FreeCAD

So, this is one of my favourite charging devices for the LiPo batteries I use in RC flying. It’s the SkyRC B6neo+. I mostly fly gliders, which require relatively modest battery capacities. The whole idea is to get the aircraft up with a bit of motor power, then trust the thermals — finding what we call a “bubble”, a column of rising air — start circling and just let yourself be carried. That’s been working reliably for many years, and I don’t see any reason from a physics standpoint why that should change anytime soon. So I don’t need to charge enormous batteries, which means I don’t need an oversized charger either. ...

I got into RC aviation in my mid‑20s. It was a lot of fun — but also filled with frustration and countless hours spent repairing airplanes I had crashed somewhere. About 30 years later, I decided to pick up the hobby again. This time I started with FPV drones. I bought a PNP version of a 3-inch drone (DarwinFPV Baby Ape II 4S). After some learning time, I decided to build my next drone from scratch, carefully selecting the parts and assembling everything myself (iFlight AOS 3v5). ...