The Laser Tools 77069 is an innovative current tester that plugs directly into the vehicle's fuse box, allowing for the immediate measurement of current draw on a specific circuit. This is an invaluable tool for UK workshops diagnosing "parasitic" battery drains. Instead of guessing, you can see the exact amperage being pulled. For a complete battery health check, we recommend using this alongside the Battery & Alternator Tester to ensure the entire charging system is functioning correctly.
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