CTEK 40-658 NXT 5 Fully Automatic 4.3 amp Battery Charger & Maintainer 12V

All-in-one 12 V charger: Supports lead-acid (WET, MF, Ca/Ca, AGM, EFB, GEL) and lithium-ion (LiFePO₄) batteries from approx. 1.2 Ah up to 160 Ah. Fully automatic operation — simply connect, select the mode, and let it manage the rest; great for cars, motorcycles, seasonal storage and more. Spark-free operation, reverse polarity protection, compact robust housing (IP65 rated), and included Connect U-terminal for a permanent battery mount. Built-in desulphation and 'Recond' modes recover deeply discharged or sulphated lead-acid batteries — extending battery life and performance. Smart temperature sensors adjust the charging voltage for extreme hot or cold conditions (-4 °F/ -20 °C to +122 °F/ +50 °C) for optimal results. *Recondition your battery once per year and after deep discharge to maximize lifetime and capacity.