24V 200Ah
Deep Cycle Lithium Battery


24V 200Ah
Deep Cycle Lithium Battery

This lithium iron phosphate battery is perfect in many solar applications. The RB24V200 maintains consistent power and is equipped with an M10 terminal type and a built-in battery management system (BMS).



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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.

Maintenance Free

Plug, play, and charge. No watering, no corrosion.

Built-In Protection

Every RELiON lithium battery comes with a state-of-the-art battery management system (BMS) that provides protection from over-charge, over-discharge and short circuit conditions. Battery cells are enclosed in explosion-proof stainless steel casings. Built-in thermal fuses and other safety features offer added protection.

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.

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.



Electrical Specifications

Nominal Voltage 25.6 V
Nominal Capacity 200Ah
Capacity @ 25 A 480 min
Energy 5120 Wh
Resistance ≤35 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) 16.1 x 14.44 x 16.4” (410 x 367 x 417 mm)
Weight 110.2 lbs (50 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 - Chemistry Cylindrical - LiFePO4

Discharge Specifications

Maximum Continuous Discharge Current 200 A
Peak Discharge Current 250 A (7.5 s ± 2.5 s)
Discharge Over-Current Protection 575 A ±60 A (12.5 ± 7.5 ms)
Recommended Low Voltage Disconnect 22.0 V
Discharge Under-Voltage Protection 18.4 V (2.3 ±0.1 vpc) (100 ±50 ms)
Reconnect Voltage 20.0 V (2.5 ±0.1 vpc)
Short Circuit Protection Response Time 200-600 μs

Charge Specifications

Recommended Charge Current 10 A - 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 28.4 V - 29.2 V
BMS Charge Voltage Cut-Off 30.8 V (3.85 ±0.05 vpc) (1 ±0.05 s)
Reconnect Voltage 29.2 V (3.65 ±0.05 vpc)
Balancing Voltage 28.8 V (3.6 ±0.025 vpc)

Temperature Specifications

Discharge Temperature -4 to 140 °F (-20 to 60 ºC)
Charge Temperature* -4 to 113 ºF (-20 to 45 ºC)
Recommended Storage Temperature 23 to 95 °F (-5 to 35 ºC)
BMS High Temperature Cut-Off 149 °F (65 ºC)
Reconnect Temperature 122 °F (50 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


Discharge Voltage Chart 24 V graph
Discharge Voltage At Various Rates 24 V graph
Charge Voltage Soc Chart 24 V graph
Charge Voltage Char Chart 24 V graph
Life Vs Lead Acid Chart graph
Cycle Life Vs Depth Discharge Chart graph



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The RB24V200 Is Great For Powering

Solar 230216 114023

Renewable Energy

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Backup Power

How to Read RELiON's Data Sheets

In this video one of our experts breaks down how to easily read our Data Sheets. Watch the video to learn more.

Understanding Your Battery: Terms To Know

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.

Learn More About LiFePO4 Battery Terms

We're Invested In Our Lithium Iron Phosphate Batteries

Lithium Certifications Recycling 1000X300