PRICE: $514.95
Contact Us Buyer's Guide

FREE GROUND SHIPPING (Usually ships within 1 - 2 business days)

* Within the continental U.S. only

This efficient and fast-charging 12V 40Ah lithium iron phosphate battery is equipped with an M8 terminal type and built-in overcharge protection. The RB40 battery meets UL, UN, CE and IEC certifications.

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

PRODUCT SPECIFICATIONS
  • Voltage: 12.8V
  • Amp Hours: 40Ah
DIMENSIONS & WEIGHT
  • Length: 7.8 in (197 mm)
  • Width: 6.5 in (166 mm)
  • Height: 6.8 in (173 mm)
  • Weight: 11.9 lbs (5.4 kg)
APPLICATIONS
  • AWP
  • Floor Machines
  • Solar

DATA SHEET

DOWNLOAD PDF

Chemical Specifications  

Nominal Voltage 12.8 V
Nominal Capacity 40 Ah
Capacity @ 25A 96 min
Energy 512 Wh
Resistance ≤50 mΩ @ 50% SOC
Efficiency 99%
Self Discharge <3% per Month
Maximum Modules in Series 4

Mechanical Specifications

Dimensions (L x W x H) 7.8 x 6.5 x 6.8” 197 x 166 x 173 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 40 A
Peak Discharge Current 80 A (7.5 s ±2.5 s)
BMS Discharge Current Cut-Off 170 A ±20 A (20 ±5 ms)
Recommended Low Voltage Disconnect 11 V
BMS Discharge Voltage Cut-Off 8 V (2.0 ±0.08 vpc) (140 ±60 ms)
Reconnect Voltage 10 V (2.5 ±0.1 vpc)
Short Circuit Protection 200-600 µs

Charge Specifications

Recommended Charge Current 20 A
Maximum Charge Current 40 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 ±0.050 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 32 to 113 ºF (0 to 45 ºC)
Storage Temperature 23 to 95 ºF (-5 to 35 ºC)
BMS High Temperature Cut-Off 176 ºF (80 ºC)
Reconnect Temperature 122 ºF (50 ºC)

Compliance Specifications

Certifications CE (battery)
UN38.3 (battery)
UL1642 & IEC62133 (cells)
Shipping Classification UN 3480, CLASS 9

PERFORMANCE CHARACTERISTICS

graph
graph
graph
graph
graph
graph

NEED A CUSTOM OEM SOLUTION?

Our team of engineers is ready to work with you to find the perfect solution.

Learn More