The RB52-LT is a 12V 52Ah lithium battery and is part of RELiON's Low-Temperature Series. This compact and powerful lithium iron phosphate battery is specially designed for cold weather performance. RELiON's LT Series batteries can safely charge at temperatures down to -20C (-4F) using a standard charger. The system features proprietary technology which draws power from the charger itself, uniformly heating the cells within the battery to 41F (5C), so that it can be charged at its full recommended current. LT batteries require no additional components such as heating blankets.
The entire process of heating and charging with the LT Series is completely seamless. Simply plug the battery into the regular lithium charger and the internal heating and monitoring system takes care of the rest. Because it takes time to heat the cells, the charging process in below-freezing temperatures could take a little longer.
The Low-Temperature Series battery has the same size and performance as other RELiON batteries but can safely charge when temperatures drop as low as -20C using a standard charger. The RB52-LT is a perfect choice for use in off-grid solar, remote monitoring, and in any application where charging in colder temperatures is necessary.
Product Specifications - Voltage: 12.8V
- Amp Hours: 52Ah
- Product Specifications | Download
Dimensions & Weight - Length: 7.8 in (197 mm)
- Width: 6.5 in (166 mm)
- Height: 6.8 in (173 mm)
- Weight: 14.1 lbs (6.38 kg)
Applications - Backup Power
- Marine
- Recreational Vehicles
- Solar
- Camping
| ELECTRICAL SPECIFICATIONS |
| Nominal Voltage | 12.8 V |
| Nominal Capacity | 52 Ah |
| Capacity @ 25A | 120 min |
| Energy | 640 |
| Resistance | ?50 m? @ 50% SOC |
| Efficiency | 99% |
| Self Discharge | <3% per Month |
| Maximum Modules 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 | IP66 |
| Cell Type - Chemistry | Cylindrical - LiFePO4 |
| DISCHARGE SPECIFICATIONS |
| Maximum Continuous Discharge Current | 50 A |
| Peak Discharge Current | 100 A (7.5 s 2.5 s) |
| BMS Discharge Current Cut-Off | 150 A 20 A (10 5 ms) |
| Recommended Low Voltage Disconnect | 11 V |
| BMS Discharge Voltage Cut-Off | 9.2 V (2.3 0.1 vpc) (140 60 ms) |
| Reconnect Voltage | 10 V (2.5 0.1 vpc) |
| Short Circuit Protection | 200-600 ?s |
| CHARGE SPECIFICATIONS |
| Recommended Charge Current | 2.5 A - 25 A |
| Maximum Charge Current | 50 A |
| Charge Current 14 to 32 F (-10 to 0 C) | ?0.1 C |
| Charge Current -4 to 14 F (-20 to -10 C) | ?0.05 C |
| 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 | 14.6V (3.65 0.05 vpc) |
| Balancing Voltage | 14.4 V (3.6 0.025 vpc) |
| TEMPERATURE SPECIFICATIONS |
| Discharge Temperature | -4 to 140 F (-20 to 60 C) |
| Charge Temperature | -4 to 113 F (-20 to 45 C) |
| Storage Temperature | 23 to 95 F (-5 to 35 C) |
| BMS High Temperature Cut-Off | 176 F (80 C) |
| Reconnect Temperature | 122 F (50 C) |
| HEATING ELEMENT SPECIFICATIONS |
| Heating Temperature Range | -4 to 41 F (-20 to 10 C) |
| Heating Time | 1 hr @ 4 A |
| COMPLIANCE SPECIFICATIONS |
| Certifications | UN38.3 (battery) |
| CE (battery) |
| UL1642 (cells) (File# MH64523) |
| IEC62133 (cells) |
| Shipping Classification | UN 3480, CLASS 9 |
