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cvega
Spa-Francorchamps


Joined: 25 Feb 2013
Posts: 279
Location: Cambridge


PostPosted: Mon Oct 21, 2019 8:15 am    Post subject: CTEK not charging ? Reply with quote

Hiya, I have a ctek mxs 5.0 plugged into ciggy lighter in my c2 with the LED indicator.
Odd situation : ctek is sitting at 7, but the led on the indicator flashes red. Shouldn't the charger tell me if it cannot charge the battery ?
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2003 996 C2 (Ohlins R&T suspension, Toyosport/Spyder exhaust)
 
  
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Porschekit
Österreich


Joined: 12 Aug 2014
Posts: 962
Location: North East UK


PostPosted: Mon Oct 21, 2019 10:27 am    Post subject: Reply with quote

I've had a similar situation in the past.
Try turning the bit that you plug into the cigarette lighter socket through 90 degrees so that it makes a better connection with the terminals hidden inside the body of the socket. It worked for me. Mine wasn't connecting, but fiddling around like this made it work.
However it was intermittent, so I now just connect to the battery terminals, it only takes a couple of minutes and the CTEK cable can be easily accommodated when you close the lid, so no interior frunk lights are on while charging.
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cvega
Spa-Francorchamps


Joined: 25 Feb 2013
Posts: 279
Location: Cambridge


PostPosted: Mon Oct 21, 2019 10:33 am    Post subject: Reply with quote

Thanks, I might do that (direct to battery) and see what happens.
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Robertb
Dijon


Joined: 01 Sep 2003
Posts: 7232
Location: South Oxfordshire

2002 Porsche 996 Carrera 4S

PostPosted: Mon Oct 21, 2019 12:50 pm    Post subject: Reply with quote

Just remember to unplug the charger if its plugged in via the frunk.

I managed to reverse my car out of the garage and drive off down the road without disconnecting it Sad
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"911- the guilt-free supercar"

Current: 2003 C4S Coupe, seal/black

Ex: '02 C4S Coupe, '96 993 Targa, '88 Carrera Sport Coupe
 
  
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40Anni996
Silverstone


Joined: 22 Apr 2009
Posts: 127



PostPosted: Mon Oct 21, 2019 12:58 pm    Post subject: Reply with quote

I had a similar situation where I plugged in the CTEK via the ciggy lighter socket and all seemed fine but when I next came to use the car it had lost connection. Switched to battery terminal charging via the frunk and all has been fine since. I put it down to a dodgy lighter socket, as it's also eaten a couple of FM transmitters over the years, but it may well have been as simple as needing to rotate the plug in the socket as Porschekit suggests.
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Billy Bumpsteer
Silverstone


Joined: 12 Aug 2019
Posts: 132



PostPosted: Mon Oct 21, 2019 1:50 pm    Post subject: Reply with quote

When you its at 7, do you mean 7 volts? If so Im pretty sure it wont start to charge until about 9 volts, you need to use a charger to get some life into it
 
  
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GMG
Nürburgring


Joined: 07 Jan 2018
Posts: 439
Location: Devon


PostPosted: Mon Oct 21, 2019 4:26 pm    Post subject: Reply with quote

...my 996 is on the same charger and following several experiences of the ctek when connected for long periods apparently not charging I turn it off and on again about once per week...

Also on my R129 Mercedes I have driven out of the garage about three times with the charger connected ripping the socket of the wall in the process because the battery is in the boot...so get in start up pull away and crunch ! Follow by FFS!
 
  
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cvega
Spa-Francorchamps


Joined: 25 Feb 2013
Posts: 279
Location: Cambridge


PostPosted: Mon Oct 21, 2019 8:00 pm    Post subject: Reply with quote

Billy Bumpsteer wrote:
When you its at 7, do you mean 7 volts? If so Im pretty sure it wont start to charge until about 9 volts, you need to use a charger to get some life into it


No, I meant CTEK was sitting at level 7 out of 8 charging stages.

I've connected straight to battery and it seems to be charging now.
Bloody 12v sockets.
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