Specification：Chaunven OP401S 40V Charger: Input: 100-240V 50/60Hz 72W;Output: 40V 1.8Ah;Charge Time: 3 hours or less;Operating Temperature: 32℉~104℉. Applicable Model：100% compatible with all Ryobi 40V lithium-ion battery,Great Replacement for Ryobi Battery Charger OP401,2-ports charging station available, charging 2 Ryobi 40V batteries at the same time, meets more of your charging needs. LED Indicator：The charger indicator will show the status of the charging process.It charges OP4020 compact battery in 2 hours and OP4050 high-capacity battery in 3 hours. Safe & Reliable：CE/FCC/RoHS Certified, built-in input low-voltage, output short, overload, over-current, and over-temperature protection, it equipped to protect and extend the life of the battery. After Sales Service：30-day exchange and return policy, up to 1 year warranty period. OP401 40V Dual Battery Charger for Ryobi