Capacitor For MM 4S

[Arct1k]

This looks like it will work on a MM on 4S as is 25v... $10 each though

http://www.shopatron.com/product/par....56.7400.0.0.0

Any thoughts or alternatives?

[BrianG]

Yeah, but that's a 2700uF cap, so it's bound to be a bit pricey. The ones on the MM are either 220uF or 330uF (can't remember which). You can probably find a better price online at an electrical distributer or something, you just gotta make sure it's a low-ESR type.

[Arct1k]

So brian - one should be enough as will be X4 cap with that installed... Correct...

[ICUBoy]

Hi guys
This one looks good and really cheap ($2.19 is about 2 USD)- do you need two per MM or just one?
http://www.jaycar.com.au/productView...Max=&SUBCATID=

Thanks!

[phildogg]

where are you putting these?
phil

[Arct1k]

Across the power leads close to the MM

Originally Posted by Arct1k

Across the power leads close to the MM

Kind of like this...

[KaztheMinotaur]

What does adding a capacitor like that do?

Would this benefit my Hydra 120?

Like it says on the novak site, "dissipate noise and smooth voltage spikes, and will also improve the performance of these speed controls by reducing the operating temperature by 10-15 degrees Fahrenheit."

Noise, doesn't bother me because I'm spektrum

Spikes, OK?

Temperature, is a definite YES! It keeps it at least 10 degrees cooler. I never go above 90-93 on hard bashing day, but that's with a fan also. It used to be 105-110 range before the cap. I think it made a bug difference.

[KaztheMinotaur]

So this would work for any ESC?

Looks like it it just wired in parallel with the battery leads?

[Arct1k]

Should do - I've just bought three of them - 1 for each of my MM that run 4s.

I won't bother on the MM that runs 3S on my crt .5

Arct1k, I did the same thing. Anything 3S and under I wouldn't bother with, but I always end up stealing my MM from my other rides, so I installed it on all of them. The extra $10 of security per MM is worth it.

I hate being down, and just can't bear to pay $275 for an ESC when the $100 one will do just fine, especially when I only bash.

[sikeston34m]

I've ran the Novak 2700uf cap on 6S with no issues.

It doesn't get warm or anything.

It produces ALOT of zap also. It's kinda like having 8 of those smaller caps installed, only in a much smaller space.

[Arct1k]

Errk - Tad worried about the zap but if it helps the MM from self destructing game on!

Come on USPS!!!

[BrianG]

You can stop the spark by initially hooking up the ESC through a charging resistor. Once the caps are charged up, you can then hook the batt directly to the ESC. This would be ideal for any setup regardless of voltage or capacitance rating. That initial spark wears out the connections after a while...