RCU Forums - View Single Post - A few basic LIPO questions
View Single Post
Old 04-23-2014 | 05:47 AM
  #7  
JENC
Junior Member
 
Joined: Jul 2006
Posts: 21
Likes: 0
Received 0 Likes on 0 Posts
From: Hadsten, DENMARK
Default

Originally Posted by tacx
Lipos are no different than other batteries when it comes to HOW it supplies power.

Batteries, including lipos, do not push, shove, or force power to your system. They are only a source of power that your system can draw from.

Think of your Lipo like a gas tank in your car.
MAHs are the size of the tank.
Discharge c rating is the size of the fuel line to the carburetor.

Your system only draws what it needs from the battery. The battery does not push power into your system. In the car analogy, it doesn't matter how much fuel the tank is holding, the engine will only draw what needs to run. As you press the accelerator the engine will draw more fuel. If the fuel line ( c rating ) is larger than it needs to be it makes no difference to the engine as long as it can supply what the engine wants.

If the fuel line ( c rating ) is to small the engine cannot get enough fuel to run properly.

As to your question weather too small a discharge c rating will damage your system?. I have never heard of that happening. If anything it can damage the battery, because it can't keep up with the demand.

Thanx for a fine description.
It's just as you describe it, I would expect it to Work.

But I have seen more threads describing the problem of: " too small a discharge c rating will damage your system"
and it is the very technical reason for this to happen (on LIPO systems) that puzzles me and I would like to understand. As I otherwise understand it just as you describe it.

It seems richrd knows of the overheating/damaging issues. Perhaps he can elaborate.

Also see the "...100Amps is not enough for out 130Amp motor! It will create heat, cogging, resistance, some more heat and so forth in a vicious circle. "
above.

If others can - please add in.

(I have read tons of "understand lipo" threads to find the reason with no luck)

Last edited by JENC; 04-23-2014 at 05:51 AM.