You bet, it IS about 65 amp bursts, I saw a single 70 amp burst so far of the two runs I have done.

What other info would you like? Any other setup info? like gearing, weight?

I will post my 7s2p pack eagletree as well on that thread, and I will post a new eagletree plot when I get my new 7s2p pack made (as soon as I figure a good mounting).

But so far, it appears like it's about 2.7 - 2.8 v/cell under this kind of burst load at roughly 65 amps, and I think 70 amps is the limit that you want on these cells, me thinks as far as good performance goes, and temps.

Actually, I am going to do a full run with the eagletree and see if I can sqeeze it all in there, so you have more data to work with.

Be back in a bit. Also, check out my 'current electric vehicle conversion' link soon, I will update the pics with the motor mounted... :yes:

Basically, I just need the info requested in that thread. With all the data, I want to do the following:

- Calculate estimated burst current based on reported runtime on specific battery type/size, truck type, top speed (which auto factors gearing, tranny, tire size), and weight. 6x-7x average amperage multiplier seems to be pretty good for a ball park figure, but I'm sure it will vary depending on the above factors.

- Calculate mimumum lipo specs (mostly C rating) based on the estimated burst current so people can choose a lipo setup that won't be overloaded.

- I'll probably also throw together a section (or even a seperate page) where the user can enter their current runtime and battery specs, then enter desired runtime, and the script will calculate the needed battery.

That sounds like a great addition to it Brian! Just what ppl need! :party:

This run was done in thick grass, and it looks like this pack can deliver 1550 watts! It's not in the snapshot I am posting but later on in the data graph.

I will post this here, and on the other thread, kk?

I can sure feel the decrease in punch though, going from 2p to 1p pack, but it's still pretty good feel of power as I can wheelie at speeds up to roughly 32mph, of the ~<40mph top speed.

Also, I checked out the cumulative mah of the recorded run, it shows up as 2500mah! Every A123 pack I have had has always been quite a bit over th rated cap, which I'm not complaining about! :mdr:


The max amps was 85 amps too, maybe I will post another one with amps instead of watts?