RELiON RB52 52Ah LiFePO4 12.8V Deep-Cycle Lithium Battery


The RELiON RB52 52Ah LiFePO4 12.8V Deep-Cycle Lithium Battery by RELiON Batteries is an industry leading Deep-Cycle Lithium Battery with multiple terminal options to fit your application. Click the Terminal Options Tab for details.

[mas_static_content id=”6895″]

$575.99 $656.95


Enjoy the Power of Lithium with the RELiON RB52 52Ah LiFePO4 12.8V Deep-Cycle Lithium Battery

The RELiON RB52 52Ah LiFePO4 12.8V Deep-Cycle Lithium Battery is a 12V 52Ah lithium marine deep cycle battery. The RELiON RB52 offers abundant power in a small footprint.

This Battery is versatile and compact enough to be used in many marine applications including smaller boats with lower battery requirements, boats that require two of the same batteries and boats with electrical systems designed for just one battery; however, the RELiON RB52 can be also used in the following applications: Aerial Work Platforms, Floor Machines, Recreational Vehicles, Solar Systems, and Camping.

The RELiON RB52 is a lithium iron phosphate (LiFePO4) battery with more power, less weight and up to 10x longer life than its lead-acid counterparts. Lithium is the logical choice for marine applications where you need a longer run time and reliability.

RELiON RB52 Frequently Asked Questions

Can I use my existing lead-acid battery charger (Wet, AGM or Gel) to charge RELiON lithium iron phosphate batteries?

Most likely, yes. Our lithium batteries are very charger-friendly. Most chargers today have a lithium charge profile, which is what we recommend using. AGM or gel charge profile chargers will work with our batteries.

We do not recommend the use of a flooded charge profile with our batteries. These chargers may reach the overvoltage protection limit and disconnect. It won’t damage the battery but will likely result in charger faults.

Can I use my alternator to charge my lithium iron phosphate batteries?

RELiON batteries can be charged with most alternators. Depending on the quality of the alternator, it should work with LiFePO4 batteries. Low quality alternators with poor voltage regulation can cause the BMS to disconnect LiFePO4 batteries. If the BMS disconnects the batteries, the alternator could be damaged. To protect your LiFePO4 battery and alternator please be sure to use a compatible high-quality alternator or install a voltage regulator.

Why are lithium marine batteries better than lead-acid alternatives?

Heavy lead-acid batteries drag your boating speed and performance down. When you have a small boat, a heavy battery also reduces your fuel consumption efficiency. Instead, you need a lightweight marine battery that’s optimized for high performance. Rechargeable deep cycle lithium iron phosphate (LiFePO4) batteries are one-third the weight of lead-acid alternatives. In addition to providing benefits such as higher capacity and more runtime between charging, lithium batteries offer many advantages out on the water due to their lighter weight.

RELiON RB52 52Ah LiFePO4 12.8V Deep-Cycle Lithium Battery | Marine Lithium Batteries

About RELiON Batteries

RELiON lithium batteries provide more energy for high consumption than traditional lead-acid batteries. Lead-acid batteries also need to be maintained. If they are not maintained properly, their life span is shortened. Because lithium batteries require no active maintenance, a one-time purchase guarantees better lifetime value. Contact us for more details.

Weight 13.7 lbs
Dimensions 7.8 × 6.5 × 6.8 in




Terminal Options


CCA Rating


Reserve Capacity (Minutes)

120 / 25A

BCI Group Size


Ah Rating (@100 Hr)


Ah Rating (@20Hr)



Aerial Work Platform, Floor Machine, Marine / RV

Terminal Options Guide

Option Code Description A.K.A.
1 Embedded Low Profile Type M
2 Embedded High Profile
3 Embedded Automotive Post
4 Embedded Universal/Reverse Type J
5 L-Terminal
6 Automotive Post & Stud/Standard Standard
7 Universal
8 Automotive SAE Type A
9 Wingnut
10 Dual Wingnut
11 Stud/Commercial SS Type Commercial SS Type
12 Cable & Plug
13 M8-1.25 Threaded Hole
14 Industrial
15 6mm/8mm Insert Insert
16 Small L-Terminal
17 5/16″-18 Stud & 1/4″-20 Threaded Hole
18 M6-1.0 Threaded Hole
19 Type B1/B2
20 BUS

Advantage Batteries | Terminal Options

Based on 0 reviews

0.0 overall

Be the first to review “RELiON RB52 52Ah LiFePO4 12.8V Deep-Cycle Lithium Battery”

There are no reviews yet.