I have been building for a while now and I’m wondering where everyone gets their batteries, I need something kind of custom right now so any suggestions would be appreciated!
Depends on where you are based there are battery builders in the forum
We need a location
https://www.imrbatteries.com/ is a good US vendor, and https://www.nkon.nl/ is a good EU vendor. There are more but letting us know your region is a better start 
E: woops I thought you meant cells, not packs.
I recommend @hyperIon1 (only one I’ve purchased from previously) as well as @psychotiller, @barajabali and @longhairedboy for US packs, and @pjotr47 for EU packs
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I’m in the US
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I build custom packs. I’ll pm you my email address.
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I also do custom packs just send me a pm.
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