RB20-X
12V 20Ah
High Power Deep Cycle Lithium Battery
RB20-X
12V 20Ah
High Power Deep Cycle Lithium Battery
The RB20-X is the smallest battery in the RELiON X-Series allowing for higher peak and higher continuous discharge currents compared to our standard lithium batteries. Ideal for solar and recreational power, this LiFePO4 battery is equipped with a flag terminal type and built-in BMS.
$199.95
ENGINEERED IN THE USA
US-BASED SUPPORT
10 YEAR WARRANTY
Features
Maintenance Free
Plug, play, and charge. No watering, no corrosion.
Lightweight & Easy to Transport:
Compared to other battery chemistries, RELiON LiFePO4 batteries provide the same or greater energy at less than half the weight and size. This means more flexibility and ease of use!
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.
Higher Power
Our X-Series batteries allow for higher peak and higher continuous discharge currents compared to our standard lithium batteries of the same size.
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 charging does not affect performance quality or battery life. A low self-discharge rate means worry-free storage so even occasional users can be assured of reliable performance.
Constant Power
Full power available throughout discharge. Voltage does not drop like lead-acid.
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 | 20 Ah |
| Capacity @ 25 A | 48 min |
| Energy | 256 Wh |
| Resistance | ≤60 mΩ @ 50% SOC |
| Efficiency | 99% |
| Self Discharge | <3% per Month |
| Maximum Batteries Connected 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 | M6 |
| 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) |
| Discharge Over-Current Protection | 140 A ±20 A (12 ±5 ms) |
| Recommended Low Voltage Disconnect | 11.0 V |
| Discharge Under-Voltage Protection | 8.0 V (2.0 ±0.08 vpc) (20 ±5 ms) |
| Reconnect Voltage | 9.0 V ±1.32 V (2.25 ±0.33 vpc) |
| Short Circuit Protection Response Time | 200-600 µs |
Charge Specifications |
|
|---|---|
| Recommended Charge Current | 1 A - 10 A |
| Maximum Continuous Charge Current | 50 A |
| Charge Current 32ºF to 14ºF (-10 to 0ºC) | ≤0.1 C (5 A) |
| Charge Current -4ºF to 14ºF (-20 to -10ºC) | ≤0.05 C (2.5 A) |
| 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) |
| Recommended 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 & UKCA (battery) |
| UN38.3 (battery) | |
| UL1642 (cells) (File# MH62098) | |
| IEC62133 (cells) | |
| Shipping Classification | UN 3480, CLASS 9 |
Performance Characteristics
Reviews
Robert C.
Apr 15th, 2021
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.
Documentation
Other Documentation
The RB20-X Is Great For Powering
Renewable Energy
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