ABYSS® 24V 50Ah Group 24 Battery Data Sheet

Group 24 Lithium-ion Marine Battery

General Specifications

Physical Dimensions 10.2" x 6.69" x 8.18" (260 x 170 x 208 mm)
BCI Group Size Group 24
Weight 26.0 lbs (11.7 kg)
Water Rating IP65
Terminal Type M8 x 1.25"
Terminal Torque 80-100 in-lbs (8-10 N-m)
Case Material Acrylonitrile Butadiene Styrene - Flame Retardant
Cell Type LiFePO4

Electrical Specifications

Nominal Voltage 25.6V
Nominal Capacity 50 Ah @0.5C
Capacity (watts) 1290W
Parallel Connection Max. 6 units
Series Connection Max. 2 units
BMS 8S50A 
Circuit Protection

Over charge, Over discharge, Over current, Over temp, Short circuit, Balance, Automatic Fault Recovery

Cycle Life

3000 times Cycles @100%DOD and 6000 times @80% DOD

Self Discharge

Less than 3% per Month

Charge Efficiency

100% @0.2C

Discharge Efficiency 

98-100% @1C

Charge Specifications

Charge Voltage

28.8 ± 0.4V

Standard Current


Fast Current


Cut-off Over Voltage


Discharge Specifications

Standard Current  10A
Max. Con. Current 50A
Peak Current 400A (300ms) 
Cut-off Voltage


Temperature Specifications

Charge Temp 0℃ to 55℃ (32℉ to 131℉)
Discharge Temp -20℃ to 60℃(-4℉ to 140℉)
Storage Temp -5℃ to 45℃(23℉ to 113℉)

Certification & Compliance

 UL1642 (cells) File# MH49498
IEC62133 (cells) Standard for Exporting Lithium-ion Batteries
ROHS Electrical and Electronic Equipment
Shipping UN 3480, CLASS 9 Hazmat