hipwell Posted November 14, 2014 Share Posted November 14, 2014 (edited) Well I had a fully charged battery tonight and my charger doesn't have a discharge mode so when I got in after racing I set my speedo to 25% throttle and let the car rev for about 15 minutes. When I went to check voltage the motor was stinking red hot and smelled like an electrical fire so I quickly took the car outside to let it cool. I regularly race it upto 75c when on track for 5 min races but this felt way hotter than its ever got a racing but I didn't have my temp gauge to hand. It's working OK now but what are the chances that it's done some serious damage? Edited November 14, 2014 by hipwell Quote Link to comment Share on other sites More sharing options...
jordan_bench10 Posted November 14, 2014 Share Posted November 14, 2014 Its probably fue to the constant movement do you constantly hold your finger at one point ? I dont its on or off lol Quote Link to comment Share on other sites More sharing options...
hipwell Posted November 14, 2014 Author Share Posted November 14, 2014 I just held the trigger for 15 min but it was only a 25% and nowhere near where boost kicks in so I thought it would stay cool but evidently not .. Quote Link to comment Share on other sites More sharing options...
Thunderwolf Posted November 14, 2014 Share Posted November 14, 2014 it won't be cool, there will be far less air rushing over it sitting stil lthan driving around and running a motor at low revs is very inefficient, which generates alot of heat in the process. Quote Link to comment Share on other sites More sharing options...
hipwell Posted November 15, 2014 Author Share Posted November 15, 2014 So other than It still stinking the house out will there be any long term damage that means I'm going to have to splash out on a new motor next meet or did I catch it just in time? Quote Link to comment Share on other sites More sharing options...
jordan_bench10 Posted November 15, 2014 Share Posted November 15, 2014 Only you can tell is it stiff or easy to turn ? Is theyre any wobble in the shaft ? If so bearings have gone Youve probably just melted the top coating inside the can which is no biggie it will live just with a shorter life Quote Link to comment Share on other sites More sharing options...
Thunderwolf Posted November 15, 2014 Share Posted November 15, 2014 long as it still spins it should be fine. the bearings should be ok, the smell is probably just the brushes (if brushed) or some glue/lubricant vaporizing, not really anything to worry about. only real danger with heat is the magnets can become demagnetized, when too hot, not good for bearings either but the magnets should fail before the bearings do, unless really old. if anything you probs just shortened its total life span. for future reference when you come to discharge a battery, any battery you are far better off soldering up a small light bulb to plug into it instead, any house hold 60w bulb will do, will discharge at a low rate too which is better when you want to store it for awhile. Quote Link to comment Share on other sites More sharing options...
mattr Posted November 15, 2014 Share Posted November 15, 2014 How hot did it get? Quote Link to comment Share on other sites More sharing options...
hipwell Posted November 15, 2014 Author Share Posted November 15, 2014 its a 13.5 dynamite brushless. I didnt dare check the temp as i took it straight outside into the cold but it was mega hot, in a 5 min race i usually get to about 75c and it was way hotter to the touch than that. Its still spinning fine and seems to rev and boost up properly so hopefully itl be ok. Quote Link to comment Share on other sites More sharing options...
mattr Posted November 15, 2014 Share Posted November 15, 2014 If you've got no idea of how hot it got, no one can really tell you what damage was done. "Mega hot" isn't really very accurate. Quote Link to comment Share on other sites More sharing options...
humperdingle Posted November 15, 2014 Share Posted November 15, 2014 If you've got no idea of how hot it got, no one can really tell you what damage was done. "Mega hot" isn't really very accurate. Hotter than 'super-duper hot', though Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.