Protector Battery Surge 12V ONLY Qty  Description  Protector Battery Surge 12V ONLY Approx. Weight ~ 0.565 KG Availability  4 Code  4307 Barcode  5050943043072 Range  Electrical Products Section  Booster Cables and Battery Connections Price (Ex. VAT) £34.77 Price (Inc. VAT) £41.72   Suitable for 12 volt batteries and systems only. Protects the whole vehicle electrics whilst charging and welding. Shows a green light until it has protected the electrics from a surge, then shows a red light. When it shows a red light - please discard.