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Battery Tender/Charger

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Seems my battery has died[1]. What battery charger will work with this battery that I could buy retail (e.g. advance auto)?

Or what about one of these[2]? Which one would fit? It says left-side positive terminal.Not sure if that's a drop in replacement for the OEM battery?

Braille Endurance Batteries

[1] Left the OBD2 adaptor in for one week without starting (in cold). I think this did it.
I'm not sure what you can find at Advance Auto. I use the CTEK 3300 battery charger/tender on all my batteries and it has been on the Boss for a couple months now. Works great and also has the capability of bringing back a dead battery to life via its desulphation mode. I picked mine up locally a couple of years ago but they can be found at many online stores too. Here is a link to the 3300. I hope you get this sorted out soon... Cold weather sucks!
I use the Batter Tender Plus as well... and like Gary, have more than one for my many toys. Only had one fail on my wifes Z4 and it was replaced under warrenty.

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