Hi.. some of us here in the U.K. have had overheating problems with the stock 1800kv motor and stock 80amp 6s lipo compatible ESC in the Blackjack.
When running the boat on 6s 5000mAh 40c lipo setup the motor gets very hot and in one or two instances the 3 wires to the motor (i should say that come out of the motor casing) have almost fused together, insulation melted.
On talking to Horizon Hobby here in the U.k., they said this.. If were using 6s in the Blackjack then we need to use the 1500kv motor from the Geico as it will run cooler due to the lower kv rating. They said the 1800kv motor gets way too hot on 6s as it can't cope with the heat build up. This makes no sense to us as the Blackjack comes with the 1800kv motor as standard, and is says 6s compatible on the box!
Id'e like to hear if anyone else had these issues on 6s lipo with the Blackjack 29??
Thanks
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