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AndyS
Barcelona


Joined: 25 Mar 2010
Posts: 1320
Location: The fast lane


PostPosted: Mon Aug 21, 2017 3:45 pm    Post subject: C-Tek Reply with quote

Hi All,
I'm going to the states for a month or so soon - so want to look after the battery while I'm gone. I was about to buy a C-Tek.....
Is the CTEK MXS5.0 Battery Charger suitable?
Are they OK to just connect directly to the battery? I'm sure I've read about some of you guys plugging in to the fag lighter.....

I've never needed to use one of these things before (I usually just come home to a flat battery after anything more than 2 or 3 weeks), so any help would be appreciated Thumb

Cheers
Andy
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Andy
1996 Polar Silver 993 Coupe - AKA 'the money pit'
A Class AMG & Golf TDi for the daily

 
  
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Tobesetc
Suzuka


Joined: 02 Jun 2014
Posts: 1222
Location: West London, UK


PostPosted: Mon Aug 21, 2017 4:09 pm    Post subject: Reply with quote

I use it (I'm sure that's the model). You can get it with a connector that permanently attaches to the battery and sticks out from under the carpet, then just plug it in when you park up. The bonnet will easily close on the wire with no issue at all.
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993 C4, Coupe '94 manual
Previous - '03 986 Boxster S
 
  
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Tobesetc
Suzuka


Joined: 02 Jun 2014
Posts: 1222
Location: West London, UK


PostPosted: Mon Aug 21, 2017 4:11 pm    Post subject: Reply with quote

...oh, and when you discover that the holes in the connector are too small for your battery just use tin-snips to cut the O so it becomes a C and you'll find a bit of brute force and ignorance will sort the problem!
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Previous - '03 986 Boxster S
 



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911TEL
Österreich


Joined: 29 Oct 2007
Posts: 898
Location: Inverness and Highlands

2011 Porsche 997 Turbo S

PostPosted: Mon Aug 21, 2017 4:26 pm    Post subject: Re: C-Tek Reply with quote

AndyS wrote:
Hi All,
I'm going to the states for a month or so soon - so want to look after the battery while I'm gone. I was about to buy a C-Tek.....
Is the CTEK MXS5.0 Battery Charger suitable?
Are they OK to just connect directly to the battery? I'm sure I've read about some of you guys plugging in to the fag lighter.....

I've never needed to use one of these things before (I usually just come home to a flat battery after anything more than 2 or 3 weeks), so any help would be appreciated Thumb

Cheers
Andy


I use the same C-tek charger and plug directly to the cigarette lighter socket ... it's permanently 'live' so connected directly to the battery when ignition is off , so it's ideal connection point.
The cable can go through the door , close door gently then give a wee tug on the cable to ensure it's free not nipped . The seals are pretty soft so do not clamp the cable.
Switch on charger to car/ normal mode and Bob's your uncle!!

No flat battery again!
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Cayman GT4 Carmine red .. at last it gets the goodies it should have....
997 Gen 2 Turbo S Basalt Black -BBS CHR, Kline inconel exhaust, Polished Bliss air freshener...
Cayenne S diesel 850 N/ m torque!!!! Jet black
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MisterCorn
Zolder


Joined: 08 Jan 2011
Posts: 5251
Location: Nottingham, England

2004 Porsche 996 Turbo

PostPosted: Mon Aug 21, 2017 4:46 pm    Post subject: Reply with quote

I would put an inline fuse on the + lead close to the battery myself.

MC
 
  
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thesmithsUK
Silverstone


Joined: 07 Dec 2014
Posts: 114
Location: Cornwall


PostPosted: Mon Aug 21, 2017 6:23 pm    Post subject: Reply with quote

That's the model I use. Straight from the cigarette lighter for my 996 C4S, but direct from the battery terminals for the 964 C4 (as the cigarette lighter isn't permanently live).
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1990 964 C4 Cab | Manual | Brilliant Red Metallic
2004 996 C4S | Manual | Seal Grey
Ex 1991 TVR 450 SEAC | Manual | Cureton Green
 
  
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Tobesetc
Suzuka


Joined: 02 Jun 2014
Posts: 1222
Location: West London, UK


PostPosted: Mon Aug 21, 2017 6:57 pm    Post subject: Reply with quote

My lighter wasn't permanently live either.
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AndyS
Barcelona


Joined: 25 Mar 2010
Posts: 1320
Location: The fast lane


PostPosted: Mon Aug 21, 2017 7:09 pm    Post subject: Reply with quote

MisterCorn wrote:
I would put an inline fuse on the + lead close to the battery myself.

