Uncle Vinnie

I'm a little puzzled...I have a Leopard motor 4082 2200kv motor in my boat.
2 5000mah lipo 40C and a a Turnigy 180amps ESC

After a few seconds (15s) on full throttle suddenly it just loses its power and slows down to half the speed.
If I unplug the battery and plug it back in it does the same thing.

Any idea guys??

huck1199

If you have an Aquastar esc you have to program the cell count with the USB linker.  Are you sure it knows the proper cell count?

Diesel6401

My Feedback: (1)

The 180 esc is a Seaking re-branded as a Turnigy Marine, its not the aquastar esc's.

The Seakings have a history of the lvc pre-maturely kicking in. Solution is manuall setup the esc for 4s and 3.2v per cell and make sure you do the proper throttle calibration and that should help. The real MAJOR issue though is your only running a 4s1p setup and that motor can draw some serious amps which is dropping your packs voltage to trigger the lvc. The first 15 secs (or anytime the boat is attempting to get on plane) can spike the amps enough to drop the batteries voltage to the point it triggeres the lvc. Solution would be to do the above steps I mentioned and start running a 4s2p setup meaning (2) 4s batteries in parallel. Continuing to run that motor the way it is will eventually lead to puffed lipos and/or destroyed motor & esc from the batteries not being able to supply the system with enough amps. Also change your timeing to around 7.5 or 11.25. 4s2p is must do!

Uncle Vinnie

Thanks for the help guys...I was suspicious it was the LVC....a second opinion always helps.
Will rest it tomorrow and let you guys know.