CSB MSV-400 Telecom Battery 2V 400Ah VRLA-AGM

Product Features

Battery type is valve-regulated lead-acid (VRLA)
Maintenance-free, with gas recombination efficiency up to 99%, thanks to AGM (absorbent glass mat) technology
Construction uses pure lead with proprietary elements added
Developed for high-capacity float standby power applications
Recognized to UL1989 (MH14533) and manufactured in accordance with IEC 60896-21/22:2004

Application Scenarios

DC power backup for communication base stations
Standby power for optical access network central offices
DC power supply, suitable for microwave relay stations
48V DC systems deployed in telecom equipment rooms
Backup power for broadband access equipment
Standby power for mobile communication core networks

Product parameters

Model：MSV-400
Voltage：2 Vdc
Nominal Capacity：400 Ah @10hr-rate
Ah Capacity：408.00 (8-Hr 1.75 VPC @ 25°C)
Ah Capacity：424.00 (20-Hr 1.75 VPC @ 25°C)
Ah Capacity：400.00 (8-Hr 1.80 VPC @ 25°C)
Max. Charge Current：120.00 A
Max. Discharge Current：2400 A
Internal Resistance：0.43 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：24.90 / 54.88 kg / lb.
Length (L)：197.0±2.0 / 7.76±0.08 mm / in
Width (W)：170.0±2.0 / 6.69±0.08 mm / in
Height (H)：339.0±2.5 / 13.15±0.10 mm / in
Design Life：Up to 15 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 telecommunications and other scenarios, when high-capacity backup power is required, the CSB MSV-400 in the MSV series can handle the task. It is a 2V valve-regulated sealed lead-acid battery that uses absorbent glass mat (AGM) technology, can achieve 99% gas recombination efficiency, and requires no routine maintenance. The product construction uses pure lead with proprietary elements added; at 25°C, the design float life can reach up to 15 years, and it meets the Eurobat long-life standard (more than 12 years at 20°C). The housing is made of flame-retardant ABS (UL 94-V0); the terminal uses an I4 threaded copper alloy type, can accept M8 bolts, and has a torque range of 126±25 Kgf·cm (12.3±2.5 N·m). In terms of capacity, at 25°C, 1.80VPC, 10-hour rate, the nominal value is 400Ah; the 8-hour rate (1.75VPC) corresponds to 408Ah; the 20-hour rate (1.75VPC) is 424Ah; if calculated at the 8-hour rate (1.80VPC), it is 400Ah. High-capacity backup power needs such as telecommunications are thereby met. Dimensions: length 197.0mm, width 170.0mm, height 339.0mm; weight approximately 24.90 kg; internal resistance 0.43 mΩ. Regarding charging parameters, at 25°C the float voltage per cell is 2.21~2.25 Vdc, and the equalization charge is 2.35 Vdc/cell; the current limits are 120.00A for charging and 2400A for discharging, respectively. For temperature, the nominal value is 25°C; discharge is permitted from -15°C to 50°C, and charging/storage is permitted from -15°C to 40°C. The self-discharge level is low, remaining below 10% after 90 days at 25°C, and it can be stored for up to 6 months. However, it must be fully charged before use; if the storage temperature exceeds 25°C, charge it in advance. The MSV-400 is designed for high-capacity float backup power applications, with telecommunications being a typical use area. Its manufacturing process meets IEC 60896-21/22:2004 and UL1989 certification (MH14533). With long life, high capacity, and maintenance-free features, this battery can provide reliable assurance for critical backup power systems.