Varun916

Thanks Rooster. I think I'll get that done tonight.

Thanks for the input everyone. Looks like the dealer first charged the battery, then ran all their tests so as expected, internal battery problems would have gone undetected. I disconnected the negative of the battery last night & put the voltmeter in series - I initially got ~100 mA of draw for the first few minutes, but this settled to ~3 mA & stayed there. I guess the time-until-idle isn't that long on the forester. At this point, I'm not really suspecting parasitic draw from the car. With the engine on, the battery voltage was over 13 V, so it does look like it's getting charged. After running the car last night, battery was at 12.78. Checking it this morning it was at 12.57. Since 12.6 is the actual max, I think this drop is probably ok. I want to leave it another night & see how much more it drops. Will post updates. Thanks again! --Varun

Thanks for the advice! I'm heading over to the dealership now, will ask them if they tested the battery after charging it & will do those tests tonight.

That's true, but I've driven many other cars for shorter daily drive distances without issue. Also, I'd expect a progressive drop in battery voltage & progressively harder starts. It really went from no problem starting to completely dead such that interior lights won't turn on anymore. I'll be testing the charge, as well as current for any parasitic drain. My suspicion is that the battery is probably ok, but something might have shifted causing a short.

Hi everyone, New here & did a search but didn't see anything relevant. I have a few-months old 2015 Forester that I'm loving so far. I've recently had some problems with the battery however. A few days ago the battery died completely while the car was sitting in my garage(had not been driven for ~3 days, but regular 15 min daily drives before that). The anti-theft, ignition, everything was completely dead. I used my backup-up battery to charge the battery a bit & was able to get the ignition lights on, but it didn't have enough juice to start the car. I blame the backup for that. Anyway I had roadside assistance jump the car & I drove it around for 20 minutes. Turned it off & was able to restart no problem. 24 hrs later, I try to turn it on again & the battery is dead once more. Ignition lights turn on, but not enough juice to turn over the cylinders. So I had the car jumped & taken to my local Subaru dealer, who claims they did a full diagnostic & see nothing wrong. They said the battery voltage is fine too. However there's clearly a problem here, I suspect a short somewhere that's draining the battery. Does anyone have any advice on where I can start ohm'ing out connections to see what's wrong? I'm an electrical engineer, so I feel like I can diagnose this on my own. Thanks for the help! --Varun