Battery draining
If you think a good mechanic is expensive, try hiring a bad one
Joined: Dec 2011
Posts: 32,017
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From: Midwest. Aiming about mid-chest
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If you think a good mechanic is expensive, try hiring a bad one
Joined: Dec 2011
Posts: 32,017
Likes: 256
From: Midwest. Aiming about mid-chest
Rep Power: 517 










Re: Battery draining
11.7 is pretty much normal for a battery sitting in freezing cold temps
Hondas GR-8 (LOL) tester: charging station/charging system tester/battery tester

This thing will reject most batteries that are only run dead as having a bad cell. Gotta charge on a REAL charger for a while before this damn thing won't reject the battery.
And the (LOL) ED-18 tester:

All are Midtronics units commonly used by many other stores and car manufacturers. Honda (and others) will ONLY accept tests numbers from these machines for warranty purposes.
But they are not foolproof.
These testers can't (and don't) find all possible faults.
"Able to test up to 90% of all battery failures" will never be 100% no matter which marketing genius made that sales pitch, and no matter who heard that pitch.
There are ways around false good or bad tests.
Sometimes there is no substitute for a real VAT tester with a carbon-pile load. Same for several other battery specific tests that used to be perfectly acceptable.
The testers above all give a nice, official looking printout for the consumer that knows nothing about their car.
"The machine says it is bad so you must buy one. Here's the printout, see for yourself."
Printouts are great. Printouts cannot lie or be falsified. Right?
Silly Rabbit, machines don't fix the cars.
/rant?
OP: Got any answers yet?
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