Jump start 2010 with dead battery

Once or twice I salvaged an embarrassing situation after leaving a light or something on in my Gen 1, by pulling the accumulator pump relays before attempting to start.

Even a badly discharged 12 volt battery will sometimes, if you let it sit for a spell, show a tiny bit of recovery, enough to make another start attempt after pulling those relays to give it a fighting chance. The ABS codes complaining about the pump not running can be cleared later, after putting the relays back in.

 

Most smart chargers will give a warning if it deems the battery too far gone? My CTEK 4.3 for example:




I'm kinda lost regarding the "steps" in the above, but get the gist.

 

If the plates of the battery are good, it's just the battery is very discharged because of a drain on it,
a lot of chargers will see it as a damaged battery.
If you put a 1 or 2 amp charger, or a motorcycle charger on it for a few hours, it will bring the charge
toward the 12 volts so the regular charger will continue to put a full charge on it, and faster.

 

i don't see where the beatit b10 qdsp is a smart charger, did you buy another unit?

that does look like a nice jump pack though. it says there's a voltage reader included?

if it is charged and operating properly, try disconnecting the battery from the circuit and see what happens.

 

if you only drive your car once in awhile, you should put a maintainer on the battery to keep this from happening again.
it has nothing to do with the hatch, unless you are leaving it open, or the dome/hatch lights aren't shutting off when you close it