Melasta 18V replacement Charger for Li-ion Battery 48-11-1820 48-11-1815 48-11-1840 48-11-1828 Parameter: Output: 14.4V-18V / Input: 100-240V / Max DC: 3.0A Compatible battery model: replacement charger for Battery Packs,14.4V-18V ,such as Milkwaukee 48-11-1811,48-11-1815,48-11-1820,48-11-1822,48-11-1828, 48-11-1840, 48-11-1841, 48-11-1852, 48-59-1813, 48-59-1850 battery. Intelligent: charger communicates with battery pack to manage individual cell voltage, temperature, charge status, that make your work more relaxed and efficient. Compact size:super light ,you can carry it anywhere anytime, convenient to use. Warranty: 35- DAY return policy and 1 Year warranty.