CSB MU1500S 2V 1500Ah Valve-Regulated Sealed Lead-Acid Battery
The CSB MU1500S is a 2V VRLA-AGM battery belonging to the MU series. It has a 10-hour rate nominal capacity of 1500Ah and is primarily designed for high-capacity float standby applications such as telecommunications. The battery features a pure lead construction and AGM gas recombination technology, with a design float life of up to 20 years.
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Product Features
- Valve-regulated lead-acid (VRLA) design
- Absorbent glass mat (AGM) technology enables up to 99% gas recombination efficiency with no maintenance required
- Pure lead construction with proprietary elements
- Engineered for high-capacity float standby power applications
- Manufactured to IEC 60896-21/22:2004 and UL1989 certified (MH14533)
Application Scenarios
- Long-duration backup power for regional aggregation equipment rooms
- DC power systems for large communication hubs
- Communication base stations requiring ultra-long backup time
- Energy storage backup for remote sites and islands
- DC backup solutions for emergency command centers
- High-capacity standby power for core network equipment rooms
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
As a member of the MU series, the CSB MU1500S is a 2V valve-regulated sealed lead-acid battery officially designated for telecommunications applications. This series continues to evolve from the MSV and MSJ, focusing on 2V high capacity and long service life, specifically engineered for communication scenarios to provide extended backup power support.
At 25°C with a termination voltage of 1.80VPC, its 10-hour rate nominal capacity reaches 1500Ah; with a termination voltage of 1.75VPC, the 8-hour rate capacity is 1520Ah and the 20-hour rate is 1560Ah; under 1.80VPC conditions, the 8-hour rate capacity is 1464Ah. The diverse capacity data is sufficient to meet the long-duration backup power needs of communication sites.
This battery utilizes a valve-regulated sealed structure and Absorbent Glass Mat (AGM) technology, achieving a gas recombination efficiency of up to 99%. Its maintenance-free design makes it highly suitable for high-capacity float standby power systems. The plates use a pure lead construction with a proprietary formula, and the case is made of flame-retardant polypropylene, meeting UL 94-V0 specifications. The manufacturing process follows IEC 60896-21/22:2004 standards and has obtained UL1989 recognition under file number MH14533.
In terms of electrical and mechanical characteristics, the MU1500S can withstand a maximum charge current of 450A and a discharge current of 9000A, with an internal resistance of only 0.31mΩ. It is equipped with I3 threaded copper alloy terminals suitable for M10 bolts, with a terminal torque of 249±50Kgf·cm (i.e., 216±43Lbf·in or 24.4±4.9N·m). Dimensions are length 437.0±3.0mm, width 172.0±3.0mm, depth 497.0±3.0mm, and weight 91.50kg (approximately 201.67lb).
Regarding charging parameters, at 25°C the float charge voltage is set between 2.21 and 2.25Vdc, and the equalization charge voltage is 2.35Vdc. The nominal operating temperature is 25°C; the allowable discharge range is -15°C to 50°C, while charging and storage must be between -15°C and 40°C. In terms of self-discharge characteristics, storage at 25°C for 90 days results in less than 10% capacity loss, with a maximum storage period of 6 months; the battery must be fully charged before use, and if the storage temperature exceeds 25°C, a supplementary charge is required in advance.
Design life performance is outstanding: up to 20 years in float standby mode at 25°C, and over 12 years at 20°C according to Eurobat standards, placing it in the very long life category. Overall, with its 2V high capacity, low internal resistance, long life, and maintenance-free AGM construction, the MU1500S is an excellent choice for float standby power configurations in the telecommunications field.
