[bwalvoord]

I'm building my first EV conversion and picked up a pair of vehicles from a local university auction. They are 72V dry cell setups with HPEVS AC-30's. I'm not sure that I will use either vehicle but one is a pickup truck which could be handy to have around the shop.

I was going to buy 6 new batteries but at $350/piece I don't want to invest that much in something I know I won't use long-term.

I'm looking for a used 72Vpack of either AGM or LiPo to start get my truck back on the road and possibly put it in my old 46 willys. If you have something within driving distance of SC, please PM or email me benji at walvoord dot net.

Thank you

 

[dtbaker]

I'm building my first EV conversion and picked up a pair of vehicles from a local university auction. They are 72V dry cell setups with HPEVS AC-30's. I'm not sure that I will use either vehicle but one is a pickup truck which could be handy to have around the shop.

I was going to buy 6 new batteries but at $350/piece I don't want to invest that much in something I know I won't use long-term.

I'm looking for a used 72Vpack of either AGM or LiPo to start get my truck back on the road and possibly put it in my old 46 willys. If you have something within driving distance of SC, please PM or email me benji at walvoord dot net.


Thank you

I have a set (37 x 100ah) of LiFePO4 Thundersky batteries I can pull out of my Swift and ship, along with matching charger if you'd like... They have about 15k miles on them and still have plenty of life left, so 'used' price applies, shoot me an email or PM.

I also have a set of new in-the-crate still (38x130ah) LiFePO4 CALB cells I am thinking about selling. along with a brand new Warp9 and a bunch of other stuff for a project I don't think I am ever going to get to.....

if any of this sounds interesting, let me know

 

[Ocean]

hey dtbaker, you have a Warp9? Any chance you have an adapter plate for a Chevy S-10 standard transmission??? does the warp9 have a tail shaft? What are you asking for it?

 

[dtbaker]

hey dtbaker, you have a Warp9? Any chance you have an adapter plate for a Chevy S-10 standard transmission??? does the warp9 have a tail shaft? What are you asking for it?

yes, I do have a Warp9 with standard tailshaft, new in crate still. no on the s-10 adaptor.

Lets not take over this thread any more so the OP can locate his batteries. Please contact me directly off thread, and perhaps we can work something out on the motor. email is best as I don't check for PMs that often.

 

[Ocean]

yes, I do have a Warp9 with standard tailshaft, new in crate still. no on the s-10 adaptor.

Lets not take over this thread any more so the OP can locate his batteries. Please contact me directly off thread, and perhaps we can work something out on the motor. email is best as I don't check for PMs that often.

Thanks dt... I will check in with you.

 

[Ocean]

I'm building my first EV conversion and picked up a pair of vehicles from a local university auction. They are 72V dry cell setups with HPEVS AC-30's. I'm not sure that I will use either vehicle but one is a pickup truck which could be handy to have around the shop.

I was going to buy 6 new batteries but at $350/piece I don't want to invest that much in something I know I won't use long-term.

I'm looking for a used 72Vpack of either AGM or LiPo to start get my truck back on the road and possibly put it in my old 46 willys. If you have something within driving distance of SC, please PM or email me benji at walvoord dot net.

Thank you

You might consider looking into Chevy Volt lithium batteries. They are pretty awesome. Search on Ebay - you can find smaller, individual units which are about 2kWh @ ~ 48v nominal @ 47ah (50v max charge level). You can also get an entire pack - 16kWh - very reasonable if you look around (ebay!). People also sometimes sell them here.

I have a setup in my first EV where I am using two of these 2kWh modules in series - 100v @ 47ah (4kWh block). Then I put 6 of these 4kWh blocks in parallel, so I have a 24kWh battery moving my little Bradley... and the range is really good.

I wonder if the max voltage on your controllers is near 100v? If so this would be an excellent option - even just 2x 4kWh blocks (in parallel) as described above.

btw one of the nice things about these Chevy Volt batteries - the physical dimensions - the footprint of each 2kWh module is about 9" x 9". So if you have a rack that was built for, say, 4 golf cart batteries, most likely the dimensions of the rack are about 11 (the length of one golf cart is 10.5) x 28 or 29" (the width of one golf cart is 7")... i.e. the rack accomodates 4 golf carts stacked side by side - 4x7 = 28". So anyways, this would fit 3x 2kWh
Volt Units (3x9 = 27"). If you happen to have TWO such racks (accomodating 8 golf carts) - you could then fit a total of 6x 2kWh Chevy Volt units. Wire them however you want... such as 2s and 3p... =)

Cheers!
-Ocean

 

[dtbaker]

You might consider looking into Chevy Volt lithium batteries. They are pretty awesome. Search on Ebay - you can find smaller, individual units .... Wire them however you want... such as 2s and 3p... =)

Cheers!
-Ocean

the difficulty of course with mismatched chunks of used batteries is that it will be difficult indeed to keep them balanced, which will mean a probably very short life.

If you are doing a proof of concept, or have a VERY limited budget, then you can get something rolling with a frankenstein pack, but it probably wont last.

 

[Ocean]

the difficulty of course with mismatched chunks of used batteries is that it will be difficult indeed to keep them balanced, which will mean a probably very short life.

If you are doing a proof of concept, or have a VERY limited budget, then you can get something rolling with a frankenstein pack, but it probably wont last.

This is certainly a good reason to get an entire Volt Pack and dis-assemble it yourself. Then you know you have batteries with all the same life on them. At the very least, if buying smaller blocks - one could look for the 4kWh units (which were a "block" of an original pack) - and run them in parallel. In this case the chance of imbalance is still very low because the units in series will always have come from the same pack. The parallel blocks will balance eachother and at worse perform at the level of the oldest block...

don't you think?

 

[bwalvoord]

the difficulty of course with mismatched chunks of used batteries is that it will be difficult indeed to keep them balanced, which will mean a probably very short life.

If you are doing a proof of concept, or have a VERY limited budget, then you can get something rolling with a frankenstein pack, but it probably wont last.

Thanks for the feedback guys. dtbaker, I sent you a PM

PM Sent