lipo 'C' rating question.

[Dandare]

Im i right in saying that, for example a 5000Mah 30c 2s battery can discharge safely at 150amps continuous ?

My question is how do i know what amps I'm drawing through the motor/ESC ?

[chris_dono]

Originally Posted by Dandare

Im i right in saying that, for example a 5000Mah 30c 2s battery can discharge safely at 150amps continuous ?

My question is how do i know what amps I'm drawing through the motor/ESC ?

Yes if the c rating was true, then 150amps is correct.

I know of only one speedo that tells you how many amps it drew, which is the GM 2010 version (after you store the telemetry data after a run).

[MrMagoo]

Fussion Exceed Pro can give you (from memory) peak and average current draws as well as motor RMP and the like.

[MattW]

In theory 150A continious, yes. Good luck finding any wire / connectors that can though!!

[F1END]

How does that work then?

MaH/1000 * C = Continuous Amps?

Therefore an Orion Carbon 6500 90C = 585 Amps?

[Matt Butcher]

The 90c that Orion state is Burst and not continuous. a nice bit of marketing there

[chris_dono]

Originally Posted by MattW

In theory 150A continious, yes. Good luck finding any wire / connectors that can though!!

Would love to see it as well !


don't forget it won't last as long if you pull more out of it either..

1 hour at 5a continuous
30 mins at 10a
15 mins at 20a
etc etc etc

so if you get to a point where you do pull 150a out of it, the wires would pop off and the battery would flatten almost instantly

Originally Posted by F1END

How does that work then?

MaH/1000 * C = Continuous Amps?

in theory yes, but reality is very different

[Dandare]

So regards to my 5000Mah 30c saddles, I don't really need to know what the 'C' rating is as I could never pull enough current to damage anything ?

I still can't grasp why we need to know it, lol.

[VintageRacer]

Originally Posted by MattW

In theory 150A continious, yes. Good luck finding any wire / connectors that can though!!

According to this table: http://www.powerstream.com/Wire_Size.htm you would need wire with a conductor diameter of around 6mm!!!