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PRICE: $489.56 $543.95

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This 24V 20Ah lithium iron phosphate battery is perfect in many applications, including solar energy systems. It maintains consistent power and is equipped with an M8 terminal type and a built-in battery management system (BMS). The RB24V20 battery meets UL, CE and IEC certifications.

All RELiON LiFePO4 batteries have installation flexibility, fast-charging capabilities and are maintenance free.

PRODUCT SPECIFICATIONS
  • Voltage: 25.6V
  • Amp Hours: 20Ah
DIMENSIONS & WEIGHT
  • Length: 7.7 in (195 mm)
  • Width: 5.2 in (131 mm)
  • Height: 6.7 in (171 mm)
  • Weight: 11.9 lbs (5.4 kg)
APPLICATIONS
  • Solar

DATA SHEET

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Electrical Specifications

Nominal Voltage 25.6V
Nominal Capacity 20 Ah
Capacity @ 25A 48 min
Energy 512Wh
Resistance 50 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) 7.7 x 5.2 x 6.7” 195 x 131 x 171 mm
Weight 12 lbs (5.4 kg)
Terminal Type M8
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 30 A
Peak Discharge Current 60 A (7.5 s ±2.5 s)
BMS Discharge Current Cut-Off 170 A ±20 A (10 ±5 ms)
Recommended Low Voltage Disconnect 22V
BMS Discharge Voltage Cut-Off 16V (2.0 ±0.08 vpc) (20 ±6 ms)
Reconnect Voltage 20V (2.5 ±0.05 vpc)
Short Circuit Protection 200-600 μs

Charge Specifications

Recommended Charge Current 1 A - 10 A
Maximum Charge Current 30 A
Charge Current 32ºF to 14ºF (0 to -10 ºC) ≤0.1 C
Charge Current -4ºF to 14ºF (-20 to -10 ºC) ≤0.05 C
Recommended Charge Voltage 28.4 V - 29.2 V
BMS Charge Voltage Cut-Off 31.2 V (3.9 ±0.025 vpc) (1 ±0.3 s)
Reconnect Voltage 30.4 V (3.8 ±0.05 vpc)
Balancing Voltage 28.8 V (3.6 ±0.025 vpc)

Temperature Specifications

Discharge Temperature -4 to 140 ºF (-20 to 60ºC)
Charge Temperature* -4 to 113 ºF (-20 to 45ºC)
Storage Temperature 23 to 95 ºF (-5 to 35ºC)
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

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

Performance Characteristics

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