| Energy | 665Wh |
| Internal resistance | ≤50mΩ @ 50% SOC |
| Charge efficiency | 99% |
| Maximum continuous discharge current | 50A |
| Peak discharge current | 100A for 7.5s ± 2.5s |
| BMS - Discharge cutoff | 9.2V |
| BMS - Overcharge cutoff | 15.4V |
| Recommended charge current | 2.5A - 25A |
| Maximum charge current | 50A |
| Recommended charge voltage | 14.2V - 14.6V |
| BMS - High temperature cutoff | 80°C |
| Discharge temperature | -20°C to 60°C |
| Charge temperature | -20°C to 45°C |
| Storage temperature | -5°C to 35°C |
| Dimensions | 197 x 166 x 173 mm |
| Weight | 6.38 kg |
| Terminals | M8 x 1.25 x 12mm |
| Case material | ABS |
| Protection rating | IP66 |
| Cell type | Cylindrical LiFePO4 |
| Certifications | UN38.3, CE, UL1642, IEC62133 |