RELiON Deep Cycle Lithium Batteries
RB20 12V 20Ah LiFePO4 Battery
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This 12V 20Ah lithium battery is powerful yet compact enough to fit in many deep cycle applications. The RB20 is a lithium iron phosphate (LiFePO4) battery with more power, less weight and lasts much longer than its lead-acid counterparts. It’s longer life span provides exceptional lifetime value. The 20 ah of capacity provides ample power for high amp draw electronics for times when you need a longer run time. It’s suitable in many applications where you need a long lifespan and quick charge capability or in outdoor/recreational use where lighter weight and capacity are key. It’s commonly used in the following applications: fishing electronics, robotics, solar lighting, remote power, outdoor adventures and other deep cycle applications.
RELiON lithium batteries provide more energy for high consumption than traditional lead-acid batteries. They also offer ultra-fast charging and discharging, high efficiency and a longer cycle life – plus no maintenance!
Not all lithium batteries are created equal. All RELiON Batteries use the safest and most stable components, including a LiFePO4 cathode and a built-in Battery Management System (BMS). The BMS ensures a long lifetime, safe handling – and high-accuracy State of Charge (SOC) calculations.
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: 5.6 lbs (2.55 kg)
APPLICATIONS
- Marine
- Solar
- Camping
PRODUCT REVIEWS
Frequently Asked Questions
DATA SHEET
DOWNLOAD PDFElectrical Specifications |
|
|---|---|
| Nominal Voltage | 12.8 V |
| Nominal Capacity | 20 Ah |
| Capacity @ 25A | 48 min |
| Energy | 256 Wh |
| Resistance | ≤60 mΩ @ 50% SOC |
| Efficiency | 99% |
| Self Discharge | <3% per Month |
| Maximum Modules in Series | 3 |
Mechanical Specifications |
|
|---|---|
| Dimensions (L x W x H) | 7.1 x 3.0 x 6.7” 181 x 76 x 169 mm |
| Weight | 5.6 lbs (2.55 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 | 70 A ±10 A (20 ±5 ms) |
| Recommended Low Voltage Disconnect | 11 V |
| BMS Discharge Voltage Cut-Off | 8 V (2.0 ±0.08 vpc) (140 ±60 ms) |
| Reconnect Voltage | 10 V (2.5 ±0.10 vpc) |
| Short Circuit Protection | 200-500 µs |
Charge Specifications |
|
|---|---|
| Recommended Charge Current | 1 A - 10 A |
| Maximum Charge Current | 20 A |
| Charge Current 32ºF to 14ºF (0 to -10 ºC) | ≤0.1 C |
| Charge Current -4ºF to 14ºF (-20 to -10 ºC) | ≤0.05 C |
| Recommended Charge Voltage | 14.2 V - 14.6 V |
| BMS Charge Voltage Cut-Off | 15.2 V (3.8 ±0.025 vpc) |
| (1.1 ±0.4 s) | |
| Reconnect Voltage | 14.4 V (3.6 ±0.025 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 | 158 ºF (70 ºC) |
| Reconnect Temperature | 122 ºF (50 ºC) |
| *Refer to charge currents below 0°C (32°F) | |
Compliance Specifications |
|
|---|---|
| Certifications | CE (battery) |
| UN38.3 (battery) | |
| UL1642 & IEC62133 (cells) | |
| Shipping Classification | UN 3480, CLASS 9 |
PERFORMANCE CHARACTERISTICS
I have had this 20 ah battery for about 4months and it's doing a very good job for a small battery it runs a 15 QT 12volt compressor frig for about 12 hrs and I'm very impressed with it so far