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.
Maintenance Free
RELiON lithium batteries are maintenance-free – no watering, no corrosion. Low self-discharge means the batteries don’t lose capacity when they’re idle, assuring that you have the energy you need, every time you need it.
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.
Long Life
RELiON lithium batteries provide up to 10 times longer life than lead-acid batteries, and they still provide 80% of rated capacity after 2,000 cycles. Spend more time powering your applications and less time replacing your batteries.
Eco-Friendly
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.
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.
Chemical Specifications |
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Nominal Voltage | 12.8 V |
Nominal Capacity | 40 Ah |
Capacity @ 25 A | 96 min |
Energy | 512 Wh |
Resistance | ≤50 mΩ @ 50% SOC |
Efficiency | 99% |
Self Discharge | <3% per Month |
Maximum Batteries Connected in Series | 4 |
Mechanical Specifications |
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Dimensions (L x W x H) | 7.8 x 6.5 x 6.8” (197 x 166 x 173 mm) |
Weight | 11.9 lbs (5.4 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 |
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Maximum Continuous Discharge Current | 40 A |
Peak Discharge Current | 80 A (7.5 s ±2.5 s) |
Discharge Over-Current Protection | 170 A ±20 A (20 ±5 ms) |
Recommended Low Voltage Disconnect | 11.0 V |
Discharge Under-Voltage Protection | 8.0 V (2.0 ±0.08 vpc) (140 ±60 ms) |
Reconnect Voltage | 10.0 V (2.5 ±0.1 vpc) |
Short Circuit Protection Response Time | 200-600 µs |
Charge Specifications |
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Recommended Charge Current | 2 A - 20 A |
Maximum Continuous Charge Current | 40 A |
Charge Current 32ºF to 14ºF (0 to -10 ºC) | ≤0.1 C (4 A) |
Charge Current -4ºF to 14ºF (-20 to -10 ºC) | ≤0.05 C (2 A) |
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 ±0.050 vpc) |
Balancing Voltage | 14.4 V (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) |
Recommended Storage Temperature | 23 to 95 ºF (-5 to 35 ºC) |
BMS High Temperature Cut-Off | 176 ºF (80 ºC) |
Reconnect Temperature | 122 ºF (50 ºC) |
*Refer to charge currents below 0°C (32°F) |
Compliance Specifications |
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Certifications | UKCA & CE (battery) |
UN38.3 (battery) | |
UL1642 (cells) (File# MH62098) | |
IEC62133 (cells) | |
Shipping Classification | UN 3480, CLASS 9 |
Performance Characteristics
Understanding the basics of battery ratings and terminology is important when comparing and selecting the right type and number of batteries for your application to ensure you have enough energy to meet your energy goals.
There are many factors to keep in mind when discussing charging - how to charge, what charger is necessary, and more.
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