before i ask 700 ?'s i wish you all a good season playing with you boats! i have been in the pond twice already. one was to recover my dock that came undone and #2 was showing my 2 sons the ice was not safe.next i wont be so literial!lol. my ? is i am running a9xl on a hex120 thanks fe chris btw. in a mean machine the boat rips good run times are around 3 mins with a642 would i be better with 16 cells and a 438 for longer run time. and amp draw. the only thing ever hot is the batts. and now i understand why u use lipos. any adise would be taken .your floatation and waterproofing has already saved me a fortune thank you all!
14 cells or 16
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with the 16 cells... what are you running now? I assume 12 cells? more cells in parallel will obviously give more runtime but wont help with amp draw. It will not change infact not drasticly but might go up with added weight of more cells. Changing your prop would help whether it may need less diameter or less pitch is kinda up to the boat. try both if you can afford a couple props. Try one same pitch but smaller dia. and try a similar dia but less pitch. There are a good amount of Mean machine build threads and test threads. check em out and good luck. let us know if you find any good feedback from a change.
duhhh, your thread sais 14 or 16 sorry. try 16 with a smaller prop. just my opinion -
mich thanks for responding all the threads i read here on ose are good i am not just saying that.i never owned anything rc before and everything i know is from here. i am running 14cells on 438 through a 642 i thought 16 cells on a 438 will give me same performance as 642 with longer run time.Comment
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16 cells is a bit much for a 9XL. It can be done but amp draw will be getting high. Definately use a small prop - x438 or y536 - but really you'd be better off using 4S LiPo. More voltage under load than 14 NiMH and longer run times if you get high capacity cells. One club member tried a 9XL on 18 cells with an x438 in his hydro and overheated his motor badly.
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fluid i have been running 14 3800 mah the motor and esc have been ice cold i.thought i read amp draw is slightly lowered with more volts. my thinking was going from a 642 to 438 would be about the same set up. i love its speed but if i could get just 10 seconds longer i would add a cell. lipos arent in the cards yet.economy around here is tough.Comment
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