View Single Post
Old Dec 06, 2012, 11:46 AM
Daedalus66 is online now
Find More Posts by Daedalus66
60 years of RC flying
Daedalus66's Avatar
Canada, ON, Ottawa
Joined Feb 2006
18,395 Posts
The key point about polarity is to use a three pin connector that fits (either the one that's on the battery holder with the 9x or a servo type connector as on some of the HK batteries) and make totally sure that the center wire is positive! The plug can be inserted either way, as the two outer pins are grounded.

I suspect that many of the sad stories we hear about reverse polarity result from inserting a two pin plug into the three pin socket -- the chances of getting it wrong are about 30%!!!

Others probably arise from plugging the balance connector of a 2s LiPo into the socket. There are, of course, many other ways to screw it up!
Daedalus66 is online now Find More Posts by Daedalus66
Reply With Quote