Can anyone recommend a good charger that doesn't require power outlet plugged in?

TerryGTX · 02-27-2018, 10:56 AM

My car is parked at a surface lot and there's no power outlet accessible. But I do have my gf VW beetle parked right next to mine. Can I connect her battery?
Trying to do the OBD unlock and offline flash for my n55 as I got the chance to beta test it. And it is required to have a battery charger. Any rechargeable battery charger for n55 F32?
Thanks in advance

Eldaes · 02-27-2018, 11:01 AM

Quote:

Originally Posted by TerryGTX

My car is parked at a surface lot and there's no power outlet accessible. But I do have my gf VW beetle parked right next to mine. Can I connect her battery?
Trying to do the OBD unlock and offline flash for my n55 as I got the chance to beta test it. And it is required to have a battery charger. Any rechargeable battery charger for n55 F32?
Thanks in advance

You got a chance to beta test? Lucky. Wish I could beta test. Guess that means N55 won't be releasing anytime soon...

But to help your situation, if you walk into a Walmart or Home Depot, they should have a portable charger you could use. It's like using an external battery for your phone, but it hooks up to your battery.

badbread · 02-27-2018, 11:15 AM

I thought I read somewhere of someone "jump starting" their car while flashing, like you said, just jumper cables between two cars, non bmw started and "charging" the BMW battery. I personally wouldn't do it but I don't see why that wouldn't work.

TerryGTX · 02-27-2018, 11:21 AM

Quote:

Originally Posted by badbread

I thought I read somewhere of someone "jump starting" their car while flashing, like you said, just jumper cables between two cars, non bmw started and "charging" the BMW battery. I personally wouldn't do it but I don't see why that wouldn't work.

They emailed me not to use jump starting charger. Let me quote:

Give it a shot please Make sure you have a charger on the car 20-35 amps of current, continuous charge NOT boost or engine start type. Once you register you get the OTS Map and you can flash it. First flash will also do the unlock.

FastF30 · 02-27-2018, 11:30 PM

Quote:

Originally Posted by TerryGTX

They emailed me not to use jump starting charger. Let me quote:

I was curious as I'm in the same situation... no plug around... I don't see why a portable battery wouldn't work... it will only draw what the computer is using... which is nothing compared to cranking it... it's a direct link hook-up with the portable battery... If you connect at the cable hook up then it's just a parallel battery hook up... I run 14s on my RC helicopter (5foot dia carbonfiber blades)(17hp/12lbs) and run batteries all the time and see no reason why this wouldn't work...

Something like this... it's a 10,000mah battery...

https://www.amazon.com/Car-Jump-Star...5%3A2470955011

badbread · 02-27-2018, 11:49 PM

Quote:

Originally Posted by FastF30

I it will only draw what the computer is using... which is nothing compared to cranking it...

I'm pretty sure I read somewhere that the water pump is running the whole time the unlock is going on, maybe MHD Tuning can confirm?

FastF30 · 02-27-2018, 11:53 PM

Quote:

Originally Posted by badbread

I'm pretty sure I read somewhere that the water pump is running the whole time the unlock is going on, maybe MHD Tuning can confirm?

Ohhh... yes need to confirm... but if it's only a 30minute download .... should be okay.... one guy I read flashed without a charger but with a new battery and was okay... wouldn't hurt hooking it up? .... yea need to figure this out ...

bradsm87 · 02-28-2018, 03:46 AM

Running jumper leads to the Beetle and leaving the Beetle running the whole time will do the trick perfectly.

Mike@N54Tuning.com · 02-28-2018, 09:39 AM

Quote:

Originally Posted by TerryGTX

My car is parked at a surface lot and there's no power outlet accessible. But I do have my gf VW beetle parked right next to mine. Can I connect her battery?
Trying to do the OBD unlock and offline flash for my n55 as I got the chance to beta test it. And it is required to have a battery charger. Any rechargeable battery charger for n55 F32?
Thanks in advance

Make sure you follow the instruction on charging.. You don't want it to fail during the flash..

