I would strongly advise against importing a suit heater battery canister from Sweden. EO cords are a consumable item (along with switches and the battery itself). When you need to get this repaired or refurbished you're looking at a giant shipping pita. Along with very long wait times. Perhaps the importer in Maine is also a repair facility but you are much better off with something made in Canada or at worst made in USA.Thoughts of the Nanight canisters for heat. I like the profile.
Nanight Power Canister
This single output canister from Nanight will power your heated suit or lights when you need it most. The canisters have 4 power settings so you can adjust the output to what you need, when you need it!The G2 192 Wh canister has a 30" cable. The 96 Wh has a 12" cable. Custom cable lengths are...saltblue.com
Just for reference, pre-covid I had 10 week shipping times from Martin at Techme in Germany. Each way...
So nowadays you're looking at ~6+ months round trip to send this battery in for any kind of repair.