CSB MSJ-200 2V 200Ah Valve-Regulated Sealed Lead-Acid AGM Telecom Battery

Product Features

VRLA (valve-regulated lead-acid) battery
With AGM (absorbent glass mat) technology, gas recombination efficiency up to 99%, and no routine maintenance required
Pure lead construction with proprietary elements
Designed for high-capacity float standby power applications
Manufactured to IEC 60896-21/22:2004 and UL1989 certified (MH14533)

Application Scenarios

Backup power for DC supply at communication base stations
Standby power for central office equipment in fiber access networks
DC power supply for microwave relay stations
48V DC power supply systems in telecom equipment rooms
Backup power source for broadband access equipment
Backup power for mobile communication core networks

Product parameters

Model：MSJ-200
Voltage：2 Vdc
Nominal Capacity：200 Ah @10hr-rate
Ah Capacity：202.40 (8-Hr 1.75 VPC @ 25°C)
Ah Capacity：210.00 (20-Hr 1.75 VPC @ 25°C)
Ah Capacity：197.60 (8-Hr 1.80 VPC @ 25°C)
Max. Charge Current：60.00 A
Max. Discharge Current：1200 A
Short Circuit Current：3939 A
Internal Resistance：0.42 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：15.00 / 33.04 kg / lb.
Width (W)：106.0±1.5 / 4.17±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

In CSB's MSJ series, the MSJ-200 is a 2V valve-regulated sealed lead-acid battery that uses Absorbent Glass Mat (AGM) technology, achieving gas recombination efficiency of up to 99%, and is maintenance-free. Nominal voltage is 2Vdc; at 25°C and 1.80VPC, the 10-hour rate nominal capacity is 200Ah, while at the 8-hour rate (1.75VPC) it is 202.40Ah, the 20-hour rate (1.75VPC) provides 210.00Ah, and the 8-hour rate (1.80VPC) is 197.60Ah. This battery uses a pure lead construction with proprietary elements and is primarily intended for high-capacity float standby power applications. Its design float voltage at 25°C is 2.21 to 2.25Vdc/cell, and the equalization voltage is 2.35Vdc/cell (25°C). Maximum charge current is 60.00A, maximum discharge current is 1200A, short-circuit current is 3939A, and internal resistance is only 0.42mΩ. Temperature range: nominal 25°C; discharge from -15°C to 50°C; charge and storage from -15°C to 40°C. Stored at 25°C for 90 days, the self-discharge rate is less than 10%, and storage is possible for up to 6 months, but a full charge is required before use; if storage temperature exceeds 25°C, recharge earlier. For the housing, the MSJ-200 uses flame-retardant ABS (UL 94-V0), and the terminals are I4 threaded copper alloy that accept M8 bolts, with a torque of 126±25 Kgf·cm / 109±22 Lbf·in / 12.3±2.5 N·m. In dimensions, width is 106.0±1.5mm, height is 339.0±2.5mm, depth is 170.0±2.0mm, and weight is approximately 15.00kg (33.04 lb). This battery meets the IEC 60896-21/22:2004 standard and also holds UL1989 recognition (MH14533). The officially designated application area is telecommunications, and the product is positioned as a 2V high-capacity, long-life standby power series, with a design life of up to 20 years under 25°C float service, meeting the Eurobat long-life standard (greater than 12 years at 20°C). It is suitable for float standby power applications requiring high reliability and long backup time, such as DC power systems for telecom base stations, data centers, and other infrastructure.