CTEK Battery Charging

Poppyboy · 08-09-2014, 09:19 AM

There are times I don't drive for almost a week, so I hook my '11 3.5i 47k miles up to a CTEK charger. After 24 hours, the indicator still doesn't show "fully charged". Shouldn't my battery be fully-charged after that long? It's about three years old. Are there other CTEK users? what has been your experience?

Draper · 08-09-2014, 10:01 AM

Which CTEK do you have? Which step is it getting stuck on?

My battery is about 5 mos old, and the last time I used my CTEK it took about 10 hours for step 3 (bulk charge) then was on step 4 (trickle charge) for about 6 hours before I had to pull it off.

AFAIK, as long as you get to step 4 your battery is at least 80% full and can be used normally.

gmaurer · 08-09-2014, 12:59 PM

I had a 2010 X5M, and now a 2013 X5M.
On each, my multi-step charger generally takes all night to get to the green.
When I put it on my 9 year-old 4Runner with the original battery, it takes a couple hours at most to reach full charge.
Go figure!

Poppyboy · 08-09-2014, 02:49 PM

It's the model with two LED statuses: Half (partially) charged-orange and Fully charged-green. It stayed on the partially charged LED.

Poppyboy · 08-09-2014, 02:50 PM

I believe its the 3300.

08-09-2014, 09:19 AM	#1
Poppyboy Captain 194 Rep 828 Posts Drives: 2011 X5 3.5i w/ SA Package Join Date: Jul 2014 Location: Lincolnshire, IL iTrader: (0) Garage List 1976 Triumph TR6 [10.00] 1993 Bentley Turbo R [10.00] 2011 X5 [10.00]	CTEK Battery Charging There are times I don't drive for almost a week, so I hook my '11 3.5i 47k miles up to a CTEK charger. After 24 hours, the indicator still doesn't show "fully charged". Shouldn't my battery be fully-charged after that long? It's about three years old. Are there other CTEK users? what has been your experience?
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08-09-2014, 10:01 AM	#2
Draper Brigadier General 3460 Rep 3,995 Posts Drives: M4 Comp / Macan Turbo Join Date: Jan 2011 Location: Denver iTrader: (38)	Which CTEK do you have? Which step is it getting stuck on? My battery is about 5 mos old, and the last time I used my CTEK it took about 10 hours for step 3 (bulk charge) then was on step 4 (trickle charge) for about 6 hours before I had to pull it off. AFAIK, as long as you get to step 4 your battery is at least 80% full and can be used normally. __________________ Current: G82 M4 Comp xDrive // Frozen Deep Grey Current: 95B.1 Macan Turbo // Dark Blue Metallic
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08-09-2014, 12:59 PM	#3
gmaurer New Member 2 Rep 20 Posts Drives: 2016 X5M Join Date: Dec 2012 Location: Rhode Island iTrader: (0)	Battery Charging I had a 2010 X5M, and now a 2013 X5M. On each, my multi-step charger generally takes all night to get to the green. When I put it on my 9 year-old 4Runner with the original battery, it takes a couple hours at most to reach full charge. Go figure!
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08-09-2014, 02:49 PM	#4
Poppyboy Captain 194 Rep 828 Posts Drives: 2011 X5 3.5i w/ SA Package Join Date: Jul 2014 Location: Lincolnshire, IL iTrader: (0) Garage List 1976 Triumph TR6 [10.00] 1993 Bentley Turbo R [10.00] 2011 X5 [10.00]	It's the model with two LED statuses: Half (partially) charged-orange and Fully charged-green. It stayed on the partially charged LED.
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08-09-2014, 02:50 PM	#5
Poppyboy Captain 194 Rep 828 Posts Drives: 2011 X5 3.5i w/ SA Package Join Date: Jul 2014 Location: Lincolnshire, IL iTrader: (0) Garage List 1976 Triumph TR6 [10.00] 1993 Bentley Turbo R [10.00] 2011 X5 [10.00]	I believe its the 3300.
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