Long Battery 12VDC, 55AH

Model: WP55-12N
Rated voltage: 12VDC
Rated capacity: 55AH @ 20 hour rate (with 2.75AH to 10.50VDC)
Made in: Vietnam

The WP series of Long batteries are suitable for general use in UPS systems, telecommunications equipment, emergency lighting, store boxes, medical and laboratory equipment, fire alarm systems, power tools, toys, electric vehicles and more.


Safe and explosion proof design
Vertically or horizontally install capability
UL 1989 standard compability
Long life with low internal resistant

Technical Specification

Long battery WP55-12N technical specifications
Nominal voltage 12VDC
Nominal capacity 55AH @ 20 hour rate (2.75A to 10.50VDC)
52.25AH @ 10 hour rate (5.225A to 10.50VDC)
46.75AH @ 5 hour rate (9.35A to 10.20VDC)
31.17AH @ 1C (55A to 9.60VDC)
22AH @ 3C (165A to 9.60VDC)
New weight Approx. 17.0kg
Internal resistance 8mΩ
Max. discharge current 660A in 5 seconds
Charging mode @ 25°C Cycle use: 14.4 to 15.0VDC (max 16.5A)
Standby use: 13.5 to 13.8VDC
Temperature range Charge: -15 to +40°C; Discharge: -15 to +50°C; Storage: -15 to +40°C
Charge retention 1 month: 98%; 3 month: 94%; 6 month: 85%
Case material ABS UL94 HB (Flammability resistance UL94 V-0 Optional)
Terminal type F8