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Running in your electro motor under water 12 years 3 weeks ago #7993

Looks like a nice charger. I've heard Imax is good value for money. Lots of options too.
But there are some cheap specimen on eBay that aren't genuine... so be careful of that.
This is what I use myself :


An Lrp Pulsar 3 with Graupner power supply. Doesn't have an integrated balancer though.
Nice feature about it is that is can function as it's own digitally adjustable power feed.
Very handy for running in motors (under water) for example...

running in motors under water? :side: what is that all about?

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Re: Running in your electro motor under water 12 years 3 weeks ago #7994

That's to give the brushes the right form and if you do it under water, the dust will not settle inside the motor...
Mind the volume please :



Started out as demineralized water... B)

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Last edit: by Edou.

Running in your electro motor under water 12 years 3 weeks ago #7995

so is that how you are supposed to run in all new motors?

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Running in your electro motor under water 12 years 3 weeks ago #7997

Not really, you can just go and run it too.
But it will make the motor more efficient which could give you an edge when racing for example.
And it's just a fun science experiment...

:silly:

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Running in your electro motor under water 12 years 3 weeks ago #7999

cant begin to imagine running the motor under water? how long for and at what speed?
how do you dry it out and how long for?

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Running in your electro motor under water 12 years 3 weeks ago #8000

cant begin to imagine running the motor under water? how long for and at what speed?
how do you dry it out and how long for?

I think I did a total of 7-8 minutes. Possibly a bit longer...
Before trying it, I actually mailed the guys at Lrp to check.
They said it was fine at 3 Volts and with demineralized water.
After that I opened it up, dried it out with a hair dryer and oiled the bearings a bit.


The nicely rounded brushes afterwards :


Not a great pic... :whistle:

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Last edit: by Edou.

Re: Running in your electro motor under water 12 years 3 weeks ago #8001

this link dispels a few of your suggestions. not that i know any different but it says leave it in for an hour and dont strip it after as it disturbs the brushes.
i am not arguing or disbelieving anyone as i have no clue whatsoever but it seems to be another topic in which nobody can give a definitive answer.
dc motors in water

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Re: Running in your electro motor under water 12 years 3 weeks ago #8002

The proof is in the pudding - looking at the picture, the brushes look round enough after 10 minutes.
And they are high quality (hard) silver ones.
Most reports I've seen do it even shorter. An hour is way too much...
Other than that I agree with most everything else.

Taking the motor apart is not preferred because it can change how the brushes seat

I like to take it apart though without removing the brushes completely.
And like mentioned before, dry it out with a hair dryer and oil it up.
Could be done with just the hair dryer on a non-rebuidable I think...

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Last edit: by Edou.

Re: Running in your electro motor under water 12 years 3 weeks ago #8013

Blub blub... :lol:


Meep meep...



:woohoo:

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Last edit: by Edou.

Re: Running in your electro motor under water 12 years 3 weeks ago #8015

hmmmmm i think i will give this method a miss.
probably blow something up knowing my luck :silly:

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