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      01-04-2012, 06:59 PM   #1
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Is battery charger a MUST with the ESS tune flash

I know its recommended but just wondering if I can get away with it w/o running to advance auto parts to pickup a battery charger...

Someone said the initial reading took 1hr so wondering if our battery is capable to withstand that amount of time.
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      01-04-2012, 07:05 PM   #2
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I would definitely get one for the initial reading
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      01-04-2012, 07:19 PM   #3
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My initial reading was over 2 hours. And flashing the car took almost an hour. I wouldn't risk it.
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      01-04-2012, 07:34 PM   #4
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Quote:
Originally Posted by SehrSchnell View Post
Don't be lazy and pick one up. There is a good chance you'll regret it otherwise.
Exactly!
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      01-04-2012, 07:52 PM   #5
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Lol alright alright I will get a battery charger just to be on the safe side
Would a plain jane battery charger under $60 be sufficient?
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      01-04-2012, 07:56 PM   #6
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Quote:
Originally Posted by MDIAU View Post
Lol alright alright I will get a battery charger just to be on the safe side
Would a plain jane battery charger under $60 be sufficient?
Is that a serious question?
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      01-04-2012, 07:57 PM   #7
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Quote:
Originally Posted by radiantm3 View Post
My initial reading was over 2 hours. And flashing the car took almost an hour. I wouldn't risk it.
I just reflashed mine after installed the blower. reading took 15 minutes, writing took 6 minutes.
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      01-04-2012, 08:01 PM   #8
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Just googled some $40-70 range also some topping couple hundred geez!
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Originally Posted by THE TECH View Post
Quote:
Originally Posted by MDIAU View Post
Lol alright alright I will get a battery charger just to be on the safe side
Would a plain jane battery charger under $60 be sufficient?
Is that a serious question?
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      01-04-2012, 08:05 PM   #9
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Quote:
Originally Posted by MDIAU View Post
Just googled some $40-70 range also some topping couple hundred geez!
Your call. Some things there's just no need to cheap out on. I didn't say you had to spend a ton of money, but "plain jane" just doesn't cut it imo. A quality charger will serve you well for many years.
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      01-04-2012, 09:40 PM   #10
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I'd spend a little more that the bottom of the barrel (so to speak). As mentioned, you will use it more often than you think. Any sort of holiday we take more than a week, I use the trickle component of it on the M.
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      01-04-2012, 09:56 PM   #11
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Quote:
Originally Posted by 4sevens.com View Post
I just reflashed mine after installed the blower. reading took 15 minutes, writing took 6 minutes.
Must not have been a full read? Definitely takes longer than 15 minutes.
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      01-04-2012, 09:58 PM   #12
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Quote:
Originally Posted by radiantm3 View Post
Must not have been a full read? Definitely takes longer than 15 minutes.
It was a full read/write - not just data.

The file was 5mb
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      01-04-2012, 09:59 PM   #13
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Are there any charger options for people who keep their cars in parking garages with no outlets around? Would those battery boosters work? My initial read has taken around an hour and a half
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      01-04-2012, 10:02 PM   #14
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Quote:
Originally Posted by kyleb350 View Post
Are there any charger options for people who keep their cars in parking garages with no outlets around? Would those battery boosters work? My initial read has taken around an hour and a half
Not that I have heard of unless you park at the top of the garage in the sun where you can utilize a solar one. Battery booster is not for charging a battery.
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      01-04-2012, 10:06 PM   #15
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Quote:
Originally Posted by 4sevens.com View Post
It was a full read/write - not just data.

The file was 5mb
Do you have iDrive/EDC/etc? Kind of curious why the read times are so different.
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      01-05-2012, 12:10 AM   #16
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It is best to always use one when reading and writing data to your ECU. You do not need to spend a lot on one but a good charger is always a nice item to have in general.
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      01-05-2012, 08:42 AM   #17
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You guys are acting like a bunch of little girls. A run of the mill trickle charger is fine.
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      01-05-2012, 08:48 AM   #18
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Quote:
Originally Posted by SehrSchnell View Post
I don't give a shit what charger he is using, I'm just amazed how f@cking cheap he is.
Just because you have money, doesn't mean you have to go around wasting it.
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      01-05-2012, 08:54 AM   #19
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Quote:
Originally Posted by SehrSchnell View Post
Are we really having this discussing over a charger that cost $60 or $200?
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      01-05-2012, 08:59 AM   #20
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Quote:
Originally Posted by kyleb350 View Post
Are there any charger options for people who keep their cars in parking garages with no outlets around? Would those battery boosters work? My initial read has taken around an hour and a half
You can use jumper cables, just have the other car running the whole time you read/flash your car. I was so excited to flash my car that I could not wait to get home I did the whole thing in the parking lot at work....

When I'm home I just use a regular battery charger.. Nothing fancy
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      01-05-2012, 09:18 AM   #21
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Do you need a tender or a charger?
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Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."
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      01-05-2012, 09:20 AM   #22
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Quote:
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Do you need a tender or a charger?
Charger
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