Tim,
As we do more FE goods we learn more and more each year. Lipos have also been changing quite quick. Take a look at this copy/paste from our Motley Crew manual.
PLEASE READ:
Notes about using LiPo batteries in your boat: The Motley Crew uses the AquaCraft 60amp ESC. This ESC has a built in stutter bump system that cycles the power to the motor when the battery voltage reaches 12V. This is designed to warn you of impending low battery voltage and subsequent shut down. It also has a 10.8V battery cut off safety system that shuts the power down to the motor so not to damage the batteries.
Having said this: As a rule of thumb we have found it best in very high current draw application like an RC boat to not to use more then 70% of the rated capacity of the battery pack, per run. We have also found that when in doubt and using the recommended propellers you can expect to use about 1000mah (give or take) per minuet of operation. Using this you can better judge your runs knowing you’re taking the very best care of your battery pack investment.
Grimacer says: Its best to test this by making a timed 2 min run, charge the batteries back up and note the amount of mah the pack allowed back in. Do this each and every time to make a prop change or any other significant change to your setup! Then adjust your driving time so you don’t go over the 70% usage mark.
Also keep im mind that car packs (hard case) could be used but if you get them wet they can store water causing the internal metal parts of the pack to corrode; in turn causing short pack life. We highly recommend the use a dedicated marine LiPo packs.
