Used the wrong charger to charge the battery

wdskukm3 · 01-11-2018, 10:04 AM

I might have trickle charged my F80 M3 battery with the wrong charger. It's a Battery Tender charger by Deltran with 1 amp charging power. But I believe it's only for AGM. I bought it specifically for my motorcycle when I used to have it. Didn't know the M3 used a lithium Ion battery so it was plugged in for about a week and a half now. The battery does show fully charged. But did I ruin the battery using the wrong charger. Or am I out 1300 needing a new battery.

GERM4N · 01-11-2018, 10:20 AM

If the battery shows fully charged, then you’re probably fine. Now you know to now buy the proper charger.

wdskukm3 · 01-11-2018, 10:59 AM

I hope so. It's almost 2 weeks since it was hooked up. I hope the 1 amp charger didn't degrade the battery life.

Fast4d · 01-11-2018, 01:52 PM

I use my deltran tender on my lith iron moto batteries all the time. no issues.

bmrwrld · 01-11-2018, 03:06 PM

I use a BMW OEM tender 12V 1.25 Amp, No issues for the past 3 years.

WingZeroX5 · 01-11-2018, 03:35 PM

I use NOCO chargers that has the lithium setting

Deddie · 01-11-2018, 07:48 PM

I have used my Deltran on the M3 for over 2 years - battery is fine.

wdskukm3 · 01-11-2018, 10:12 PM

Are all your Deltran charger made for lithium or amg. I checked the voltage on the lithium battery in the M3 and it's fully charged after I removed the Batery tender plus charger. Mmm I'm guessing it's ok. I still bought the Ctek charger to be safe.

stormlv · 01-12-2018, 03:01 AM

IIRC, the problem with chargers which do not have a lithium battery setting, is not that it doesn't charge it to full, but that it over charges it - which causes the damage.

HPIA4v2 · 02-24-2018, 09:39 PM

no worry, as long your charger is not more than 14.6V
LiFePO4 each cell max charging voltage is 3.6V, there are 4 cells in series in BMW M cars

wdskukm3 · 02-24-2018, 10:05 PM

That's good to know. It was a 1.2 amp motorcycle trickle charger.

01-11-2018, 10:04 AM	#1
wdskukm3 Captain 364 Rep 834 Posts Drives: 2015 F80 M3 and Model P3D Join Date: Oct 2017 Location: Orland Park,IL iTrader: (0)	Used the wrong charger to charge the battery - did I ruin it? I might have trickle charged my F80 M3 battery with the wrong charger. It's a Battery Tender charger by Deltran with 1 amp charging power. But I believe it's only for AGM. I bought it specifically for my motorcycle when I used to have it. Didn't know the M3 used a lithium Ion battery so it was plugged in for about a week and a half now. The battery does show fully charged. But did I ruin the battery using the wrong charger. Or am I out 1300 needing a new battery. __________________ M Forever!!!!
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01-11-2018, 10:20 AM	#2
GERM4N New Member 0 Rep 6 Posts Drives: 2015 M4 Join Date: Nov 2017 Location: scottsdale, Az iTrader: (0)	If the battery shows fully charged, then you’re probably fine. Now you know to now buy the proper charger.
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01-11-2018, 10:59 AM	#3
wdskukm3 Captain 364 Rep 834 Posts Drives: 2015 F80 M3 and Model P3D Join Date: Oct 2017 Location: Orland Park,IL iTrader: (0)	I hope so. It's almost 2 weeks since it was hooked up. I hope the 1 amp charger didn't degrade the battery life. __________________ M Forever!!!!
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01-11-2018, 01:52 PM	#4
Fast4d Captain 267 Rep 885 Posts Drives: 325 Join Date: Jan 2012 Location: So cal iTrader: (0)	I use my deltran tender on my lith iron moto batteries all the time. no issues. __________________ SAFE-GUARD tire/wheel/windshield/paint protection is a FRAUD! do not waste your money!
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01-11-2018, 03:06 PM	#5
bmrwrld Lieutenant 158 Rep 490 Posts Drives: BMW Join Date: Dec 2010 Location: So Cal iTrader: (0)	I use a BMW OEM tender 12V 1.25 Amp, No issues for the past 3 years.
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01-11-2018, 03:35 PM	#6
WingZeroX5 Colonel 767 Rep 2,362 Posts Drives: F80 / F30 Join Date: Mar 2010 Location: New Hampshire iTrader: (14)	I use NOCO chargers that has the lithium setting
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01-11-2018, 07:48 PM	#7
Deddie Enlisted Member 31 Rep 33 Posts Drives: 2016 M3 Join Date: Sep 2015 Location: The Woodlands, TX iTrader: (0)	I have used my Deltran on the M3 for over 2 years - battery is fine.
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01-11-2018, 10:12 PM	#8
wdskukm3 Captain 364 Rep 834 Posts Drives: 2015 F80 M3 and Model P3D Join Date: Oct 2017 Location: Orland Park,IL iTrader: (0)	Are all your Deltran charger made for lithium or amg. I checked the voltage on the lithium battery in the M3 and it's fully charged after I removed the Batery tender plus charger. Mmm I'm guessing it's ok. I still bought the Ctek charger to be safe. __________________ M Forever!!!!
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01-12-2018, 03:01 AM	#9
stormlv Human 932 Rep 1,201 Posts Drives: Yes Join Date: Nov 2013 Location: Geneva iTrader: (1)	IIRC, the problem with chargers which do not have a lithium battery setting, is not that it doesn't charge it to full, but that it over charges it - which causes the damage. __________________ 2023 BMW M4 CP xDr \| 510HP / 650Nm \| Isle of Man Green \| Photo album Sold 2018 BMW M4 DCT / ZCP\| 450HP / 550Nm \| Sakhir Orange \| Photo album \| Tribute Sold 2014 BMW 435xd \| 360HP / 710Nm \| Estoril Blue \| Photo album 2010 BMW Z4 sDrive35i DKG \| 306 HP / 400Nm \| Space Gray \| Photo album
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02-24-2018, 09:39 PM	#10
HPIA4v2 Major 254 Rep 1,391 Posts Drives: F80, F86 Join Date: May 2007 Location: Washington iTrader: (3)	no worry, as long your charger is not more than 14.6V LiFePO4 each cell max charging voltage is 3.6V, there are 4 cells in series in BMW M cars
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02-24-2018, 10:05 PM	#11
wdskukm3 Captain 364 Rep 834 Posts Drives: 2015 F80 M3 and Model P3D Join Date: Oct 2017 Location: Orland Park,IL iTrader: (0)	That's good to know. It was a 1.2 amp motorcycle trickle charger. __________________ M Forever!!!!
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