On the topic of E-flite planes ... I have a dilemma about UMX batteries. Most of the planes/quads I've seen (my experience so far is just with the Nano QX and Whipit) use one small type of plug for their 1S batteries. But, the Ultrix I just bought uses a red JST connector, so I can't connect it to any charger I currently have. I don't think an adapter would help.
So now I'm left to choose to buy an $12 USB charger that would only work for that specific plug, or the $55 Spektrum S44, which could work for both types of 1 cell batteries.
https://www.amazon.com/dp/B00IRF3CA0/?tag=lstir-20
https://www.amazon.com/dp/B07M5C43ZF/?tag=lstir-20
Anyway, I was wondering if anyone has experience with either of them, and if someone with a larger collection of UMXs can tell me how much use I'm likely to get out of a charger.