Keep your automotive battery in top condition with the Duralast 80-Amp Engine Starter and 12-Volt Battery Charger (DL-80D). The DL-80 delivers 80 amps of engine starting power along with a 20-amp boost mode to deliver a quick charge to deeply discharged batteries and 6-amp<>2-amp charge/maintain rate for routine charging. Fully automatic, the DL-80D automatically adjusts the amperage rate during charging/maintaining and uses an advanced multi-stage charging algorithm. Other automatic features include bad battery detection, float mode monitoring, and reverse hook-up protection. The DL-80D is compatible with 12-volt standard, EFB, AGM, and lithium (LiFePO4) batteries. Built to withstand tough use, the DL-80 features durable metal casing with a molded carrying handle. Other features include push-button controls, LED indicators, and color-coded metal clamps.