New warning insert in MMM box: "DO THE MATH!"

[What's_nitro?]

Originally Posted by skellyo

What this means it that now any users of MaxAmps packs will be more confused than ever! Since MaxAmps only specifies a surge rating now, users will have no logical way to do the math on the Castle insert.

It's like Briggs & Stratton using "gross torque" on their engines instead of HP because THEY think it is a better way to rate the engine...... No other company uses that method... So it makes it much harder for consumers to compare different brands.

[fastbaja5b]

Well I run IB 5000mah 40C packs, 40C being the stated constant rating, so 200 Amps, my eagletree has shown a max amp spike of 121 amps from the Savage Flux so I have a 40% buffer.

I can live with that :)

[emaxxnitro]

maxamps 60c? what a lie

Originally Posted by Metallover

Not too many people would run a 1515 sized motor with a MM either. The MMM just deals with more power.

only us crazy mofos do it




im really enjoying these turn of events the last few days

[JThiessen]

I havent been into the calculators in a while, so is there a way to have it also calculate maximum amp draw based on motor and gearing? It might already be there....just havent looked.

[Pdelcast]

Believe me, there are a lot of people trying to run 15C 3200mah packs... /sigh

[BrianG]

Originally Posted by JThiessen

I havent been into the calculators in a while, so is there a way to have it also calculate maximum amp draw based on motor and gearing? It might already be there....just havent looked.

No such thing yet. Even with specifying gearing and such, there are simply too many variables to consider to be anywhere near accurate. The best you can do is estimate average current draw by your runtime and battery capacity figures, and then estimate burst current by multiplying the average current by 6-8.

Originally Posted by Pdelcast

Believe me, there are a lot of people trying to run 15C 3200mah packs... /sigh

On the next version of your ESCs, incorporate a mechanical fist that comes out and punches the user if they try to use such packs.

[jhautz]

Seems if you want to spec a minimum capable battery for an esc, there should be some standard to defining a batteries performance. Anyone can write anything they want on the side of a lipo and have people buy it these days. Sure makes it hard for the consumers to wade thru the muck when the ESC manufacturers are saying minimum rating of a battery needs to be one thing, except for some brands that arent good no matter how they are rated, and the leading lipo pack builder has stopped using those rating standards all together.


Wait a minute.... What did I just say?


I don't get it anymore. I liked the days of figure it out yourself, burn a few things up and eventually you learn what actually works.

[pinkpanda3310]

Originally Posted by BrianG

No such thing yet. Even with specifying gearing and such, there are simply too many variables to consider to be anywhere near accurate. The best you can do is estimate average current draw by your runtime and battery capacity figures, and then estimate burst current by multiplying the average current by 6-8.



On the next version of your ESCs, incorporate a mechanical fist that comes out and punches the user if they try to use such packs.

Is that why you haven't included this on your calc sheets?http://www.rc-monster.com/forum/show...motor+amp+draw

[JThiessen]

Originally Posted by BrianG

No such thing yet. Even with specifying gearing and such, there are simply too many variables to consider to be anywhere near accurate. The best you can do is estimate average current draw by your runtime and battery capacity figures, and then estimate burst current by multiplying the average current by 6-8.



On the next version of your ESCs, incorporate a mechanical fist that comes out and punches the user if they try to use such packs.

Just figures.....sometimes looking at all these electrical numbers gives that feeling of doom I had 20 years ago in my EE and EEET classes in college. If it weren't for HP calculators, I would never had made it through those classes.

[BrianG]

Originally Posted by pinkpanda3310

Is that why you haven't included this on your calc sheets?http://www.rc-monster.com/forum/show...motor+amp+draw

Well, there are a couple reasons I didn't add that (yet):

- I forgot about it
- No feedback.

Originally Posted by JThiessen

Just figures.....sometimes looking at all these electrical numbers gives that feeling of doom I had 20 years ago in my EE and EEET classes in college. If it weren't for HP calculators, I would never had made it through those classes.

I still have my trusty old HP48gx, with a whopping 512k RAM card. lol.

[whitrzac]

Originally Posted by What's_nitro?

It's like Briggs & Stratton using "gross torque" on their engines instead of HP because THEY think it is a better way to rate the engine...... No other company uses that method... So it makes it much harder for consumers to compare different brands.

no, they do it to hide the fact that they can't make power...

[suicideneil]

I like this latest development, its a kick in the teeth for noobs and those who mislead noobs. If your lipo puffs, then you know the manufacturer mislead you on its ratings/capabilities. If it doesnt puff, then its all gravy.

I think the 80amps minimum thing applies to mild setups though, rather than extreme setups (same reason for having mild gearing with nimhs and nicads).

[RBMike]

People need to start thinking about the power systems as just that "SYSTEMS". The ESC, Motor ,Battery & gearing are the system. The components of the SYSTEM are individual peices that need to be suitable for use with each other.

You would not go down to tire rack & get a set of subcompact car tires and expect them to work on a Boeing 747-400. Yes I know the 747 uses tires, but not ones ment for a corrola.

So yes, we all need to do the math.

[TexasSP]

Your right, the Boeing 747 tires cost as much as a corolla.