MSJ-260 2V 260Ah VRLA-AGM Telecom Standby Battery

Product Features

Valve Regulated Lead Acid (VRLA) Battery
Maintenance-Free, Absorbent Glass Mat (AGM) Technology for Efficient Gas Recombination of up to 99%
Pure Lead Construction and Proprietary Elements
Designed for High Capacity Float Service Standby Power Applications
Built in Accordance with IEC 60896-21/22:2004 and UL1989 Recognized (MH14533)

Application Scenarios

Telecom base station DC power backup
Optical access network central office backup
Microwave relay station DC supply
Telecom room 48V DC system
Broadband access equipment backup power
Mobile core network backup

Product parameters

Model：MSJ-260
Voltage：2 Vdc
Nominal Capacity：260 Ah @10hr-rate
Ah Capacity：253.60 (8-Hr 1.75 VPC @ 25°C)
Ah Capacity：262.00 (20-Hr 1.75 VPC @ 25°C)
Ah Capacity：246.40 (8-Hr 1.80 VPC @ 25°C)
Max. Charge Current：78.00 A
Max. Discharge Current：1560 A
Short Circuit Current：4872 A
Internal Resistance：0.36 mΩ
Terminal Type：I4 thread copper alloy terminal to accept M8 bolt
Terminal Torque：126±25 Kgf·cm / 109±22 Lbf·in / 12.3±2.5 N·m
Container Material：Flame-retardant ABS (UL 94-V0)
Weight：18.70 / 41.21 kg / lb.
Width (W)：131.0±1.5 / 5.16±0.06 mm / in
Height (H)：339.0±2.5 / 13.15±0.10 mm / in
Depth (D)：170.0±2.0 / 6.69±0.08 mm / in
Design Life：Up to 20 years in standby service at 25°C; Eurobat (20°C): >12 years, Very Long Life
Float Charging Voltage：2.21 ~ 2.25 Vdc/battery
Equalizing Charging Voltage：2.35 Vdc/battery
Operating Temperature：discharge -15°C to 50°C; charge/storage -15°C to 40°C

Product details

The CSB MSJ-260 belongs to the MSJ series of 2V valve-regulated sealed lead-acid batteries, using AGM technology with a gas recombination efficiency of up to 99%, and is maintenance-free by design. This model has a nominal voltage of 2 Vdc and a nominal capacity of 260 Ah (1.80 VPC @25°C, 10-hour rate); at the 8-hour rate and 1.75 VPC the capacity is 253.60 Ah, at the 20-hour rate and 1.75 VPC it is 262.00 Ah, and at the 8-hour rate and 1.80 VPC it is 246.40 Ah. In terms of electrical performance, the MSJ-260 has a maximum charge current of 78.00 A, a maximum discharge current of 1560 A, a short-circuit current of 4872 A, and an internal resistance of 0.36 mΩ. The float charge voltage is 2.21 to 2.25 Vdc/battery (25°C), and the equalizing charge voltage is 2.35 Vdc/battery (25°C). Regarding self-discharge, after 90 days of storage at 25°C the remaining capacity is greater than 90%, and it can be stored for up to 6 months; a full charge is required before use. If the storage temperature is above 25°C, it should be charged earlier. This battery uses a pure lead structure and a proprietary formulation, and is designed specifically for high-capacity float standby power applications. It complies with IEC 60896-21/22:2004 and is recognized under UL1989 (MH14533). The case material is flame-retardant ABS (UL 94-V0), and the terminals are I4 threaded copper alloy terminals that accept M8 bolts, with a terminal torque of 126±25 Kgf·cm (109±22 Lbf·in or 12.3±2.5 N·m). In terms of dimensions and weight, the MSJ-260 has a width of 131.0±1.5 mm, a height of 339.0±2.5 mm, a depth of 170.0±2.0 mm, and a weight of 18.70 kg (41.21 lb). The operating temperature range is: nominal 25°C; discharge -15°C to 50°C; charge and storage -15°C to 40°C. The MSJ series is positioned as a VRLA 2V high-capacity long-life telecom battery series, with a design life of up to 20 years under float charge at 25°C, meeting the Eurobat long-life standard (greater than 12 years at 20°C). The MSJ-260 is suitable for standby power scenarios in the telecommunications field, providing float standby power support for equipment such as base stations.