CSB MSJ-800 Telecom Battery VRLA-AGM 2V 800Ah

Product Features

This battery is a valve-regulated lead-acid (VRLA) type.
Maintenance-free; with Absorbent Glass Mat (AGM) technology, gas recombination efficiency can reach up to 99%.
Its construction consists of pure lead and incorporates proprietary elements.
Developed for high-capacity float-charge standby power applications.
The manufacturing process complies with IEC 60896-21/22:2004; UL1989 recognition (MH14533) has also been obtained.

Application Scenarios

Telecom base station DC power backup
Central office backup for fiber access networks
DC power supply for microwave relay stations
48V DC system for telecom equipment rooms
Backup power for broadband access equipment
Mobile communication 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

As a 2V-rated VRLA-AGM battery in the MSJ family, the CSB MSJ-800 is defined by the manufacturer as a high-capacity, long-life battery series for telecommunications backup power. If operated in float charge mode at 25°C over the long term, its design life can reach 20 years and meets the Eurobat long-life classification's very long life standard of more than 12 years at 20°C. Rated voltage: 2Vdc. Capacity data: at 25°C and 1.80VPC, nominal capacity at 10-hour rate is 800Ah; at 1.75VPC and 8-hour rate, 808.00Ah; at 1.75VPC and 20-hour rate, 840.00Ah; at 1.80VPC and 8-hour rate, 792.00Ah. These capacities can meet the capacity requirements of telecommunications backup power supplies. In terms of construction, this battery combines valve-regulated sealed lead-acid design with absorbent glass mat (AGM) technology, with gas recombination efficiency up to 99%, and is a maintenance-free design overall. The battery uses a pure lead construction with a proprietary formulation for high-capacity float-charge standby power applications; production follows IEC 60896-21/22:2004 and it is UL1989 recognized (MH14533). The case uses flame-retardant ABS and meets UL 94-V0 requirements. Electrical specifications: at 25°C, float charge voltage per cell is 2.21 to 2.25Vdc, equalization charge voltage per cell is 2.35Vdc; maximum charge current is 240.00A, maximum discharge current is 4800A, and internal resistance is 0.25 mΩ. The terminal is an I4 threaded copper alloy terminal and can be fitted with M8 bolts; terminal torque is 126±25 Kgf·cm, 109±22 Lbf·in, or 12.3±2.5 N·m. Dimensions are 174.0±2.0 mm wide, 339.0±2.5 mm high, 373.0±2.5 mm deep, and weight 56.70 kg. Temperature conditions: nominal temperature 25°C, allowable discharge from -15°C to 50°C, and allowable charge and storage from -15°C to 40°C. For self-discharge, self-discharge is less than 10% after 90 days at 25°C; storage life at 25°C is up to 6 months, and the battery should be fully charged before use. If storage temperature exceeds 25°C, charge it in advance. In telecommunications, the MSJ-800 can be used in float-charge standby power applications, and its high-capacity and long-life design helps reduce replacement frequency. During installation, M8 bolts should be tightened according to the specified terminal torque, and the corresponding voltage should be set according to float or equalization charge requirements, so that the battery operates stably within the recommended temperature range.