MU1500S 2V 1500Ah 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：MU1500S
Voltage：2 Vdc
Nominal Capacity：1500 Ah @10hr-rate
Ah Capacity：1520.00 (8-Hr 1.75 VPC @ 25°C)
Ah Capacity：1560.00 (20-Hr 1.75 VPC @ 25°C)
Ah Capacity：1464.00 (8-Hr 1.80 VPC @ 25°C)
Max. Charge Current：450.00 A
Max. Discharge Current：9000 A
Internal Resistance：0.31 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：91.50 / 201.67 kg / lb.
Length (L)：437.0±3.0 / 17.20±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 MU1500S belongs to the MU series of 2V valve-regulated sealed lead-acid batteries, with an official application area of telecommunications, and the series is positioned as a 2V high-capacity, long service life telecom battery developed from the MSV and MSJ. Its nominal voltage is 2Vdc, and at 25°C, 1.80VPC it provides a 10-hour rate nominal capacity of 1500Ah, 8-hour rate at 1.75VPC of 1520Ah, 20-hour rate at 1.75VPC of 1560Ah, and 8-hour rate at 1.80VPC of 1464Ah, meeting the capacity requirements for long-duration standby power at telecom sites. The battery uses a valve-regulated sealed structure and absorbed glass mat (AGM) technology, with gas recombination efficiency of up to 99%, and is a maintenance-free design suitable for high-capacity float standby power applications. The product uses pure lead construction and a proprietary formula, with a flame-retardant polypropylene case meeting UL 94-V0 requirements, and is manufactured to IEC 60896-21/22:2004, recognized under UL1989, recognition number MH14533. In terms of electrical and mechanical parameters, the MU1500S has a maximum charge current of 450A, maximum discharge current of 9000A, and internal resistance of 0.31mΩ. The terminal is an I3 threaded copper alloy terminal that accepts an M10 bolt, with a terminal torque of 249±50Kgf·cm, i.e. 216±43Lbf·in or 24.4±4.9N·m. The battery dimensions are length 437.0±3.0mm, width 172.0±3.0mm, depth 497.0±3.0mm, and weight 91.50kg, approximately 201.67lb. For charging and temperature conditions, at 25°C the float charge voltage is 2.21 to 2.25Vdc, and the equalizing charge voltage is 2.35Vdc. The nominal operating 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. For self-discharge, at 25°C it is less than 10% after 90 days, and the battery can be stored for up to 6 months; it must be fully charged before use, and if the storage temperature is above 25°C it should be charged sooner. For design life, it can reach 20 years in float standby service at 25°C, and more than 12 years under Eurobat at 20°C, placing it in the very long life category. Overall, with its 2V high capacity, low internal resistance, long life, and maintenance-free AGM structure, the MU1500S is suitable for float standby power configurations in the telecommunications field.