RB50-HP
12V 50Ah Dual Purpose Battery
The RB50-HP is a 12V 50Ah lithium marine battery in RELiON’s High Performance series. This lithium iron phosphate battery is specially designed to handle both starting and cycling. It delivers powerful cranking amperage for easy starting, and low amp draw service for reliable auxiliary power. RELiON’s HP Series dual purpose batteries are a perfect compromise between the unique demands of starting service and deep cycling, low amp draw service.
The RB50-HP offers abundant power in a small footprint. It’s versatile and compact enough to be used in many marine applications including smaller boats with lower battery requirements, boats that require two of the same batteries and boats with electrical systems designed for just one battery.
The RB50-HP features installation flexibility and no maintenance over the life of the battery. It maintains consistent power and is equipped with an M8 terminal type and a built-in battery management system (BMS).
PRODUCT REVIEWS
DATA SHEET
DOWNLOAD PDFElectrical Specifications |
|
|---|---|
| Nominal Voltage | 12.8V |
| Nominal Capacity | 50Ah |
| Capacity @ 25A | 120 min |
| Energy | 640 Wh |
| Resistance | ≤20 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) | 10.2 x 6.6 x 8.6” 260 x 168 x 218 mm |
| Weight | 18.7 lbs (8.5 kg) |
| Terminal Type | M8 x 1.25 |
| 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 | 400 A (≤3 s) |
| BMS Discharge Current Cut-Off | 550 A ±60 A (42 ±22 ms) |
| Recommended Low Voltage Disconnect | 11V |
| BMS Discharge Voltage Cut-Off | 8V (2.0 ±0.08 vpc) (100 ±50 ms) |
| Reconnect Voltage | 10V (2.5 ±0.1 vpc) |
| Short Circuit Protection | 200-800 μs |
Charge Specifications |
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|---|---|
| Recommended Charge Current | 2.5 A - 25 A |
| Maximum Charge Current | 50 A |
| Recommended Charge Voltage | 14.2V - 14.6V |
| Charge Current 32º to 14ºF (0 to -10 ºC) | ≤0.1 C |
| Charge Current -4º to 14ºF (-20 to -10 ºC) | ≤0.05 C |
| BMS Charge Voltage Cut-Off | 15.2V (3.8 ±0.05 vpc) (1.0 ±0.5 s) |
| Reconnect Voltage | 14.4V (3.6 ±0.05 vpc) |
| Balancing Voltage | 14.4V (3.6 ±0.025 vpc) |
Temperature Specifications |
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|---|---|
| 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 | 185 ºF ±5 ºF (85 ºC ±5 ºC) |
| Reconnect Temperature | 140 ºF ±59 ºF (60 ºC ±15 ºC) |
| *Refer to charge currents below 0°C (32°F) | |
Compliance Specifications |
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|---|---|
| Certifications | CE (battery) UL1642 & IEC62133 (cells) |
| Shipping Classification | UN 3480, CLASS 9 |
Performance Characteristics
Bassmaster Elite Series Pro Patrick Walters Explains Why He Uses Lithium Batteries
It’s amazing how long you can run the energy hog sonar units. I run the electronic for two days straight and still have 50% of batteries left. This gives me a peace of mind not have to turn off the units to save energy to get through the day.
So far I've been happy with it. I have it on my boat to use for starting an outboard engine. It performed very well. I'm still on an early stage so hopefully, it will perform as expected in a year down the road.