Valve Regulated Acid Battery - Voltage: 12V - Ampere Hour 50AH | Capacity range: 1.2-28 (25°C) | Voltage class: 12v | Low self-discharge rate: ≤2%/month (25°C) | Long design life: floating life is 5 years (25°C) | High sealed reaction efficiency≥98% | Acclimation temperature range: -15~50°C | Operation temperature range: -20~50°C | Recommended operation temperature 25°C | |