12V 3500W Valve-Regulated Sealed Lead-Acid (VRLA) Battery — CSB XPL3500
For applications such as data center uninterruptible power supplies that require long-duration backup power, the CSB XPL3500 from the XPL series can be selected. This battery is a 12V valve-regulated sealed lead-acid type, manufactured with pure lead and AGM technology, with a 5min-rate nominal capacity of 3500W and a float-charge design life of up to 10 years.
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Product Features
- VRLA valve-regulated lead-acid battery
- Uses AGM absorbent glass mat separator technology, is maintenance-free, and can achieve 99% gas recombination efficiency
- Built on a pure lead construction and incorporates proprietary elements
- Research and development is focused on two applications: high-rate UPS and float-charge standby power
- Manufacturing follows IEC 60896-21/22:2004, and UL1989 recognition (MH14533) has also been obtained
Application Scenarios
- UPS extended-runtime backup for data centers
- Long-duration standby power, suitable for large equipment rooms
- Long-duration discharge backup for industrial UPS
- Extended-runtime backup for financial systems
- Long-duration standby power for communications hubs
- UPS extended runtime, deployed in medical centers
Product parameters
- Model:XPL3500
- Voltage:12 Vdc
- Nominal Capacity:3500W @5min-rate
- Watts per Cell:862.33 (30-Sec 1.67 VPC @ 25°C)
- Watts per Cell:558.00 (5-Min 1.67 VPC @ 25°)
- Watts per Cell:318.67 (15-Min 1.67 VPC @ 25°)
- Max. Charge Current:29.20 A
- Max. Discharge Current:750 A
- Short Circuit Current:2206 A
- Internal Resistance:3.83 mΩ
- Terminal Type:I2 thread lead alloy terminal to accept M6 bolt
- Terminal Torque:51.7±10.3 Kgf·cm / 44.9±9.0 Lbf·in / 5.1±1.0 N·m
- Container Material:PP (UL 94-HB) standard, flame-retardant (94-V0) available upon request
- Weight:25.80 / 56.86 kg / lb.
- Length (L):261.0±2.5 / 10.28±0.10 mm / in
- Width (W):168.5±2.0 / 6.63±0.08 mm / in
- Height (H):213.5±2.5 / 8.41±0.10 mm / in
- Design Life:Up to 10 years in standby service at 25°C; Eurobat (20°C): >12 years, Very Long Life
- Float Charging Voltage:13.5 - 13.8 Vdc/battery
- Equalizing Charging Voltage:14.4 - 15.0 Vdc/battery
- Operating Temperature:discharge -15°C to 50°C; charge/storage -15°C to 40°C
Product details
CSB XPL3500 belongs to the XPL series and is a 12V top-terminal valve-regulated sealed lead-acid battery. It internally uses absorbent glass mat (AGM) technology, with a maximum gas recombination efficiency of up to 99%, and is a maintenance-free design. The XPL series targets large-capacity pure lead VRLA and is suitable for long-duration standby applications requiring large-format individual cells; the manufacturer lists data center UPS as the application area.
Dimensions and terminals: length 261.0±2.5 mm, width 168.5±2.0 mm, height 213.5±2.5 mm, weight 25.80 kg; terminals are I2 threaded lead alloy, can accept M6 bolts, torque 51.7±10.3 Kgf∙cm, equivalent to 44.9±9.0 Lbf∙in or 5.1±1.0 N∙m. The case uses PP (UL 94-HB), and a flame-retardant (94-V0) version can be supplied upon request.
Electrical parameters: at 25°C and 9.60V per cell, the 5min-rate nominal capacity is 3500W; at 1.67 VPC, 30-second power per cell is 862.33 W/cell, 5-minute power per cell is 558.00 W/cell, and 15-minute power per cell is 318.67 W/cell. Maximum charge current 29.20 A, maximum discharge current 750 A, short-circuit current 2206 A, internal resistance 3.83 mΩ.
Charging and temperature: at 25°C, float charge voltage is 13.5 to 13.8 Vdc/battery, equalization charge voltage is 14.4 to 15.0 Vdc/battery. Nominal operating temperature 25°C; discharge temperature -15°C to 50°C, charging and storage temperature -15°C to 40°C. At 25°C, self-discharge is less than 10% after 90 days; it can be stored for 6 months, or up to 10 months if equalization charging is performed. It must be fully charged before use; if storage temperature is above 25°C, charge it earlier.
Life and certifications: design life is 10 years under 25°C float standby service, and more than 12 years per Eurobat (20°C), which is Very Long Life. The product is manufactured according to IEC 60896-21/22:2004 and has UL1989 recognition (MH14533). Therefore, it is suitable for applications such as data center UPS that require long-duration float standby.