CSB MSJ-150 Valve-Regulated Sealed Lead-Acid Battery 2V 150Ah
For telecom float backup applications, the CSB MSJ-150 in the MSJ series is a 2V VRLA-AGM battery; its case uses flame-retardant ABS, and its terminals use I4 copper alloy. At the 10-hour rate, nominal capacity is 150Ah (1.80VPC@25°C), and the design float service life is up to 20 years.
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Product Features
- Battery type is VRLA (valve-regulated lead-acid)
- Uses AGM (Absorbed Glass Mat) technology, maintenance-free, with gas recombination efficiency up to 99%
- Constructed of pure lead with proprietary elements added
- Developed for high-capacity float-charge standby power applications
- Manufacturing process complies with IEC 60896-21/22:2004 and is UL1989 recognized (MH14533)
Application Scenarios
- Backup for DC power supplies, found in communication base stations
- Central office standby applications, including optical fiber access networks
- Microwave relay stations requiring DC power supply
- 48V DC systems serving telecommunications equipment rooms
- Backup power for broadband access equipment
- Backup power for mobile communication core networks
Product parameters
- Model：MSJ-150
- Voltage：2 Vdc
- Nominal Capacity：150 Ah @10hr-rate
- Ah Capacity：156.80 (8-Hr 1.75 VPC @ 25°C)
- Ah Capacity：162.20 (20-Hr 1.75 VPC @ 25°C)
- Ah Capacity：152.80 (8-Hr 1.80 VPC @ 25°C)
- Max. Charge Current：45.00 A
- Max. Discharge Current：900 A
- Short Circuit Current：2848 A
- Internal Resistance：0.54 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：12.80 / 28.81 kg / lb.
- Width (W)：106.0±1.5 / 4.17±0.06 mm / in
- Height (H)：339.0±2.5 / 13.15±0.10 mm / in
- Depth (D)：170.0±2.0 / 6.69±0.08 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
CSB MSJ-150 belongs to the MSJ series and is a 2V VRLA-AGM battery; the official application direction is telecommunications. The series is positioned on the VRLA 2V platform, emphasizing high capacity and long life for backup power applications. When used in float service at 25°C, design life can reach 20 years; under the Eurobat 20°C standard, it falls into the >12-year ultra-long-life category. Internally, it uses a valve-regulated sealed lead-acid system and AGM absorbent glass mat technology, with gas recombination efficiency up to 99%. It is a maintenance-free design and uses pure lead construction and proprietary formulation elements.
In terms of construction, the MSJ-150 uses a flame-retardant ABS case rated to UL 94-V0. Terminals are I4 threaded copper alloy and can accept M8 bolts; terminal torque is 126±25 Kgf·cm, 109±22 Lbf·in, or 12.3±2.5 N·m. Dimensions are width 106.0±1.5 mm, height 339.0±2.5 mm, depth 170.0±2.0 mm, and weight 12.80 kg (28.81 lb). The product is manufactured in accordance with IEC 60896-21/22:2004 and has UL1989 recognition (MH14533).
Regarding capacity, at 25°C and 1.80VPC at the 10-hour rate, the MSJ-150 has a nominal capacity of 150Ah; at 25°C and 1.75VPC, the 8-hour rate is 156.80Ah and the 20-hour rate is 162.20Ah; at 25°C and 1.80VPC, the 8-hour rate is 152.80Ah. For electrical specifications, nominal voltage is 2Vdc, maximum charge current is 45.00A, maximum discharge current is 900A, short-circuit current is 2848A, and internal resistance is 0.54 mΩ. Therefore, it can be used in communication backup applications that require long-term float standby.
Charging parameters and temperature range: at 25°C, float voltage is 2.21 to 2.25 Vdc/battery, and equalization voltage is 2.35 Vdc/battery. Nominal operating temperature is 25°C; discharge is permitted from -15°C to 50°C, and charging and storage are permitted from -15°C to 40°C. Self-discharge performance is less than 10% after 90 days at 25°C; it can be stored for up to 6 months; it must be fully charged before use, and if storage temperature is above 25°C, recharge is required earlier.
Overall, the MSJ-150 uses a 2V cell format, provides 150Ah-class capacity, combines long-life design with maintenance-free AGM construction, and targets high-capacity float backup power needs such as telecommunications; it is suitable for long-term float standby under nominal 25°C conditions.
