Need to battery backup while programming any advice?

lovnblack · 11-25-2014, 01:30 AM

Hi, we will make some programming to my car in next days and it will take at least 2-3 hours. While we programming, I dont want to risk my battery (cause its not in good condition) and I want to support my car with 14,4V (I think I need this voltage huh?) power supply or battery charger. A few months ago I seen a device in another service. The device's input voltage was 220V and output was 14,4V. It was give the 14,4V flat/constant power to the car continiously while they were busy with programming. I searched and found Bosch C7 smart battery charger but a few seller said it will not support 14,4V to my car, battery charging and kind of this backup is different things. So, Im searching by "battery charger" keyword but I really not sure what I need, any advice?

Miller335 · 11-25-2014, 09:50 AM

Just buy a charger that let's you choose between different charging rates.
I use the diehard platinum charger and so far so good.

I think you may be over thinking this unless I missed something in your post.

ctuna · 11-25-2014, 09:53 AM

This has been discussed at
http://www.e90post.com/forums/forumdisplay.php?f=368

They sometimes suggest a power supply rather than a charger.

11-25-2014, 01:30 AM	#1
lovnblack LOADING... 4 Rep 30 Posts Drives: F33 435i Join Date: Feb 2014 Location: PLOVDIV, BULGARIA iTrader: (0)	Need to battery backup while programming any advice? Hi, we will make some programming to my car in next days and it will take at least 2-3 hours. While we programming, I dont want to risk my battery (cause its not in good condition) and I want to support my car with 14,4V (I think I need this voltage huh?) power supply or battery charger. A few months ago I seen a device in another service. The device's input voltage was 220V and output was 14,4V. It was give the 14,4V flat/constant power to the car continiously while they were busy with programming. I searched and found Bosch C7 smart battery charger but a few seller said it will not support 14,4V to my car, battery charging and kind of this backup is different things. So, Im searching by "battery charger" keyword but I really not sure what I need, any advice?
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11-25-2014, 09:50 AM	#2
Miller335 Colonel 291 Rep 2,189 Posts Drives: 2007 E92 Join Date: Oct 2013 Location: Portland, OR iTrader: (0)	Just buy a charger that let's you choose between different charging rates. I use the diehard platinum charger and so far so good. I think you may be over thinking this unless I missed something in your post. __________________ 2007 E92 335 6MT w/335is clutch FBO MHD E60 Wedge map 49k miles
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11-25-2014, 09:53 AM	#3
ctuna Lieutenant General 1911 Rep 13,104 Posts Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca iTrader: (0)	This has been discused at This has been discussed at http://www.e90post.com/forums/forumdisplay.php?f=368 They sometimes suggest a power supply rather than a charger.
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