MC


Good call - safety first Thumb
Sounds like the CTEK MXS 5.0 should do the trick though.....
Thanks everyone.
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Andy
1996 Polar Silver 993 Coupe - AKA 'the money pit'
A Class AMG & Golf TDi for the daily

 
  
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911TEL
Österreich


Joined: 29 Oct 2007
Posts: 898
Location: Inverness and Highlands

2011 Porsche 997 Turbo S

PostPosted: Mon Aug 21, 2017 10:14 pm    Post subject: Reply with quote

thesmithsUK wrote:
That's the model I use. Straight from the cigarette lighter for my 996 C4S, but direct from the battery terminals for the 964 C4 (as the cigarette lighter isn't permanently live).


Hmm, I stand corrected on the ' permanently live ' statement on the older cars then , i ( wrongly ) assumed that it was similar to the later cars ....!

Just goes to show that Every day is a schoolday !

Thumb
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Cayman GT4 Carmine red .. at last it gets the goodies it should have....
997 Gen 2 Turbo S Basalt Black -BBS CHR, Kline inconel exhaust, Polished Bliss air freshener...
Cayenne S diesel 850 N/ m torque!!!! Jet black
SL 55 AMG Obsidian Black
Brompton S2L Black edition
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wozy
Imola


Joined: 06 Feb 2013
Posts: 776
Location: Worcestershire


PostPosted: Mon Aug 21, 2017 10:49 pm    Post subject: Reply with quote

No probs here, I've used it straight from the battery for the last five years. You do need to cut through the positive and negatives to be able to get them to fit on the battery terminals, but seriously it's so easy to do. Then just plug the plastic bit into the charger cable, shut the bonnet and hey ho, not a flat battery...... mine at times has been connected for 6 months and caused absolutely no hassles Thumb
_________________
Porsche Cars of Great Britain launched the 993 in the UK in early December 1993 registering 12 x UK cars on the 6th & 7th of that month; mine is one of them.

993 C2. MBM. C4 mounts, RSRs, RS Short shifter. RS steering wheel. FSDs & M033s
Previous 2.7S, 3.2, 964 and 968CS
 
  
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gunner
Montreal


Joined: 04 Jul 2014
Posts: 583
Location: Kent


PostPosted: Tue Aug 22, 2017 8:52 am    Post subject: Reply with quote

CTEK sell a connector with larger holes if you want to avoid cutting.
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LondonRob
Spa-Francorchamps


Joined: 11 Mar 2013
Posts: 311
Location: West London


PostPosted: Tue Aug 22, 2017 10:26 am    Post subject: Reply with quote

I don't have access to my car at the moment but I don't remember cutting the standard connectors - I think they fitted the bolts that loosens/tighten the terminal on to the battery lug so used them as an additional washer there?
 
  
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jhrfc
Newbie


Joined: 26 Apr 2016
Posts: 40


1994 Porsche 993 Carrera 2

PostPosted: Tue Aug 22, 2017 1:20 pm    Post subject: Reply with quote

I've got a c-tek xs3.3 charger.
I drilled out the eyelets, to fit the socket flying lead to the battery, and as said here, it is easy to close the bonnet.
TBH a good quality charger like the ctek will not need an inline fuse as it has a lot of built in intelligence including a current limiter. spark inhibitor etc.

BTW The cigarette lighter needs a wiring mod to make it permanently live (which BTW is not possible on Tiptronics for some reason). a search on here or elsewhere will find out the detials.
J

Last edited by jhrfc on Wed Aug 23, 2017 3:42 pm; edited 1 time in total
 
  
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Tobesetc
Suzuka


Joined: 02 Jun 2014
Posts: 1222
Location: West London, UK


PostPosted: Tue Aug 22, 2017 3:56 pm    Post subject: Reply with quote

Here's CTEKs answer to the fuse question:

The CTEK charger is legally certified as an electrically double insulated product.
This means that it has as it says twice as rigid insulation as for a product that need to be connected to protective ground.
Compare for example to a mobile phone charger or an electric shaver.

