RB52-LT
12V 52Ah
Cold Weather Lithium Deep Cycle Battery
RB52-LT
12V 52Ah
Cold Weather Lithium Deep Cycle Battery
The RB252-LT LiFePO4 battery is specifically designed for cold weather performance, as it can safely charge at temperatures down to -20°C (-4°F). The RB52-LT is ideal in a variety of applications including off-grid solar, remote monitoring, and in any application where charging in colder temperatures is necessary.
$499.95
ENGINEERED IN THE USA
US-BASED SUPPORT
10 YEAR WARRANTY
Features
Cold Weather Ready
Safely charges in freezing climates (-20°C or -4°F).
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.
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 @ 25 A | 120 min |
| Energy | 640 |
| Resistance | ≤50 mΩ @ 50% SOC |
| Efficiency | 99% |
| Self Discharge | <3% per Month |
| Maximum Batteries Connected in Series | 1 (Single-use) |
MECHANICAL SPECIFICATIONS |
|
|---|---|
| Dimensions (L x W x H) | 7.8 x 6.5 x 6.8” (197 x 166 x 173 mm) |
| Weight | 14.1 lbs (6.38 kg) |
| Terminal Type | M8 x 1.25 x 12mm |
| Terminal Torque | 80 - 100 in-lbs (9 - 11 N-m) |
| Case Material | ABS |
| Enclosure Protection | 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 | 150 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 100 μs |
CHARGE SPECIFICATIONS |
|
|---|---|
| Recommended Charge Current | 2.5 A - 25 A |
| Maximum Continuous Charge Current | 50 A |
| Charge Current 14 to 32 ºF (-10 to 0 ºC) | ≤0.1 C (5 A) |
| Charge Current -4 to 14 ºF (-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 | 14.5V (3.62 ±0.5 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) |
| Recommended 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) |
HEATING ELEMENT SPECIFICATIONS |
|
|---|---|
| Heating Temperature Range | -4 to 41 ºF (-20 to 10 ºC) |
| Heating Time | 1 hr @ 4 A |
COMPLIANCE SPECIFICATIONS |
|
|---|---|
| Certifications | UN38.3 (battery) |
| UKCA & CE (battery) | |
| UL1642 (cells) (File# MH64523) | |
| IEC62133 (cells) | |
| Shipping Classification | UN 3480, CLASS 9 |
Performance Characteristics
Reviews
Documentation
Other Documentation
Frequently Asked Questions
The RB52-LT Is Great For Powering
Backup Power
Marine
RV
Related Products
More about RELiON's LT Series and how to use our batteries in colder temperatures.
How Cold Weather Impacts Lithium Batteries
Cold weather impacts not only lithium-ion batteries, but all batteries, and knowing about the impacts that weather has on your battery can help you make the best choice when purchasing one - from longevity to cost savings to daily performance.
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