2-Pack of Paraboards - Parallel Charging Board for Lipos with EC3 Connectors Don't spend all day charging your batteries one at a time! This Paraboard lets you charge and balance up to six lipo batteries at once! Features EC3 plugs for your batteries' main leads and JST-XH balance plugs ranging from 2S to 6S. Plugs right into most popular models of 6S lipo balancing chargers that have 7-pin balance ports with 2.5mm pin spacing Works with lipos for Blade 350 QX and 450, Parkzone T-28 Trojan, F-27Q Stryker, Extra 300, Spitfire, and F4U-A1 Corsair