If anything goes wrong in general you are protected by the Residual Current Device (RCD) and fuses in the power installation in your house.
So, the CTEK chargers are very reliable and safe to use, but for extra protection, if you so wish, there is nothing that hinders you to fit on a fuse. If you do, put it next to the + pole.

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Previous - '03 986 Boxster S
 
  
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Andyc11
Monza


Joined: 22 Apr 2013
Posts: 223
Location: Manchester


PostPosted: Tue Aug 22, 2017 4:22 pm    Post subject: Reply with quote

I've just got my OPC to put the connectors directly onto the new battery they've recently fitted to my GTS - I don't have the cigarette adapter though. Plan was to use the mains whilst parked up in the garage, would I be better buying the cigarette adapter and using that?
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jhrfc
Newbie


Joined: 26 Apr 2016
Posts: 40


1994 Porsche 993 Carrera 2

PostPosted: Tue Aug 22, 2017 4:32 pm    Post subject: Reply with quote

Andyc11 wrote:
I've just got my OPC to put the connectors directly onto the new battery they've recently fitted to my GTS - I don't have the cigarette adapter though. Plan was to use the mains whilst parked up in the garage, would I be better buying the cigarette adapter and using that?


IMO use the direct battery connection.
easier to keep the frunk shut, rather then trial through the window
 
  
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MisterCorn
Zolder


Joined: 08 Jan 2011
Posts: 5251
Location: Nottingham, England

2004 Porsche 996 Turbo

PostPosted: Tue Aug 22, 2017 4:32 pm    Post subject: Reply with quote

Tobesetc wrote:
Here's CTEKs answer to the fuse question:

The CTEK charger is legally certified as an electrically double insulated product.
This means that it has as it says twice as rigid insulation as for a product that need to be connected to protective ground.
Compare for example to a mobile phone charger or an electric shaver.

If anything goes wrong in general you are protected by the Residual Current Device (RCD) and fuses in the power installation in your house.
So, the CTEK chargers are very reliable and safe to use, but for extra protection, if you so wish, there is nothing that hinders you to fit on a fuse. If you do, put it next to the + pole.


What a load of crap. The fuse is nothing to do with the mains side. It is everything to do with having a cable connected directly to a battery which is capable of supplying many hundreds of amps. If you trap that cable and short circuit it internally or short the + side to the chassis then it will get awful interesting until something stops conducting. If you go through the cigarette lighter then it is fused in the car. I would never connect anything directly to a car battery without a fuse if it was permanently fixed in the car, nevermind if it was on loose wires which can more easily be trapped/damaged.

MC
 
  
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AndyS
Barcelona


Joined: 25 Mar 2010
Posts: 1320
Location: The fast lane


PostPosted: Tue Aug 22, 2017 8:31 pm    Post subject: Reply with quote

So just so I am clear - I connect one of these to the battery (with the in-line fuse):



.....and just leave it 'till I need it.

Then when I go away, connect the C-Tec to the adapter and plug it in to the mains?



Sorry to sound dumb, but I've always thought that you needed to disconnect a battery before using a charger or it can play merry hell with the alternator?
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Andy
1996 Polar Silver 993 Coupe - AKA 'the money pit'
A Class AMG & Golf TDi for the daily

 
  
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MisterCorn
Zolder


Joined: 08 Jan 2011
Posts: 5251
Location: Nottingham, England

2004 Porsche 996 Turbo

PostPosted: Tue Aug 22, 2017 9:24 pm    Post subject: Reply with quote

That is it. Check it every now and to make sure it hasn't broken but otherwise all is good.

MC
 
  
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gunner
Montreal


Joined: 04 Jul 2014
Posts: 583
Location: Kent


PostPosted: Tue Aug 22, 2017 10:12 pm    Post subject: Reply with quote

I use mine for powering the DAB when it's not on charge.
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