Accessory guideSmart Battery Charger

This Auto Veteran guide delivers a complete, professional workshop procedure for selecting and operating a smart battery charger across flooded, absorbed glass mat (AGM) and enhanced flooded battery (EFB) designs. It is written for working mechanics and serious DIY motorists who need to charge, maintain and diagnose 12-volt lead-acid batteries without damaging vehicle electronics or compromising battery life. You will learn how to match charger output and algorithm to battery chemistry, connect and disconnect in the safe order, run every stage from bulk charge to float maintenance, and interpret voltage and current readings against worked examples. By the end you can execute typical diagnostic jobs, avoid the mistakes that ruin batteries, verify charger calibration and recognise the point at which a professional with advanced test equipment should take over.