Perfect Replcement: The charger can be replacement for 14-18V battery charger 48-59-1802, 48-59-1812, 48-59-1808, 48-59-1807, and 48-59-1804 Wide Compatibility: Our Charger compatible with 18V Battery 48-11-1815, 48-11-1828, 48-11-1840, 18-11-1850, etc. High Security: Built-in overcharge, over-circuit, over-voltage and over-heating protection to extend battery life of use, the charger got CE FCC ROHS certified and tested by manufacturer to match products. Superior Design: 110 volts - 220 volts input power and 14.4 volts - 18 volts output volts to charge your battery steadily. LED fuel indicator gives you a clear view of the charge level. ABS+PC material gives you the best quality . Protection functions: overcharge protection, temperature protection, overcurrent protection Indicator light status: There is an indicator light Application scope: lithium battery charging Input parameters: AC100-240 Output parameters: 12V/20V DC 2A Note: Installation guide not included, we strongly