Relion Battery - RB20 - 12V 20Ah LiFePO4

Product Description

The RB20 lithium iron phosphate battery provides ample power for high amp draw electronics or in outdoor recreational use where lighter weight and capacity are key. It's commonly used in fishing electronics, robotics, solar lighting, remote power and other deep cycle applications.

PRODUCT SPECIFICATIONS

Electrical Specifications

• Nominal Voltage: 12.8 V
• Nominal Capacity: 20 Ah
• 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: 5.6 lbs (2.55 kg)
• Terminal Type: M6 x 1.0
• Terminal Torque: 35 - 44 in-lbs (4 - 5 N-m)
• Case Material: ABS
• Enclosure Protection: IP66
• Cell Type - Chemistry: Cylindrical - LiFePO4

Discharge Specifications

• Maximum Continuous Discharge Current: 20 A
• Peak Discharge Current: 40 A (7.5 s ±2.5 s)
• Discharge Over-Current Protection: 70 A ±10 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 ±0.10 vpc)
• Short Circuit Protection Response Time: 200-500 µs

Charge Specifications

• Recommended Charge Current: 1 A - 10 A
• Maximum Continuous Charge Current: 20 A
• Charge Current 32ºF to 14ºF (0 to -10 ºC): ≤0.1 C (2 A)
• Charge Current -4ºF to 14ºF (-20 to -10 ºC): ≤0.05 C (1 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 ±0.025 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: 158 ºF (70 ºC)
• Reconnect Temperature: 122 ºF (50 ºC)
• Note: *Refer to charge currents below 0°C (32°F)

Compliance Specifications

• Certifications: UKCA & CE (battery), UN38.3 (battery), UL1642 (cells) (File# MH64523), IEC62133 (cells)
• Shipping Classification: UN 3480, CLASS 9