RB52
12V 52Ah
Deep Cycle Lithium Battery
RB52
12V 52Ah
Deep Cycle Lithium Battery
The RB52 is a lithium iron phosphate 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.
$469.95
ENGINEERED IN THE USA
US-BASED SUPPORT
10 YEAR WARRANTY
Features
Lightweight
RELiON lithium batteries provide more power than lead-acid batteries and are typically half the weight. Boosting both performance and agility on the water.
More Usable Capacity
Lead-acid batteries are typically sized up to two times your energy needs to account for extended periods without sun and less usable energy with higher rates of discharge. Plus, you are typically cautioned to limit your use to 50% of the rated capacity, as using more can significantly reduce performance. Lithium batteries provide 100% of their rated capacity, regardless of the rate of discharge. And, you can use it all and still get substantially longer cycle life.
Long Life
RELiON lithium batteries provide up to 10 times longer life than lead-acid batteries, and they still provide 80% of the rated capacity after 3,500 cycles.
Fast Charging
RELiON lithium batteries charge much faster than traditional lead-acid batteries, and they’re packed with more usable energy and up to 10 times longer life so you’re always ready to go!
Partial State of Charge Tolerant
Partial state of charge, known as PSOC, which is a killer of lead-acid batteries, does not affect performance or battery life of a lithium battery. Sometimes batteries don’t get fully charged, or they regularly operate in a partial state of charge. Either way, you can count on RELiON lithium batteries living a long and productive life.
Temperature Tolerant
Lithium batteries can handle a wide variety of conditions and are even 2.5x more efficient at low temperatures than lead-acid while being able to safely operate up to 149°F (65°C).
Eco-Friendly & Safe
RELiON lithium batteries are the ultimate clean energy. No gassing, no fumes, and no pollution. Enjoy reliable power, while protecting the environment, using these non-hazardous batteries.
Specifications
Electrical Specifications |
|
|---|---|
| Nominal Voltage | 12.8 V |
| Nominal Capacity | 52 Ah |
| Capacity @ 25A | 120 min |
| Energy | 640 Wh |
| Resistance | ≤50 mΩ @ 50% SOC |
| Efficiency | 99% |
| Self Discharge | <3% per Month |
| Maximum Batteries Connected in Series | 4 |
Mechanical Specifications |
|
|---|---|
| Dimensions (L x W x H) | 7.8 x 6.5 x 6.8” (197 x 166 x 173 mm) |
| Weight | 13.7 lbs (6.2 kg) |
| Terminal Type | M8 x 1.25 x 12mm |
| Terminal Torque | 80 - 100 in-lbs (9 - 11 N-m) |
| Case Material | ABS |
| Enclosure Protection (Waterproof Rating) | IP67 |
| Cell Type - Chemistry | Cylindrical - LiFePO4 |
Discharge Specifications |
|
|---|---|
| Maximum Continuous Discharge Current | 50 A |
| Peak Discharge Current | 100 A (7.5 s ±2.5 s) |
| Discharge Over-Current Protection | 170 A ±20 A (10 ±5 ms) |
| Recommended Low Voltage Disconnect | 11.0 V |
| Discharge Under-Voltage Protection | 9.3 V (2.325 ±0.08 vpc) (140 ±60 ms) |
| Reconnect Voltage | 10.5 V (2.625 ±0.1 vpc) |
| Short Circuit Protection Response Time | About 100μs |
Charge Specifications |
|
|---|---|
| Recommended Charge Current | 2.5 A - 25 A |
| Maximum Continuous Charge Current | 50 A |
| Charge Current 32º to 14ºF (0 to -10 ºC) | ≤0.1 C (5 A) |
| Charge Current -4º to 14ºF (-20 to -10 ºC) | ≤0.05 C (2.5 A) |
| Recommended Charge Voltage | 14.2 V - 14.6 V |
| BMS Charge Voltage Cut-Off | 15.4 V (3.85 ±0.025 vpc) (1.1 ±0.4 s) |
| Reconnect Voltage | 14.5 V (3.62 ±0.05 vpc) |
| Balancing Voltage | 14.4 V (3.6 ±0.025 vpc) |
Temperature Specifications |
|
|---|---|
| Discharge Temperature | -4 to 140 ºF (-20 to 60 ºC) |
| Charge Temperature* | -4 to 113 ºF (-20 to 45 ºC) |
| Storage Temperature | 23 to 95 ºF (-5 to 35 ºC) |
| BMS High Temperature Cut-Off | 176 ºF (80 ºC) |
| Reconnect Temperature | 122 ºF (50 ºC) |
| *Refer to charge currents below 0°C (32°F) | |
Compliance Specifications |
|
|---|---|
| Certifications | UKCA & CE (battery) |
| UN38.3 (battery) | |
| UL1642 (cells) (File# MH64523) | |
| IEC62133 | |
| Shipping Classification | UN 3480, CLASS 9 |
Performance Characteristics
Reviews
Clint B.
Oct 29th, 2020
Grabbed 3 of these RB50 Batteries to run my trolling motor. I was mostly looking to shed some weight from the boat and they did exactly that!! Removed 170lbs from the back of the boat and she comes up on pad like never before!!
Lester R.
Jul 24th, 2020
So far they are working great. Very good tech support.
Documentation
Other Documentation
The RB52 Is Great For Powering
Marine
RV
Related Products
Understanding Battery Terms
Understanding the basics of battery ratings and terminology is important when comparing and selecting the right type and number of batteries for your application to ensure you have enough energy to meet your energy goals.
How To Successfully Charge RELiON Batteries
There are many factors to keep in mind when discussing charging - how to charge, what charger is necessary, and more.
We're Invested In Our Lithium Iron Phosphate Batteries
Grabbed 3 of these RB50 Batteries to run my trolling motor. I was mostly looking to shed some weight from the boat and they did exactly that!! Removed 170lbs from the back of the boat and she comes up on pad like never before!!
So far they are working great. Very good tech support.