Battery charger for MHD and general use?

lordbmw · 09-10-2017, 11:34 PM

Can somebody recommend a battery charger for MHD flashing and for general use.

My requirements:

* Permits full MHD flashes (40mins - 1 hour)
* Can charge a battery that's low
* Can maintain a battery when a car is not driven for a long time
* Will not overcharge a battery
* Works with AGM batteries (which I have)

09-11-2017, 09:08 AM

Firstly, update to the newest version of MHD.

https://smile.amazon.com/gp/product/...?ie=UTF8&psc=1

lordbmw · 09-11-2017, 09:39 AM

Quote:

Originally Posted by FCobra94

Firstly, update to the newest version of MHD.

https://smile.amazon.com/gp/product/...?ie=UTF8&psc=1

Apparently that model does not support AGM batteries.

It might be OK for MHD flashing but for long term use for charging/maintaining, it might damage an AGM battery.

09-11-2017, 09:44 AM

Oops...just saw your AGM requirement, apologies:
https://smile.amazon.com/Schumacher-...5%3A2470955011

Feel free to spend more on the higher end model if you think you'll ever need to jump a car with it...likely well worth the extra cost:
https://smile.amazon.com/Schumacher-...5%3A2470955011

HawkeyeGeoff · 09-11-2017, 10:08 AM

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

All day best charger, it's the charger BMW labels as their own.

lordbmw · 09-11-2017, 10:13 AM

Other people have mentioned this model

CTEK 7002
https://www.amazon.com/dp/B000FRLO9Y...=26EBCF678IP4F

It has 7A output.

lordbmw · 09-11-2017, 10:17 AM

Quote:

Originally Posted by HawkeyeGeoff

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

All day best charger, it's the charger BMW labels as their own.

That one only has a 4.3A output. Might be OK but I read MHD recommends 6A minimum.

Sgop335 · 09-11-2017, 10:28 AM

Yeah, that's a shit ton of money for what equates to a trickle charger.

erttuli · 09-11-2017, 10:57 AM

I have CTEK MXS 5.0 Polar and its worked fine so far, with MHD and the 40+ minute write, and during winter outside when I had to charge my near dead battery. May want to buy extended cables for it to make things easier. Didnt have many options where I live for the same money.

Chris@VargasTurboTech · 09-11-2017, 11:58 AM

The CTEK 7002 also has battery reconditioning capabilities, which I thought was a load of BS until I ran my battery flat by leaving something plugged in over a 3 day weekend. She was dead. How dead? Like can't even unlock the door type of dead. Couple of volts across the terminals. DEAD.

I reconditioned it a couple times with the 7002 I borrowed from a friend and it's been fine since -2 years later.

Handy little bugger. I like it.

Chris

jsborn · 09-11-2017, 12:01 PM

I had a CTEK 7002 and never had a problem with it. Good charger. It brought back a battery I thought was surely never going to hold a charge again.

MysticRob · 09-14-2017, 02:59 PM

I've used this one for years on all my vehicles, and had no trouble doing Stage 1 or 2 at weeks apart. CTEK has a great name, plus this one does the reconditioning.

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

N54Society · 09-14-2017, 06:26 PM

Great topic. Thanks for the information.

lordbmw · 09-14-2017, 07:55 PM

Apparently the CTEK 7002 has a "supply" mode which delivers a constant 7A.
https://smartercharger.com/products/...multi-us-7002/

I think this is the mode to be in when flashing with MHD.

09-10-2017, 11:34 PM	#1
lordbmw Captain 270 Rep 790 Posts Drives: 2010 BMW 335xi Coupe (AT) Join Date: Sep 2016 Location: Alexandria, VA iTrader: (0)	Battery charger for MHD and general use? Can somebody recommend a battery charger for MHD flashing and for general use. My requirements: * Permits full MHD flashes (40mins - 1 hour) * Can charge a battery that's low * Can maintain a battery when a car is not driven for a long time * Will not overcharge a battery * Works with AGM batteries (which I have)
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09-11-2017, 09:08 AM	#2
FCobra94 Guest 0 Rep n/a Posts Drives:	Firstly, update to the newest version of MHD. https://smile.amazon.com/gp/product/...?ie=UTF8&psc=1
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09-11-2017, 09:44 AM	#4
FCobra94 Guest 0 Rep n/a Posts Drives:	Oops...just saw your AGM requirement, apologies: https://smile.amazon.com/Schumacher-...5%3A2470955011 Feel free to spend more on the higher end model if you think you'll ever need to jump a car with it...likely well worth the extra cost: https://smile.amazon.com/Schumacher-...5%3A2470955011
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09-11-2017, 10:08 AM	#5
HawkeyeGeoff Captain 263 Rep 620 Posts Drives: E90 335XI MSport, S2000 Join Date: Dec 2016 Location: Waterford, MI iTrader: (1) Garage List 2011 BMW 335i XDrive [0.00] 2001 Honda S2000 [0.00]	https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 All day best charger, it's the charger BMW labels as their own.
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09-11-2017, 10:13 AM	#6
lordbmw Captain 270 Rep 790 Posts Drives: 2010 BMW 335xi Coupe (AT) Join Date: Sep 2016 Location: Alexandria, VA iTrader: (0)	Other people have mentioned this model CTEK 7002 https://www.amazon.com/dp/B000FRLO9Y...=26EBCF678IP4F It has 7A output.
	Appreciate 1 N54Society448.50 Quote

