RE: NEVER EVER BUY LOSI CHARGERS!!!
I have to agree that you can't decide the merits of an entire company based on one product. Yes, their electronics suck and shame on them for putting their name on such crap.... but their vehicles are well designed and built.
As for chargers, I've been using lipos in helicopters for years before they got really popular in cars and just got used to the fact that Thunder Power makes some of the best in the business. The TP610C is a great mid level charger but the TP1010C is their flagship.
I also PREFER chargers without built in power supplies, when you start to bundle things in then you get more complicated with more things that can break down. Besides, if you look at the good power supplies out there they are a good size and weight... makes you wonder how good the one in your charger is when that charger is the same size as mine that doesn't have a PSU in it.