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The RB100-LT is a 12V 100Ah lithium battery and is part of RELiON’s Low-Temperature Series. This lithium iron phosphate battery is specially designed for cold weather performance. RELiON’s LT Series batteries can safely charge at temperatures down to -20°C (-4°F) using a standard charger. The system features proprietary technology which draws power from the charger itself, requiring no additional components.

The entire process of heating and charging with the LT Series is completely seamless. Simply plug the battery into the regular lithium charger and the internal heating and monitoring system takes care of the rest. Because it takes time to heat the cells, the charging process in below-freezing temperatures could take a little longer.

The Low-Temperature Series battery has the same size and performance as other RELiON batteries but can safely charge when temperatures drop as low as -20°C using a standard charger. The RB100-LT is an ideal choice for use in RVs, off-grid solar, electric vehicles, and in any application where charging in colder temperatures is necessary.

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Frequently Asked Questions

How do LiFePO4 batteries perform in cold temperatures?
As with all batteries, cold temperatures will result in reduced performance. LiFePO4 batteries have significantly more capacity and voltage retention in the cold when compared to lead-acid batteries. Important tips to keep in mind: When charging lithium iron phosphate batteries below 0°C (32°F), the charge current must be reduced to 0.1C and below -10°C (14°F) it must be reduced to 0.05C. Failure to reduce the current below freezing temperatures can cause irreversible damage to your battery. RELiON’s LT Series is specifically designed for cold charging, utilizing charge current to heat the battery before allowing charge. With the LT series, you can start the charge below 0°C (32°F).
How does the RB100-LT (Low Temp) battery work?
The RB100-LT features the same size and performance as RELiON's RB100, but can safely charge at temperatures that drop below 0°C (32°F) using a standard charger. The system features proprietary technology which draws power from the charger itself, requiring no additional components. The entire process of heating and charging is completely seamless for the user. Simply plug the battery into the regular lithium charger and the internal heating and monitoring system takes care of the rest. Because it takes time to heat the cells, the charging process will take a little longer in below-freezing temperatures.
How can I determine the state of charge (SOC) of my lithium iron phosphate battery?
The best way to determine the SOC of your battery is to use a battery indicator— a high-precision instrument that captures instantaneous and integrated data in real-time. RELiON’s battery indicator uses a 500A shunt to accurately measure the discharge/recharge currents and calculates the Ampere-hours (Ah) flowing in and out of the battery.

DATA SHEET

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ELECTRICAL SPECIFICATIONS

Nominal Voltage 12.8 V
Nominal Capacity 100 Ah
Capacity @ 25A 240 min
Energy 1280 Wh
Resistance ≤30 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) 12.95 x 6.77 x 8.9” 329 x 172 x 223 mm
Weight 30 lbs (13.59 kg)
Terminal Type M8 X 1.25
Terminal Torque 80 - 100 in-lbs (9 - 11 N-m)
Case Material ABS
Enclosure Protection IP56
Cell Type - Chemistry Cylindrical - LiFePO4

DISCHARGE SPECIFICATIONS

Maximum Continuous Discharge Current 100 A
Peak Discharge Current 200 A (7.5 s ±2.5 s)
BMS Discharge Current Cut-Off 280 A ±50 A (32 ±10 ms)
Recommended Low Voltage Disconnect 11 V
BMS Discharge Voltage Cut-Off 9.2 V (2.3 ±0.08 vpc) (4.7 ±1 s)
Reconnect Voltage 10 V (2.5 ±0.1 vpc)
Short Circuit Protection 200-600 μs

CHARGE SPECIFICATIONS

Recommended Charge Current 5 A - 50 A
Maximum Charge Current 100 A
Recommended Charge Voltage 14.2 V - 14.6 V
BMS Charge Voltage Cut-Off 15.4 V (3.85 ±0.025 vpc) (1000 ±200 ms)
Reconnect Voltage 14.6 V (3.65 ±0.05 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)
Storage Temperature 23 to 95 ºF (-5 to 35 ºC)
BMS High Temperature Cut-Off - Discharge 185 ºF (85 ºC)
BMS High Temperature Cut-Off - Charge 140 ºF (60 ºC)
Reconnect Temperature 122 ºF (50 ºC)

HEATING ELEMENT SPECIFICATIONS

Heating Temperature Range -4 to 41 ºF (-20 to 5 ºC)
Heating Time Approximately 1 hr @ 10 A
BMS Heating Element Cut-Off 167 ºF (75 ºC)

COMPLIANCE SPECIFICATIONS

Certifications CE (battery)
UL1642 & IEC62133 (cells)
Shipping Classification UN 3480, CLASS 9

PERFORMANCE SPECIFICATIONS

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