RELiON Lithium Deep Cycle Batteries
RB20 12V 20Ah LiFePO4 Battery
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The RB20-X is the smallest battery in the RELiON X-Series. Our X-Series batteries allow for higher peak and higher continuous discharge currents compared to our standard lithium batteries of the same size.
This is ideal if you have a physical size constraint but need higher power, or if you want to increase the power but you don’t need the extra energy that comes in our standard lithium offering.
Safe and lightweight the 12V 20Ah lithium iron phosphate battery is equipped with a flag terminal type and a built-in battery management system (BMS). All RELiON LiFePO4 batteries have installation flexibility, fast-charging capabilities and are maintenance free.
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: 6.1 lbs (2.75 kg)
APPLICATIONS
- Solar
PRODUCT REVIEWS
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 | 6.1 lbs (2.75 kg) |
| Terminal Type | Flag Terminal |
| Terminal Torque | 35 - 44 in-lbs (5 - 5 N-m) |
| Case Material | ABS |
| Enclosure Protection | IP66 |
| Cell Type - Chemistry | Cylindrical - LiFePO4 |
Discharge Specifications |
|
|---|---|
| Maximum Continuous Discharge Current | 50 A |
| Peak Discharge Current | 90 A (4 s ±1 s) |
| BMS Discharge Current Cut-Off | 140 A ±20 A (12 ±5 ms) |
| Recommended Low Voltage Disconnect | 11 V |
| BMS Discharge Voltage Cut-Off | 8 V (2.0 ±0.08 vpc) (20 ±5 ms) |
| Reconnect Voltage | 9 V ±1.32 V (2.25 ±0.33 vpc) |
| Short Circuit Protection | 200-600 µs |
Charge Specifications |
|
|---|---|
| Recommended Charge Current | 1 A - 10 A |
| Maximum Charge Current | 50 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 | 15.6 V (3.9 ±0.025 vpc) |
| (1.0 ±0.5 s) | |
| Reconnect Voltage | 15.2 V (3.8 ±0.050 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 | 167 ºF (75 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 (cells) (File# MH62098) | |
| IEC62133 (cells) | |
| Shipping Classification | UN 3480, CLASS 9 |
PERFORMANCE CHARACTERISTICS
I did my research and found that Relion was one of the top lithium Ion Phosphate battery suppliers .I chose this particular model because it had the 22 Amp continuous output that I needed to power my amateur radio gear. After using it a few times in the portable field and using my portable solar charge controller This battery is everything I thought it would be and any future batteries will also be Relion.