Mike

larcoc · 02-28-2018, 10:00 AM

I used MHD and the first flash took around 20 mins. I did not do anything for keeping the battery charged. I turned off all lights and the A/C. everything went smooothhh. now flashes take like 5 minutes or less. I think its just a disclaimer so they dont get blamed for a drained battery

FSociety · 02-28-2018, 04:49 PM

TerryGTX are you referring to BM3 or MHD since they both use different methods and unlocking time

TerryGTX · 02-28-2018, 05:09 PM

Quote:

Originally Posted by FSociety

TerryGTX are you referring to BM3 or MHD since they both use different methods and unlocking time

BM3 n55 obd unlock first flash

FSociety · 02-28-2018, 10:13 PM

Quote:

Originally Posted by TerryGTX

BM3 n55 obd unlock first flash

Then every comment here in regards to MHD doesn't matter for you

You should of added "BM3" in your subject line.

Btw dont worry your Unlock process won't take 20+ mins

PabloK · 03-06-2018, 04:34 AM

https://www.amazon.com/dp/B071D2N7TS..._t3_B076DXWPHS

many options on amazon, they work great

02-27-2018, 10:56 AM	#1
TerryGTX Private First Class 46 Rep 160 Posts Drives: 2014 Bmw 435xi M-sport Join Date: Sep 2017 Location: Boston, MA USA iTrader: (0)	Can anyone recommend a good charger that doesn't require power outlet plugged in? My car is parked at a surface lot and there's no power outlet accessible. But I do have my gf VW beetle parked right next to mine. Can I connect her battery? Trying to do the OBD unlock and offline flash for my n55 as I got the chance to beta test it. And it is required to have a battery charger. Any rechargeable battery charger for n55 F32? Thanks in advance
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02-27-2018, 11:15 AM	#3
badbread not good, but bad 333 Rep 361 Posts Drives: 2013 335i Join Date: Jun 2016 Location: Bay Area, CA iTrader: (3)	I thought I read somewhere of someone "jump starting" their car while flashing, like you said, just jumper cables between two cars, non bmw started and "charging" the BMW battery. I personally wouldn't do it but I don't see why that wouldn't work. __________________ They are spelled BRAKES not breaks!!!! Oh FFS, not another spark plug thread! BreadsBMW on Youtube
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02-28-2018, 03:46 AM	#8
bradsm87 Lieutenant Colonel 595 Rep 1,693 Posts Drives: F25 LCI xDrive30d Join Date: Jun 2013 Location: Australia iTrader: (0)	Running jumper leads to the Beetle and leaving the Beetle running the whole time will do the trick perfectly.
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02-28-2018, 10:00 AM	#10
larcoc New Member 6 Rep 17 Posts Drives: 2015 335i Xdrive Join Date: Feb 2018 Location: Tampa, FL iTrader: (0)	I used MHD and the first flash took around 20 mins. I did not do anything for keeping the battery charged. I turned off all lights and the A/C. everything went smooothhh. now flashes take like 5 minutes or less. I think its just a disclaimer so they dont get blamed for a drained battery
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02-28-2018, 04:49 PM	#11
FSociety IG @bmwF9xG80 3813 Rep 7,593 Posts Drives: G80 M3, X4M, G07 X7m50 Join Date: Apr 2012 Location: NYC to NJ to Orlando FL iTrader: (3) Garage List 2023 BMW G80 M3 [0.00] 2020 BMW X4MC [0.00] 16' BMW X4 M40i [10.00] 06 Cadillac STS [0.00]	TerryGTX are you referring to BM3 or MHD since they both use different methods and unlocking time __________________ 60-130mph 6.5s X4M #HCP 60-130mph 5.0s G80 M3 #OrlandoAutowerks Sauce IG: @bmwF9XG80
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03-06-2018, 04:34 AM	#14
PabloK Lieutenant Colonel 597 Rep 1,805 Posts Drives: F30 Join Date: May 2013 Location: Orono iTrader: (1)	https://www.amazon.com/dp/B071D2N7TS..._t3_B076DXWPHS many options on amazon, they work great __________________ 2014 F30 335i / 2014 F31 328d / 2014 F22 m235i 2019 G05 5.0 / 2012 E70 X5 50i / 2007 X5 3.0is 2011 e93 M3 / 2009 E60 M5 / 2004 E46 M3 2017 Alpina B6 22 Ram Trx / 22 M5 CS
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