Got 20A #SmartCharger for lead-acid (and 12V #lithium) #batteries - also has 13,6V constant supply for #coding #car #ECU (so starter #battery doesn't run down whilst getting data from #OBD2)
It works well - but confirmed my suspicions in recent weeks (alas) that battery in my #GolfGTI is goosed (installed 2021 by #VW dealer, presumably as warranty replacement with 0 record on service history, only worked this out from date code)
I'd noticed slower cranking in the cold, battery losing charge quickly and OBD2 scans showing "low voltage warning" codes from LED lighting control.
Will replace it before it bites me in the arse during #winter - #EFB unobtanium but got #AGM on order for fairly good price (will have to change coding when it arrives!)
