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Need Help, Going to buy Headway's fo the Big 13 Pulling tractor

5481 Views 31 Replies 12 Participants Last post by  Jimdear2
Need Help, Going to buy Headway's for the Big 13 Pulling tractor

Looking for help and advice.

Well, the money's put aside and we are ready to buy 104 Headway 38120P batteries to power the 13 inch motor in the pulling tractor.:D

I'm looking for the best value since I'm retired. The $2000.00 or so is a big chunk for me so I have to get the best value I can.

The 72 volts we tried last season just didn't do it (of course the bad gearing choice I made didn't help:eek:).

100 batteries for the tractor and 4 spares. (the 4 will probably be used as a 12 volt control battery)

We plan to go with 50S 2P to start off this year and next year we will be adding 50 more batteries as we prove out the systems and home made controller until we reach a total of 200.

Looking for advice from people who sell and/or who have bought Headway batteries.

I can wait a while since pulling won't start until May of next year. I'll also be building a Simon/Jack charger and we are looking at various balancers.
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Hi Jim

How many Amp can delivred our controler?

I use Headway 38120S 10Ah on my suzuki DRZ coupled at a 700A controller. In my 26S 3P configuration the voltage drop at 2.3v per cell at 600A (20C) in the first second (1-2 sec.) of acceleration. After my small motor isn't capable to pull higher Amps.

If you use 1000A controller the 2P configuration will be not enought!!!
Depending of your gear ratio you probably need more Amps (torque) and less voltage (speed).

So, for a bit more money, a configuration 30S 4P could give to your 13" motor a good power for 15s. But you will be over the battery spec!!
Use headway at 30C discharge probably reduce a lot his life....
But it's probably a good test for not to much money....

Good luck!
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