Chris, I clicked the link you listed and got to their website - then got nowhere - virtually no links from that point on. I did finally find the name of a US distributor in IL, but no link to their web site. Do you have any link to the company where you ordered your SPE charger?

In a message dated 8/21/2023 12:00:05 PM US Eastern Daylight Time, elec-trak-request@cosmos.phy.tufts.edu writes:

2. Re: Chargers (Chris Zach)

Chris, check out SPE Chargers. I bought several chargers from them. Top =
quality. Custom charge profile? No problem. (at least back when I bought m=
ine.) I felt they were a good value. .https://www.spechargers.com/en/ .
. (RAV DofTI) =