09-11-2017, 10:28 AM	#8
FCobra94 Guest 0 Rep n/a Posts Drives:	Yeah, that's a shit ton of money for what equates to a trickle charger.
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09-11-2017, 10:57 AM	#9
erttuli Enlisted Member 9 Rep 32 Posts Drives: E92 Montego 335i Join Date: Sep 2017 Location: Fi iTrader: (0)	I have CTEK MXS 5.0 Polar and its worked fine so far, with MHD and the 40+ minute write, and during winter outside when I had to charge my near dead battery. May want to buy extended cables for it to make things easier. Didnt have many options where I live for the same money.
	Appreciate 1 HawkeyeGeoff263.00 Quote

09-11-2017, 11:58 AM	#10
Chris@VargasTurboTech Lieutenant Colonel 1933 Rep 1,532 Posts Drives: All Things TurboCharged Join Date: May 2016 Location: Bay Area iTrader: (0)	The CTEK 7002 also has battery reconditioning capabilities, which I thought was a load of BS until I ran my battery flat by leaving something plugged in over a 3 day weekend. She was dead. How dead? Like can't even unlock the door type of dead. Couple of volts across the terminals. DEAD. I reconditioned it a couple times with the 7002 I borrowed from a friend and it's been fine since -2 years later. Handy little bugger. I like it. Chris
	Appreciate 3 HawkeyeGeoff263.00 N54Society448.50 SGMDream7.50 Quote

09-11-2017, 12:01 PM	#11
jsborn Enlisted Member 15 Rep 31 Posts Drives: E93 335is Join Date: Aug 2017 Location: San Francisco, CA iTrader: (0)	I had a CTEK 7002 and never had a problem with it. Good charger. It brought back a battery I thought was surely never going to hold a charge again.
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09-14-2017, 02:59 PM	#12
MysticRob Captain 573 Rep 870 Posts Drives: 2009 335i E90 Join Date: Jan 2017 Location: Fremont, CA iTrader: (0) Garage List 2009 BMW 335i E90 S ... [10.00]	I've used this one for years on all my vehicles, and had no trouble doing Stage 1 or 2 at weeks apart. CTEK has a great name, plus this one does the reconditioning. https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 __________________ 2008 E61 535xi Sport Wagon / 100k Miles / Deep Sea Blue Metallic / Natural Brown Interior / MHD Stage 1 91 CA-Octane Tune. SOLD - 2009 E90 335i M-Sport Sedan / 143k Miles / Alpine White Exterior / Chestnut Brown Interior / Mishimoto FMIC / xHP Stage 2.
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09-14-2017, 06:26 PM	#13
N54Society Major Private First Class 449 Rep 1,327 Posts Drives: 2010 E90 335i M Sport Join Date: Mar 2014 Location: US, NA, Earth, Milky Way Galaxy iTrader: (2)	Great topic. Thanks for the information. __________________ 2008 E92 335i 6MT: FBO + MMP Silicone Inlets \| Stage 1 LPFP \| 335is clutch + MFactory SMFW \| Custom BuraQ + MHD tune \| 3.5Bar N20 sensor [SOLD] 2010 E90 335i M-Sport AT: 5" Stepped FMIC, Stage 2 LPFP - MHD V7 E60 Tune running 100% E85 - VRSF DPs
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09-14-2017, 07:55 PM	#14
lordbmw Captain 270 Rep 790 Posts Drives: 2010 BMW 335xi Coupe (AT) Join Date: Sep 2016 Location: Alexandria, VA iTrader: (0)	Apparently the CTEK 7002 has a "supply" mode which delivers a constant 7A. https://smartercharger.com/products/...multi-us-7002/ I think this is the mode to be in when flashing with MHD.
	Appreciate 0 Quote