Perfect for battery stability while carrying out OBD diagnostics
Does exactly what it says on the box - just wish the leads were longer but will modify them to reach outside to the vehicle being worked on - it’s 13.6v power supply is superb for doing deep scan diagnostics keeping the battery topped up as under 12v they don’t like it - otherwise it’s a good buy for its price just shop around for under £100 it’s ideal for my workshop neat & compact too 👍🤙