CTEK Battery Charger

MTG_Snake · 05-31-2019, 06:51 PM

Hey guys,

So I just bought a CTEK charger and hooked it up to my battery. It’s been about 30 min and it stuck on stage 2! I read the manual and it says it might take 8 hrs! Is that normal? I drove the car yesterday! And the charger is getting really hot!

MTG_Snake · 05-31-2019, 07:04 PM

Nevermind it just went to Stage 3! But regarding the heat, is that normal?

mfurse · 05-31-2019, 08:01 PM

Quote:

Originally Posted by MTG_Snake

Hey guys,

So I just bought a CTEK charger and hooked it up to my battery. It's been about 30 min and it stuck on stage 2! I read the manual and it says it might take 8 hrs! Is that normal? I drove the car yesterday! And the charger is getting really hot!

Did you get the Ctek suitable for a Lithium battery? The M3 has an expensive lithium battery which needs a special kind of charger.

Also - just checking, are you trickle charging from the terminals under the bonnet not directly on the battery?

maniz · 06-01-2019, 01:36 AM

It is a trickle charger, so it does take a while to charge our large batteries. Mine has never been what I would consider very hot while charging, but a little warmth is ok. As long as you bought the right charger, have it set on the LiFePO4 car batt mode, you should be fine.

MTG_Snake · 06-01-2019, 03:13 PM

Yes I bought the right one. It’s good now, went to stage 7 last night. Thank you all.

05-31-2019, 06:51 PM	#1
MTG_Snake Private 8 Rep 60 Posts Drives: 2016 M4 Convertible Join Date: Jul 2018 Location: San Antonio, TX iTrader: (0)	CTEK Battery Charger Hey guys, So I just bought a CTEK charger and hooked it up to my battery. It’s been about 30 min and it stuck on stage 2! I read the manual and it says it might take 8 hrs! Is that normal? I drove the car yesterday! And the charger is getting really hot!
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05-31-2019, 07:04 PM	#2
MTG_Snake Private 8 Rep 60 Posts Drives: 2016 M4 Convertible Join Date: Jul 2018 Location: San Antonio, TX iTrader: (0)	Nevermind it just went to Stage 3! But regarding the heat, is that normal?
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06-01-2019, 01:36 AM	#4
maniz Assistant TO the Regional Manager 617 Rep 728 Posts Drives: 2018 M4 Coupe Join Date: Mar 2014 Location: Denver iTrader: (0)	It is a trickle charger, so it does take a while to charge our large batteries. Mine has never been what I would consider very hot while charging, but a little warmth is ok. As long as you bought the right charger, have it set on the LiFePO4 car batt mode, you should be fine. __________________ 2018 M4 Coupe. 6MT. Der stärkste buchstabe der welt
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06-01-2019, 03:13 PM	#5
MTG_Snake Private 8 Rep 60 Posts Drives: 2016 M4 Convertible Join Date: Jul 2018 Location: San Antonio, TX iTrader: (0)	Yes I bought the right one. It’s good now, went to stage 7 last night. Thank you all.
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