Voxx's new product gives you emergency jump start when your vehicle's battery is dead. No need to rely on expensive roadside assistance, jumper cables or portable batteries that lose their charge when you need them. Voxx Power System is pre-einstalled and connected directly to the car battery so you can use it with comfort and ease! Start your vehicle from the driver's seat with your Smartphone (iOS and Android) without ever having to go outside in the cold, heat or rain to connect jumper cables. Its convenient size allows installation under the seat or in the trunk. Compatible with all vehicles. It works without problems. Power on demand when you need it. Ideal for vehicles emergency, aging commercial fleets and more. Self-monitoring to avoid overload. Easily controlled via Android and iOS

Characteristics

500mAh Battery Specs:

• Nominal Voltage: 12v to 14v
• Peak Current: 850 Amps
• Cranking Current: 525 Amps
• Battery Capacity: 3500mAh
• Jumps Per Charge: >20 (typically)
• Maximum Recommended Engine Size (gasoline): 8L
• Maximum Recommended Engine Size (Diesel): 6L
• Environmental: IP67
• Storage Temperature: -40C to 85C
• Operating Temperature–Jump Starting: -25C to 60C
• Operating Temperature-Non Jump Starting: -25C to 85C
• Charging Current While Engine is Running: <2A
• Charge Retention: >6 Months
• Wireless Connectivity: Bluetooth Low Energy (BLE)
• Internal Battery Heater for Enhanced Cold Weather
  performance
• Model Number: POWV3.5

Brand new, box opened to take photos.

Normal Retail Price £249.99