Honeywell OVG718US Ovale 4.2 Amp Smart Charging Station (Chrome) Smart Charge Protection. Automatically shuts off power to connected devices when their batteries are fully charged, preventing battery damage (from overcharging) and wasted power. Up to 4.2 Amp Fastest Charging Capacity for charging of multiple devices simultaneously (chargers with lower than 4.2A capacity will require much longer charging time to fully charge 2 tablets or smartphones simultaneously. AC Power Adapter. AC powered for fast charging of multiple USB devices.