The SWL2500EFR is a high-performance, maintenance-free sealed lead acid (SLA) battery from Yuasa’s SWL (Super Watt Long) series. Designed for standby and cyclic use, it offers enhanced discharge capacity and extended service life, making it ideal for UPS, emergency lighting, and backup power systems.
- Nominal Voltage: 12 V
- Capacity (20-hour rate): 92 Ah
- Design Life: Up to 10 years (standby use at 20–25 °C)
- Typical Discharge Capacity:
- 10-min rate to 1.6 V/cell ≈ 2500 W
- Technology: VRLA (Valve Regulated Lead Acid) – AGM type
- Terminals: M6 (recessed front terminal layout)
- Internal Resistance: Approx. 6.0 mΩ
- Short Circuit Current: Approx. 1800 A
- Charge Voltage:
- Cycle use: 14.4–15.0 V
- Standby use: 13.5–13.8 V
- Operating Temperature:
- Discharge: –15 °C to +50 °C
- Charge: 0 °C to +40 °C
- Storage: –20 °C to +60 °C
- Dimensions:
- Length: 395 mm
- Width: 110 mm
- Height: 286 mm
- Weight: Approx. 31.5 kg
- Case Material: ABS (UL94:HB standard, flame-retardant options available)
