The unit is a TZ34/20 Serial # 3406-264.
Could an issue in the ground control box cause something like this? I have had to do quite a bit of re-wiring in there to get everything to match the wiring diagram. Whoever owned it before me had no clue what they were doing in there.
Engineer 44, thanks for the emails. That controller looks like it is the older style that my lift had when I got it. I upgraded to this,
https://www.ebay.com/p/833062674. This is what the parts manual directed me too.
Here is a link to the charger I bought for it.
https://www.amazon.com/gp/product/B07X135RKC/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1
It also matches the parts manual info.
I haven't checked to make sure the batteries are correct yet. Is it possible they are putting out to much current or something? My guess would be that they are fine because they had worked fine the whole day before.
I've also looked and looked for information regarding upgrades and revisions and I can't find any sort of list of revisions or anything. Even the documents that detail the installation of the new "upgraded" controller that I bought are only available if you buy the kit. I couldn't find them online.
I'm assuming I would need a scope to check the wave form of the charger and verify that it is compatible with the controller and everything. At this point I only have a cheap clamp meter.