Lipo discharge q

[fastbaja5b]

Originally Posted by suicideneil

Define "full charge amp burst"- you didnt list the current draw so the *true* C rating can not be determined...

Wouldnt mind seeing some eagle tree graphes of Zippies though, there must be some around somewhere.

Not sure what you're wanting, I charged the 5000mah pack at 1C on my balance charger, then hooked it up to the logger and another identical pack (no logger) on the otherside of the Savage Flux

Powered it up took it for a bash

Downloaded graph as above.

Was hoping some of you lipo gurus would have answers!

I am thinking maybe we need to set the LVC at 3.5v a cell to avoid these below 6v drops near the end of the cycle but before a 3.2v / cell cut off kicks in. Because as I said before, LVC did not kick in.

[sikeston34m]

Originally Posted by fastbaja5b

Not sure what you're wanting, I charged the 5000mah pack at 1C on my balance charger, then hooked it up to the logger and another identical pack (no logger) on the otherside of the Savage Flux

Powered it up took it for a bash

Downloaded graph as above.

Was hoping some of you lipo gurus would have answers!

I am thinking maybe we need to set the LVC at 3.5v a cell to avoid these below 6v drops near the end of the cycle but before a 3.2v / cell cut off kicks in. Because as I said before, LVC did not kick in.

If I were you, I would double check everything. Make sure you have the latest firmware version uploaded to your ESC. I remember issues with the lvc on previous versions.

Looking at your graph, the run really started at about the 3 minute mark. The pack wasn't doing too bad until about the 15 minute mark. (12 minutes into the run).
It was at this point, it really began struggling to keep up with the load. Only 3400mah spent at this point.

Based soley on this graph, IMO, this isn't a 30C pack and it probably isn't a full 5000mah pack either.

What is this pack's size? Dimensions? What does it weigh?

[fastbaja5b]

Pack measures 137mm by 46mm by 25mm

Weight 320 grams

ESC is running V1.21 (Beta) firmware and has been for weeks.

[suicideneil]

Originally Posted by fastbaja5b

Not sure what you're wanting, I charged the 5000mah pack at 1C on my balance charger, then hooked it up to the logger and another identical pack (no logger) on the otherside of the Savage Flux

Powered it up took it for a bash

Downloaded graph as above.

Was hoping some of you lipo gurus would have answers!

I am thinking maybe we need to set the LVC at 3.5v a cell to avoid these below 6v drops near the end of the cycle but before a 3.2v / cell cut off kicks in. Because as I said before, LVC did not kick in.

You said you did another run with the Reedy pack hooked up and produced a voltage of 5.89 under load, but you didnt post the graph for use to look at & determine the C rating, nor did you say what the load was that produced that voltage drop, thats what I was wanting. If you posted the graph elsewhere, then a link would be handy (my psychic powers arent what they used to be....).