RB48V300
48V 300Ah
Deep Cycle Lithium Battery
RB48V300
48V 300Ah
Deep Cycle Lithium Battery
This super powerful lithium iron phosphate battery is perfect in many different applications, including solar, and marine. The RB48V300 maintains consistent power and is equipped with an LINYI Connector terminal type and built-in overcharge protection.
$9,995.95
ENGINEERED IN THE USA
US-BASED SUPPORT
10 YEAR WARRANTY
Features
Partial State of Charge Tolerant
Partial state of charge, known as PSOC, which is a killer of lead-acid batteries, does not affect performance or battery life of a lithium battery. Sometimes batteries don’t get fully charged, or they regularly operate in a partial state of charge. Either way, you can count on RELiON lithium batteries living a long and productive life.
Temperature Tolerant
Lithium batteries can handle a wide variety of conditions and are even 2.5x more efficient at low temperatures than lead-acid while being able to safely operate up to 149°F (65°C).
Maintenance Free
Plug, play, and charge. No watering, no corrosion.
Eco-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.
More Usable Capacity
Lead-acid batteries are typically sized up to two times your energy needs to account for extended periods without sun and less usable energy with higher rates of discharge. Plus, you are typically cautioned to limit your use to 50% of the rated capacity, as using more can significantly reduce performance. Lithium batteries provide 100% of their rated capacity, regardless of the rate of discharge. And, you can use it all and still get substantially longer cycle life.
Highly Efficient
RELiON lithium batteries have super low resistance, allowing you to charge much faster. And lithium batteries are 99% efficient, minimizing the losses during charge. Compare that to traditional lead-acid batteries at 75-80% efficiency, which results in significant loss when recharging.
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.
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!
Constant Power
Full power available throughout discharge. Voltage does not drop like lead-acid.
Specifications
Electrical Specifications |
|
|---|---|
| Nominal Voltage | 51.2 V |
| Nominal Capacity | 300 Ah |
| Capacity @ 25 A | 720 min |
| Energy | 15.36 kWh |
| Resistance | 50 mΩ @ 50% SOC |
| Efficiency | 99% |
| Self Discharge | <3% per Month |
| Maximum Batteries Connected in Series | 1 (Single Use) |
Mechanical Specifications |
|
|---|---|
| Dimensions (L x W x H) | 29.1 x 19.6 x 15.7” (740 x 497 x 398 mm) |
| Weight | 388 lbs (176 kg) |
| Terminal Type | M10 x 1.5 |
| Terminal Torque | 110 - 125 in-lbs (12.2 - 14 N-m) |
| Case Material | Steel Case |
| Enclosure Protection | IP65 |
| Cell Type | Cylindrical |
| Battery Chemistry | LiFePO4 |
Discharge Specifications |
|
|---|---|
| Maximum Continuous Discharge Current | 200 A |
| Peak Discharge Current | 250 A (4 s ±1 s) |
| Discharge Over-Current Protection | 390 A (5 s) |
| Recommended Low Voltage Disconnect | 44.0 V |
| Discharge Under-Voltage Protection | 40.0 V (2.5 ±0.1 vpc) |
| Reconnect Voltage | 40.5 V (2.53 ±0.1 vpc) |
| Short Circuit Protection | 5% |
Charge Specifications |
|
|---|---|
| Recommended Charge Current | ≤100 A |
| Maximum Continuous Charge Current | 200 A |
| Charge Current 32ºF to 14ºF (0 to -10 ºC) | ≤0.1 C (20 A) |
| Charge Current -4ºF to 14ºF (-20 to -10 ºC) | ≤0.05 C (10 A) |
| Recommended Charge Voltage | 56.0 V - 58.4 V |
| BMS Charge Voltage Cut-Off | 60.8 V (3.9 vpc) |
| Reconnect Voltage | 60.3 V (3.87 vpc) |
| Balancing Voltage | 57.6 V (3.6 ±0.025 vpc) |
Temperature Specifications |
|
|---|---|
| Discharge Temperature | -4 to 131 ºF (-20 to 55 ºC) |
| Charge Temperature* | -4 to 131 ºF (-20 to 55 ºC) |
| Recommended Storage Temperature | 23 to 95 ºF (-5 to 35 ºC) |
| BMS High Temperature Cut-Off | 149 ºF (65 ºC) |
| Reconnect Temperature | 145 ºF (63 ºC) |
| *Refer to charge currents below 0°C (32°F) | |
Compliance Specifications |
|
|---|---|
| Certifications | UN38.3, UKCA & CE (battery) |
| UL1642 (cells) (File# MH64523) | |
| IEC62133 (cells) | |
| Shipping Classification | UN 3480, CLASS 9 |
TYPICAL LITHIUM IRON PHOSPHATE CHARACTERISTICS
Reviews
David Adams
Oct 17th, 2022
Just thought you'd like to know that with our grid down for 1 week after hurricane Ian I was powering my entire house with solar and 6 of your RB48V300 batteries (A/C, washer, dryer, water heaters, oven, cooktop, others). The batteries never even broke a sweat! About 240 Ah used after dark and by 10AM next morning batteries were back at 100% charge. Thank you for this truly great product.
Gary Leatherman
Apr 1st, 2020
Awesome battery for my emergency power back up on my 18kw solar system. Their support team is incredible and I am very pleased with my purchase.
Documentation
Other Documentation
Frequently Asked Questions
The RB48V300 Is Great For Powering
Renewable Energy
Marine
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Just thought you'd like to know that with our grid down for 1 week after hurricane Ian I was powering my entire house with solar and 6 of your RB48V300 batteries (A/C, washer, dryer, water heaters, oven, cooktop, others). The batteries never even broke a sweat! About 240 Ah used after dark and by 10AM next morning batteries were back at 100% charge. Thank you for this truly great product.
Awesome battery for my emergency power back up on my 18kw solar system. Their support team is incredible and I am very pleased with my purchase.