If you like power models, you'll love this
Discussion
SlipStream77 said:
22.2 volts of raw power?
Last time I checked, power was measured in Watts.
Most electric motors will spin faster if you apply more voltage.Last time I checked, power was measured in Watts.
These trucks will probably draw around 100amps peak. So the total power with these cells will be 2.2kw or almost 3hp.
Im not sure how many cells these trucks usually use, probably four so fitting six cells will give a decent power increase.
Larger helicopters use six, eight or even twelve cells (thats 50V).
It looks like quite good fun but I think you would break something pretty quickly.
Holst said:
Im not sure how many cells these trucks usually use, probably four so fitting six cells will give a decent power increase.
Larger helicopters use six, eight or even twelve cells (thats 50V).
It will all depend on how many are in series/parallel & as it uses Lipo's, 12 cells would give 44.4v, even @ 6 cells (22.2v) 6A, the truck will have plenty of power to tap into.Larger helicopters use six, eight or even twelve cells (thats 50V).
Volts = Power (think current/running water) Amps = distance/time per hour (think amount of fuel in tank) Watts = V x A (home appliances maximum is 3.120 KW).
I've been running Lipo's in RC A/C for over 7 years & the 'RC car' guys have struggled to make the change from Ni-Cad/NiMH amidst fears of 'exploding' batteries & scary tales of fires while charging.
Power is supplied to the Spitfire below via 11.1V 6000mA 12cells 3S4P Li-Po (x3 in series - x4 in parallel) & that equates to 3.7v x3 = 11.1 & 1500mAh x4 = 6A.........I use two of these batteries in parallel to give me more air time, so I'm actually getting 12A @ 11.1v.
That's mental - though I prefer being able to gun it and not flip the truck over. As cool as that is, I think I'd rather run the packs in parallel and double the running time. As far as things breaking on that - maybe, I have never had a drive train failure on my Savage 25, aside from a fried clutch and a stripped spur gear/slipper clutch. They are very resilient in general, I have had it land nose in from a 6' jump bounce end over end with no damage (other than a few scuffs) at all.
Matt
Matt
Stickers said:
I've been running Lipo's in RC A/C for over 7 years & the 'RC car' guys have struggled to make the change from Ni-Cad/NiMH amidst fears of 'exploding' batteries & scary tales of fires while charging.
The problem with the RC car guys is that they are racing to a set of rules.If you want more power in your plane then you just fit a bigger motor or more cells.
If your limited to two cells in your car then there is the temptation to overcharge the cells to get some extra power.
With NIMH cells you could overcharge them by quite a margin and get some extra power (at the expense of cell life)
When they tried the same with LiPo the cells exploded.
Holst said:
The problem with the RC car guys is that they are racing to a set of rules.
If you want more power in your plane then you just fit a bigger motor or more cells.
If your limited to two cells in your car then there is the temptation to overcharge the cells to get some extra power.
With NIMH cells you could overcharge them by quite a margin and get some extra power (at the expense of cell life)
When they tried the same with LiPo the cells exploded.
That should stop the Buggers cheating If you want more power in your plane then you just fit a bigger motor or more cells.
If your limited to two cells in your car then there is the temptation to overcharge the cells to get some extra power.
With NIMH cells you could overcharge them by quite a margin and get some extra power (at the expense of cell life)
When they tried the same with LiPo the cells exploded.
Stickers said:
Holst said:
The problem with the RC car guys is that they are racing to a set of rules.
If you want more power in your plane then you just fit a bigger motor or more cells.
If your limited to two cells in your car then there is the temptation to overcharge the cells to get some extra power.
With NIMH cells you could overcharge them by quite a margin and get some extra power (at the expense of cell life)
When they tried the same with LiPo the cells exploded.
That should stop the Buggers cheating If you want more power in your plane then you just fit a bigger motor or more cells.
If your limited to two cells in your car then there is the temptation to overcharge the cells to get some extra power.
With NIMH cells you could overcharge them by quite a margin and get some extra power (at the expense of cell life)
When they tried the same with LiPo the cells exploded.
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