CSB MSV-650 Telecommunications Battery (VRLA-AGM, 2V 650Ah)

Product Features

Developed for high-capacity float-charge backup power applications
Maintenance-free; with absorbent glass mat (AGM) technology, it can achieve up to 99% gas recombination efficiency
Constructed with pure lead and proprietary elements
This product is classified as a VRLA (valve-regulated lead-acid) battery
UL1989 recognition (MH14533) obtained; product manufacturing complies with IEC 60896-21/22:2004 standard

Application Scenarios

Backup power for mobile communication core networks
Backup power for broadband access equipment
48V DC power supply systems for telecom equipment rooms
DC power supply for microwave relay stations
Standby power for optical access network central offices
Backup power for DC power supplies at communication base stations

Product parameters

Model：MSV-650
Voltage：2 Vdc
Nominal Capacity：650 Ah @10hr-rate
Ah Capacity：636.80 (8-Hr 1.75 VPC @ 25°C)
Ah Capacity：692.00 (20-Hr 1.75 VPC @ 25°C)
Ah Capacity：624.00 (8-Hr 1.80 VPC @ 25°C)
Max. Charge Current：195.00 A
Max. Discharge Current：3900 A
Internal Resistance：0.38 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：41.40 / 91.25 kg / lb.
Length (L)：307.0±2.5 / 12.09±0.10 mm / in
Width (W)：171.0±2.0 / 6.73±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

For large emergency and telecommunications applications, the CSB MSV-650 is positioned as a 2V VRLA-AGM valve-regulated sealed lead-acid battery in the MSV series, with its official application area being telecommunications; this series belongs to the VRLA 2V high-capacity, long-life telecommunications battery series. This battery uses a valve-regulated sealed lead-acid construction and absorbed glass mat (AGM) technology, with gas recombination efficiency up to 99%, and is maintenance-free. Its pure lead construction and proprietary element formulation are intended for high-capacity float backup power applications. Manufacturing follows IEC 60896-21/22:2004 and is recognized to UL1989 (MH14533). In terms of design life, it can reach 15 years in float service at 25°C and is greater than 12 years under the Eurobat (20°C) standard, corresponding to a very long life classification. Dimensions are: length 307.0±2.5 mm, width 171.0±2.0 mm, height 339.0±2.5 mm, weight 41.40 kg. The case uses flame-retardant ABS and complies with UL 94-V0. For operating temperature, nominal temperature is 25°C; discharge is permitted from -15°C to 50°C; charging and storage are permitted from -15°C to 40°C. For electrical parameters, nominal voltage is 2 Vdc. At 25°C, nominal capacity is 650 Ah at the 10-hour rate and 1.80 VPC; capacity is 692.00 Ah at the 20-hour rate and 1.75 VPC; 636.80 Ah at the 8-hour rate and 1.75 VPC; and 624.00 Ah at the 8-hour rate and 1.80 VPC. Maximum charge current is 195.00 A, maximum discharge current is 3900 A, and internal resistance is 0.38 mΩ. Float voltage is 2.21 to 2.25 Vdc/battery (25°C), equalization voltage is 2.35 Vdc/battery (25°C). Terminals are I4 threaded copper alloy terminals, accept M8 bolts; terminal torque is 126±25 Kgf·cm, 109±22 Lbf·in, or 12.3±2.5 N·m. Storage characteristics include low self-discharge: after 90 days at 25°C, self-discharge is less than 10%; it can be stored for up to 6 months at 25°C, and must be fully charged before use; if storage temperature is above 25°C, it should be charged earlier. With these characteristics, it is suitable for applications requiring long-term float backup, such as telecommunications.