Cold Weather Lithium Batteries
RB20-LT 12V 20Ah LiFePO4 Battery
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The RB20-LT is a 12V 20Ah lithium battery and is part of RELiON’s Low Temperature Series. This lithium iron phosphate battery is specially designed for cold weather performance. RELiON’s LT Series batteries can safely charge at temperatures down to -20°C (-4°F) using a standard charger. The system features proprietary technology which draws power from the charger itself, requiring no additional components.
The entire process of heating and charging with the LT Series is completely seamless. Simply plug the battery in to 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 RB20-LT is ideal in a variety of applications including small solar energy systems, remote monitoring, LED lighting and traffic control cameras. It has all the benefits of lithium batteries including installation flexibility and no maintenance, with the added ability to charge in cold weather climates. It’s equipped with an M6 terminal type and a built-in battery management system (BMS).
PRODUCT SPECIFICATIONS
- Voltage: 12.8V
- Amp Hours: 20Ah
DIMENSIONS & WEIGHT
- Length: 7.1 in (181 mm)
- Width: 3 in (76 mm)
- Height: 6.7 in (169 mm)
- Weight: 6.6 lbs (3 kg)
APPLICATIONS
- Solar
- Camping
PRODUCT REVIEWS
DATA SHEET
DOWNLOAD PDFElectrical Specifications |
|
|---|---|
| Nominal Voltage | 12.8V |
| Nominal Capacity | 20 Ah |
| Capacity @ 25A | 48 min |
| Energy | 256 Wh |
| Resistance | ≤45 mΩ @ 50% SOC |
| Efficiency | 99% |
| Self Discharge | <3% per Month |
| Maximum Modules in Series | 1 (Single Use) |
Mechanical Specifications |
|
|---|---|
| Dimensions (L x W x H) | 7.1 x 3.0 x 6.7” (181 x 76 x 169 mm) |
| Weight | 6.6 lbs (3 kg) |
| Terminal Type | M6 x 1.0 |
| Terminal Torque | 35 - 44 in-lbs (4 - 5 N-m) |
| Case Material | ABS |
| Enclosure Protection | IP66 |
| Cell Type - Chemistry | Cylindrical - LiFePO4 |
Discharge Specifications |
|
|---|---|
| Maximum Continuous Discharge Current | 20 A |
| Peak Discharge Current | 40 A (7.5 s ±2.5 s) |
| BMS Discharge Current Cut-Off | 50 A ±8 A (32 ±8 ms) |
| Recommended Low Voltage Disconnect | 11V |
| BMS Discharge Voltage Cut-Off | 8V (2.0 ±0.08 vpc) (20 ±8 ms) |
| Reconnect Voltage | 9.04V (2.26 ±0.34 vpc) |
| Short Circuit Protection | 100-600 μs |
Charge Specifications |
|
|---|---|
| Recommended Charge Current | 1 A - 10 A |
| Maximum Charge Current | 20 A |
| Recommended Charge Voltage | 14.2V - 14.6V |
| BMS Charge Voltage Cut-Off | 15.6V (3.9 ±0.025 vpc) (1 ±0.3 s) |
| Reconnect Voltage | 14.6V (3.8 ±0.050 vpc) |
| Balancing Voltage | 14.4V (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 - Discharge | 185 ºF (85 ºC) |
| BMS High Temperature Cut-Off - Charge | 140 ºF (60 ºC) |
| Reconnect Temperature | 122 ºF (50 ºC) |
Heating Element Specifications |
|
|---|---|
| Heating Temperature Range | -4 to 50 ºF (-20 to 10 ºC) |
| Heating Time | Approximately 1 hr @ 3 A |
Compliance Specifcations |
|
|---|---|
| Certifications | CE (battery) |
| UL1642 (cells) (File# MH64523) | |
| IEC62133 (cells) | |
| Shipping Classification | UN 3480, CLASS 9 |
Performance Characteristics
Frequently Asked Questions
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