MSJ-800 2V 800Ah VRLA-AGM Telecom 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-800
Voltage：2 Vdc
Nominal Capacity：800 Ah @10hr-rate
Ah Capacity：808.00 (8-Hr 1.75 VPC @ 25°C)
Ah Capacity：840.00 (20-Hr 1.75 VPC @ 25°C)
Ah Capacity：792.00 (8-Hr 1.80 VPC @ 25°C)
Max. Charge Current：240.00 A
Max. Discharge Current：4800 A
Internal Resistance：0.25 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：56.70 / 124.97 kg / lb.
Width (W)：174.0±2.0 / 6.85±0.08 mm / in
Height (H)：339.0±2.5 / 13.15±0.10 mm / in
Depth (D)：373.0±2.5 / 14.69±0.10 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-800 belongs to the MSJ series of 2V VRLA-AGM batteries, officially positioned as a high-capacity, long-life telecom standby battery series, with a design life of up to 20 years in float service at 25°C, meeting the Eurobat long-life classification requirement of greater than 12 years at 20°C for very long life. Its nominal voltage is 2Vdc, with a 10-hour rate nominal capacity of 800Ah at 1.80VPC, 25°C, 808.00Ah at the 8-hour rate at 1.75VPC, 840.00Ah at the 20-hour rate at 1.75VPC, and 792.00Ah at the 8-hour rate at 1.80VPC, meeting the capacity requirements of telecom standby power. The battery adopts a valve-regulated sealed lead-acid structure and absorbed glass mat AGM technology, with a gas recombination efficiency of up to 99%, and is a maintenance-free design. The product uses a pure lead structure and proprietary formulation, is aimed at high-capacity float standby power applications, is manufactured in accordance with IEC 60896-21/22:2004, and is recognized under UL1989 (MH14533). The case material is flame-retardant ABS, meeting UL 94-V0 requirements. In terms of electrical parameters, the MSJ-800 has a float charge voltage of 2.21 to 2.25Vdc per cell at 25°C, an equalizing charge voltage of 2.35Vdc per cell at 25°C, a maximum charge current of 240.00A, a maximum discharge current of 4800A, and an internal resistance of 0.25 mΩ. The terminal is an I4 threaded copper alloy terminal that accepts an M8 bolt, with a terminal torque of 126±25 Kgf·cm, 109±22 Lbf·in, or 12.3±2.5 N·m. In terms of dimensions, the battery width is 174.0±2.0 mm, height is 339.0±2.5 mm, depth is 373.0±2.5 mm, and weight is 56.70 kg. In terms of operating temperature, the nominal temperature is 25°C, the discharge temperature range is -15°C to 50°C, and the charge and storage temperature range is -15°C to 40°C. In terms of self-discharge, self-discharge is less than 10% after 90 days at 25°C, storage is possible for up to 6 months at 25°C, a full charge is required before use, and if the storage temperature is above 25°C, charging should be done sooner. The MSJ-800 is suitable for float standby power scenarios in the telecom field, and its high capacity and long-life design help reduce replacement frequency. During installation, the M8 bolts should be tightened according to the terminal torque requirements, and the corresponding voltage should be set according to the float or equalizing charge requirements to ensure stable battery operation within the recommended temperature range.