PrometheusFD3S

The car was parked in the garage for the winter.

I started it weekly, but I can tell the battery wasn't getting enough charge.

Just got back from a vacation & the battery is totally dead.

I popped the car charger directly onto the battery, set it to AGM/ trickle charge @ 2amps, for a few hours, went to check it & no lights came one anywhere in the car.

Is applying the charger directly to the battery terminals the correct way for these cars?

Out of curiosity, I switched it to engine start mode @ 50amps, then the lights started flickering/ power cycling.

I'm going to give it more time to trickle charge & check it in the morning.

Any suggestions for a failed component that might be causing a draw?

PrometheusFD3S

Charging the battery @ 2amps wasn’t doing the trick over night, so I just bought a new battery, to be sure.

They tested the old battery this weekend & said it was fine, just completely drained.

they gave me an additional $25 off my new battery price.

I still assume I have a draw somewhere, but they said to charge these class of batteries @ 6amps to 10amps.

hopefully this helps someone in the future.