product image
PRICE: $314.95

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

* Within the continental U.S. only

The RB20-X is the smallest battery in the RELiON X-Series. Our X-Series batteries allow for higher peak and higher continuous discharge currents compared to our standard lithium batteries of the same size.

This is ideal if you have a physical size constraint but need higher power, or if you want to increase the power but you don’t need the extra energy that comes in our standard lithium offering.

Safe and lightweight the 12V 20Ah lithium iron phosphate battery is equipped with a flag terminal type and a built-in battery management system (BMS). All RELiON LiFePO4 batteries have installation flexibility, fast-charging capabilities and are maintenance free.

PRODUCT SPECIFICATIONS
  • Voltage: 12.8V
  • Amp Hours: 20Ah
DIMENSIONS & WEIGHT
  • Length: 7.1 in (181 mm)
  • Width: 3 in (76 mm)
  • Height: 6.6 in (166.5 mm)
  • Weight: 6.1 lbs (2.75 kg)
APPLICATIONS
  • Solar

DATA SHEET

DOWNLOAD PDF

Electrical Specifications

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

Mechanical Specifications

Dimensions (L x W x H) 7.1 x 3.0 x 6.6” 181 x 76 x 166.5 mm
Weight 6.1 lbs (2.75 kg)
Terminal Type Flag Terminal
Terminal Torque 35 - 44 in-lbs (5 - 5 N-m)
Case Material ABS
Enclosure Protection IP56
Cell Type - Chemistry Cylindrical - LiFePO4

Discharge Specifications

Maximum Continuous Discharge Current 50 A
Peak Discharge Current 90 A (4 s ±1 s)
BMS Discharge Current Cut-Off 140 A ±20 A (12 ±5 ms)
Recommended Low Voltage Disconnect 11 V
BMS Discharge Voltage Cut-Off 8 V (2.0 ±0.08 vpc) (20 ±5 ms)
Reconnect Voltage 9 V ±1.32 V (2.25 ±0.33 vpc)
Short Circuit Protection 200-600 µs

Charge Specifications

Recommended Charge Current 10 A
Maximum Charge Current 50 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 32 to 113 ºF (0 to 45 ºC)
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)

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

HAVE ADDITIONAL QUESTIONS?

Our team of dedicated LiFePO4 specialists can help!

Contact Us

We're Invested In Our Lithium Iron Phosphate Batteries