CSB MU900S 2V 900Ah 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

Long-duration backup for regional aggregation sites
DC power for large telecom hubs
Base stations requiring extended backup runtime
Energy storage backup for island and remote sites
DC backup for emergency command centers
Large-capacity backup for core network sites

Product parameters

Model：MU900S
Voltage：2 Vdc
Nominal Capacity：900 Ah @10hr-rate
Ah Capacity：888.00 (8-Hr 1.75 VPC @ 25°C)
Ah Capacity：1032.00 (20-Hr 1.75 VPC @ 25°C)
Ah Capacity：872.00 (8-Hr 1.80 VPC @ 25°C)
Max. Charge Current：270.00 A
Max. Discharge Current：5400 A
Short Circuit Current：10580 A
Internal Resistance：0.36 mΩ
Terminal Type：I3 thread copper alloy terminal to accept M10 bolt
Terminal Torque：249±50 Kgf·cm / 216±43 Lbf·in / 24.4±4.9 N·m
Container Material：Flame-retardant 聚丙烯 (UL 94-V0)
Weight：55.90 / 123.20 kg / lb.
Length (L)：303.0±3.0 / 11.93±0.12 mm / in
Width (W)：172.0±3.0 / 6.77±0.12 mm / in
Depth (D)：497.0±3.0 / 19.57±0.12 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 MU900S belongs to the MU series and is a 2V valve-regulated sealed lead-acid battery using absorbed glass mat (AGM) technology, with gas recombination efficiency of up to 99% and no water replenishment required in normal use. This series was developed from the MSV and MSJ and is aimed at larger-capacity float standby applications, with an official application area of telecommunications. In terms of capacity, the MU900S has a 10-hour rate nominal capacity of 900Ah at 25°C, 1.80VPC; at 25°C, 1.75VPC, the 8-hour rate is 888.00Ah and the 20-hour rate is 1032.00Ah; at 25°C, 1.80VPC, the 8-hour rate is 872.00Ah. The battery's maximum charge current is 270.00A, maximum discharge current is 5400A, short-circuit current is 10580A, and internal resistance is 0.36 mΩ. For charging settings, at 25°C the float charge voltage is 2.21 to 2.25 Vdc per cell, and the equalizing charge voltage is 2.35 Vdc per cell. For operating temperature, the nominal temperature is 25°C, the discharge range is -15°C to 50°C, and the charge and storage range is -15°C to 40°C. Self-discharge is less than 10% after 90 days of storage at 25°C, and the battery can be stored for up to 6 months and must be fully charged before use; if the storage temperature is above 25°C, recharge should be done sooner. In construction, the MU900S uses a pure lead construction and proprietary formulation, with a flame-retardant polypropylene case meeting UL 94-V0. The terminal is an I3 threaded copper alloy terminal that accepts an M10 bolt, with a terminal torque of 249±50 Kgf·cm, 216±43 Lbf·in, or 24.4±4.9 N·m. Dimensions are 303.0±3.0 mm long, 172.0±3.0 mm wide, and 497.0±3.0 mm deep, and weight is 55.90 kg, or 123.20 lb. For design life, it can reach 20 years in float standby service at 25°C, and under Eurobat at 20°C it is a long-life product of more than 12 years. The product is manufactured in accordance with IEC 60896-21/22:2004 and is recognized under UL1989 with recognition number MH14533. These features make it suitable for high-capacity DC power applications such as telecommunications that require long-duration float standby.