electrical - Car battery charging: a few questions on connecting negative clips to ground (which I couldn't find anywhere) - Motor Vehicle Maintenance & Repair Stack Exchange
Battery Charger & Conditioner- 12 volt Max charging rate 3.8 amps
WanuigH Car Battery Charger 12 V 4.5A 3-Stage Automatic Intelligent Battery Charge Device With LCD Display Easy to Use (Color : Red, Size : EU) : Amazon.co.uk: Automotive