EV-Peak e3 (3Amps, 35Watts) 2S, 3S, 4S (7.4V, 11.1V, 14.8V) AC Lipo Balancing Battery Charger w/ WARRANTY SAFETY: The charger features LiPo Cell Balancing. So each cell will be charged to the proper voltage level independently. This removes the chance of overcharging a cell, potentially resulting in a fire. CONVENIENCE: The charger is quite compact. And it plugs directly into a wall outlet. It can be used with outlets around the world since it can handle 100V-240V with its auto-switching power supply. It features 4 easy to understand LED lights that indicate to the user how full the battery is. 1 LED indicates 25%. 2 LED lights indicates 50%. 3 LED lights indicates 75%. And 4 LED lights, of course, indicates a full charge. RELIABILITY: The e3's goal is to provide reliability. EV-Peak uses the best components on the market so that the charger will work and work well for the customer. Also, since it is so efficient, there is no need for a fan. Fans can wear out, make noise, and fail after time. WARRANTY: EV-Peak offers a great 1 Year warranty on their chargers. This warranty covers manufacturers defects. This warranty does not cover end-user misuse or abuse. In the event of a repair/replacement the customer is responsible for shipping the unit to us in NY, while we will cover the cost of shipping the unit back to the customer.