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Electric Stunt => Gettin all AMP'ed up! => Topic started by: Motorman on August 15, 2019, 07:29:37 PM
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What 6S battery do you have? What motor do you have? Most of us that are using 6S use the Thunderpower Prolite 2800 6S. If you go to a 5 cell you will have to up the capacity in most cases (Maybe like a 5 cell 3000-3300 ?) and raise your motor kv to high 700's low 800's.
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I got a 6s to match the motor I'm using but dang it's a lump. If I switch from a 6 cell to a 5 cell that still has enough capacity what's the worst that can happen?
You'll find out that batteries tend to have the same specific mass, i.e. a 5-cell, 3300mAh (59400 Joules) pack is going to weigh roughly the same as a 6-cell, 2800mAh (60500 Joules) pack.
Oh -- and when you use ESC and wire that's capable of handling 20% more current, that'll add weight, too.
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I got a 6s to match the motor I'm using but dang it's a lump. If I switch from a 6 cell to a 5 cell that still has enough capacity what's the worst that can happen?
Thanks,
Motorman 8)
If your 5s has enough head room (eg, you have around 30% after the pattern then the only difference I have found is that the added power to keep the RPM's up comes a little faster. Almost undetectable. I switched back to 5s 3000 because they were smaller and lighter. The Thunderpower in mass is above my pay grade. I will be getting a couple when they have their annual sale since I my ESC and wiring is for 6s. The active timer folks I know seem to think the 6s is better.
Ken
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I've stuck with 5 cells for exactly that reason.
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Percentage indication after flight I found to be not too reliable. For me, the cell voltage is a better indication. I reduced the nominal capacity until that voltage is 3,5 to 3,6 V.
Regards,
Wolfgang