The 20 V 4.5 A charger and 20 V 4.0 Ah Li-Ion battery pack is the ideal solution for keeping all your 1 for All system–compatible power tools fully charged. This kit includes an efficient charger and a high-performance battery, designed to deliver power, safety, and reliability with every use. The 20 V 4.5 A charger (Ref. 50003251) is built with low-dissipation electronic components, reducing heat generation and improving efficiency. It incorporates hardware and software multiple-protection system to ensure safety during charging. It also integrates an advanced protection system against over-discharge, overheating, and overcurrent, ensuring safe charging and prolonging battery life. The 20 V 4.0 Ah Li-Ion battery (Ref. 50003242) offers long runtime thanks to its lithium-ion technology, featuring low self-discharge and no memory effect to ensure maximum charging capacity. Equipped with an integrated protection system against overload, overvoltage, and short circuits, it ensures safe operation at all times and extends the tool's service life. It also has a LED battery indicator light that allows you to know the available energy quickly and accurately, avoiding unforeseen power shortages during work. Always keep your tools ready with this Cofan charger and battery pack, designed for demanding works.