Normally I'd ignore a post like this because I honestly am not picking a fight but disagreeing or criticizing someone on the internet invariably turns into a fight. The original poster specifically asked for nitro suggestions and said he had no interest in electric but from what I can understand of your post you only bring up electric. By doing so you're going against the grain of the thread, creating friction and not helping the environment of the forum.

The thing that really got me though, besides the crude grasp of proper grammar, is the statement about batteries I quoted above. I've never heard of a battery reversing polarity. I'm not a battery expert but I do know the cathode and anode materials are chosen so that electrons will only flow one way, otherwise the batteries wouldn't work. You'd literally need to change the chemistry inside the battery to reverse polarity. And I can pretty much guarantee a lipo will burst into flames before it got anywhere near reversing polarity.

Also a cheap battery is not necessarily a bad battery. It's capabilities may be lower but stay within those capabilities and it will be fine. Push it too hard and bad things can happen, the same bad things which can happen to expensive batteries when they're pushed too hard. Can you please tell us what brand(s) you consider good?