Relion Battery - RB20-X - 12V 20Ah LiFePO4

Product Description

The RB20-X is the smallest battery in the RELiON X-Series allowing for higher peak and higher continuous discharge currents compared to our standard lithium batteries. Ideal for solar and recreational power, this LiFePO4 battery is equipped with a flag terminal type and built-in BMS.

PRODUCT SPECIFICATIONS

Electrical Specifications

• Nominal Voltage: 12.8 V
• Nominal Capacity: 20 Ah
• Capacity @ 25 A: 48 min
• Energy: 256 Wh
• Resistance: ≤60 mΩ @ 50% SOC
• Efficiency: 99%
• Self Discharge: <3% per Month
• Maximum Batteries Connected in Series: 3

Mechanical Specifications

• Dimensions (L x W x H): 7.1 x 3.0 x 6.7” (181 x 76 x 169 mm)
• Weight: 6.1 lbs (2.75 kg)
• Terminal Type: M6
• Terminal Torque: 35 - 44 in-lbs (5 - 5 N-m)
• Case Material: ABS
• Enclosure Protection: IP66
• Cell Type - Chemistry: Cylindrical - LiFePO4

Discharge Specifications

• Maximum Continuous Discharge Current: 50 A
• Peak Discharge Current: 90 A (4 s ±1 s)
• Discharge Over-Current Protection: 140 A ±20 A (12 ±5 ms)
• Recommended Low Voltage Disconnect: 11.0 V
• Discharge Under-Voltage Protection: 8.0 V (2.0 ±0.08 vpc) (20 ±5 ms)
• Reconnect Voltage: 9.0 V ±1.32 V (2.25 ±0.33 vpc)
• Short Circuit Protection Response Time: 200-600 µs

Charge Specifications

• Recommended Charge Current: 1 A - 10 A
• Maximum Continuous Charge Current: 50 A
• Charge Current 32ºF to 14ºF (-10 to 0ºC): ≤0.1 C (5 A)
• Charge Current -4ºF to 14ºF (-20 to -10ºC): ≤0.05 C (2.5 A)
• Recommended Charge Voltage: 14.2 V - 14.6 V
• BMS Charge Voltage Cut-Off: 15.6 V (3.9 ±0.025 vpc)(1.0 ±0.5 s)
• Reconnect Voltage: 15.2 V (3.8 ±0.050 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)
• Recommended Storage Temperature: 23 to 95 ºF (-5 to 35 ºC)
• BMS High Temperature Cut-Off: 167 ºF (75 ºC)
• Reconnect Temperature: 122 ºF (50 ºC)
• Note: *Refer to charge currents below 0°C (32°F)

Compliance Specifications

• Certifications: CE & UKCA (battery), UN38.3 (battery), UL1642 (cells) (File# MH62098), IEC62133 (cells)
• Shipping Classification: UN 3480, CLASS 9