This rechargeable Challenge Engine Starter is great for emergency situations. The red LED indicates the charging status whilst the work light provides added convenience. The battery status is shown on the analogue gauge. Heavy duty booster cables, sealed lead acid battery. Dimensions: L36.5 x W11.5 x D37cm, weight 5.6Kg. Charge time to charge up internal battery is up to 30 hours. Suitable for petrol engines up to 1800cc and diesel engines up to 1400cc. LED status indicators. Heavy duty booster cable length of 0.55m. Built-in light. 300 amp booster current to assist engine starting. Requires full charge before use. Maintenance free sealed lead acid battery. Accessories included: 12V DC accessory socket (DC charger included). 12V power lead. AC adaptor.