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.

€709.00
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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

REL-RB52-LT
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