Sunnypex 40ah 12v Solar Battery

Operating Environment: - 30°C to + 50°C, recommend + 10°C to + 30°C Warranty: 1 year Lifespan (calendar): LONG LIFE, 10 to 12 years according to EUROBAT (standby-operation at 20°C) Lifespan (cycle): Up to 500 cycles (load/unloading operations at 50% discharging depth)