Battery life

[38SuperDick]

Gents,
Bought a black 2018 3 months ago. 76k. Has:
Cat back pipes
K & N air
chip
20" Nittos
Fresh Ceracote

I drove it once a week but didn't due to the Hurricane two weeks ago.
Car has battery issue when I got it so it has a Autonation forever battery now. Thursday last it wouldn't turn over. I have warranty so called dealer and but on charger...took it to them Sat AM.
Still not back and they offer:
Cooling fan motor? DK why
SDC add on Transmission cleaner
SDC Brake fluid to Dot 4
SDC Cooling system and cleaning
SDC Full synthetic transmission svc 16 qt
Front end align
I just want the Electrical issue fixed.
I

 

[Majestic]

Charge battery all the way from positive terminal and ground, not negative terminal. Then reset BMS in Forscan and see if that fixes it.

 

[Lurch.sho]

I had similar issues with an electrical gremlin that just turned out to just be the battery giving out

Charge battery all the way from positive terminal and ground, not negative terminal. Then reset BMS in Forscan and see if that fixes it.

^^ I second this, it fixed my issue overnight and I haven't had anything new happen to write home about since. Also I dont know why the dealer would recommend replacing fluids and cleaning stuff like that, that seems like more matinence than repairs to me.

 

[SHOdded]

need to drive more frequently, and if not, put on a trickle charger on idle days to maintain battery health.

 

[76FoMoCo]

Also check for excessive Corrosion on the positive terminal adapter plate

 

[SHOdded]

what chip did you intall? like a hypertech or ...?