Hey RC hobbyists! Got a battery with an EC3 connector but your ESC or charger only has an EC5 port? Don't solder or buy a new battery! These simple adapter plugs are the easiest fix. You get 3 pieces in the pack. They're basic, no-wire adapters: one end is a Male EC3 plug, the other is a Female EC5 socket. Just plug your EC3 battery into this adapter, and then plug the adapter's EC5 end into your EC5-equipped speed controller (ESC) or charger. It's that simple. Perfect for connecting different generations of gear or if you're standardizing your fleet. They're small, lightweight, and super handy to have in your toolbox for the track or field. No more compatibility headaches. Just make sure you're going from EC3 (male) TO EC5 (female) – that's the direction this adapter works. Grab this 3-pack so you always have a spare!