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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Tue, Nov-21-2017, 09:48:25 PM   #21
redline8000
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Default Re: Best battery tender?

Quote:
Originally Posted by Obioban View Post
CTEK makes the best out there. They're also great for battery rejuvenation, if you accidentally discharge it.

You can attach it at the front of the car, the rear of the car (to the battery directly), or to the cigarette lighter. They also include a dongle you can attach to your car permanently wherever you want, if it's frequently stored for long periods (or if you have a tiny battery). I've added it to my M3 since it was retired from daily driver status (in fact, the M3 has its own dedicated CTEK charger, as they make one specific to lithium ion batteries).

https://www.amazon.com/CTEK-56-864-A...&keywords=ctek
This is the same one I am going with as well. My car also sits for long periods of time since she is not my daily driver. From what I have seen and heard, it is the best one on the market.
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Old Tue, Nov-21-2017, 10:31:26 PM   #22
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Default Re: Best battery tender?

I have the ctek one. No complaints. Just plug it in to the cigarette lighter and forget about it.
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Old Tue, Nov-21-2017, 10:44:49 PM   #23
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Default Re: Best battery tender?

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Originally Posted by Obioban View Post
CTEK offers a similar thing, but unfortunately it doesn't work with the Lithium charger



or

Nice, I might have to upgrade to the CTEK!
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Old Tue, Nov-21-2017, 11:13:58 PM   #24
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Default Re: Best battery tender?

I use CTEK. My track car is on it right now:


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Old Wed, Nov-22-2017, 02:37:16 PM   #25
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Default Re: Best battery tender?

I have this and it uses a free App with it.
YouTube: DIY_NATION_TH

Sent from my SM-G920T using Tapatalk
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Old Wed, Nov-22-2017, 02:59:50 PM   #26
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Default Re: Best battery tender?



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Old Wed, Nov-22-2017, 03:45:41 PM   #27
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Default Re: Best battery tender?

So if one were to get the Ctek, what accessories would be best to purchase with it?

The comfort connect and Comfort indicator?
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Old Wed, Nov-22-2017, 04:22:28 PM   #28
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Default Re: Best battery tender?

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Originally Posted by Turb02 View Post
So if one were to get the Ctek, what accessories would be best to purchase with it?

The comfort connect and Comfort indicator?
That depends on how you prefer to charge it. I prefer charging under the hood. But it appears some people like charging via the cig lighter. I don't prefer the latter.
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Old Wed, Nov-22-2017, 04:26:37 PM   #29
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Default Re: Best battery tender?

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Originally Posted by lmtfi View Post
That depends on how you prefer to charge it. I prefer charging under the hood. But it appears some people like charging via the cig lighter. I don't prefer the latter.
I would prefer to have it wired under the hood.
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Old Wed, Nov-22-2017, 05:02:30 PM   #30
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Default Re: Best battery tender?

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Originally Posted by Turb02 View Post
I would prefer to have it wired under the hood.

See post #24 above for standard clamps - or you can hardwire the stub connection (photo of that stub earlier in this thread).
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Discussing Best battery tender? in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)