Battery maintainer
Thread Starter
Burning Brakes
Joined: Feb 2008
Posts: 1,192
Likes: 130
From: Senoia Ga
Battery maintainer
Looking at the CTek model 3300 battery charger/maintainer. They have an adapter that looks like it will work on the trunk plug. It has a decent price.
Anyone have experience with this unit and plug
Thanks
Anyone have experience with this unit and plug
Thanks
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 35,078
Likes: 12,438
From: NE South Carolina
Yep bought one in 2013 for one of the early C7s I got in October 2013 (so have many others.) Half the price of the same one (actually 1 more feature) with the GM Logo! They make them for everybody and you can even get the same one with a Ferrari, Maserati, Porsche etc Logo BUT you'll pay more!
Last edited by JerryU; Jan 22, 2019 at 10:15 AM.
Moderator emeritus
Joined: Jun 2001
Posts: 18,599
Likes: 3,955
From: Jacksonville Florida BWO Dayton, Cincinnati, Bloomsbury NJ, Cincinnati
2015 C7 of the Year Finalist
Gm's is probably a Ctek with GM badging! I have 3 of those C-Teks you are looking at. Both of my cars and 1 generator. They work great.
Elmer
Elmer
Racer
Joined: Nov 2015
Posts: 260
Likes: 87
From: Brighton MI
Correct on the GM unit being a CTEK with GM Logo - Not sure what the actual specs of the GM unit are.
I looked up the CTEK 3300 & it's 3.3 A max. I've had a CTEK MUS 4.3 (4.3 A max) for a number of years that I use on our vehicles - 3 cars, 2 garden tractors, & 1 motorcycle - Works very well on all of them.
I recommend CTEK based on my experience although there are a number of units that will meet your requirements.
JWH
I looked up the CTEK 3300 & it's 3.3 A max. I've had a CTEK MUS 4.3 (4.3 A max) for a number of years that I use on our vehicles - 3 cars, 2 garden tractors, & 1 motorcycle - Works very well on all of them.
I recommend CTEK based on my experience although there are a number of units that will meet your requirements.
JWH
Pro
Joined: Aug 2004
Posts: 679
Likes: 279
From: Charlotte NC
I have used that model on a number of my cars over the past 15 years and they are fine. One word of caution to you and anyone else with the CTeck, use a lightning arrestor strip to power them if you live in an area that has those summer storms. I have lost several over the years to power surges. Some of the other well known brands are not as sensative to this issue.
Melting Slicks
Joined: Sep 2013
Posts: 2,299
Likes: 466
From: Long Island New York
The difference in price between the Ctek 3300 and the Ctek MUS 4.3, which is now the MXS 5.0 is about $10-12. I would opt for the 8 stage 4.3 amp MXS 5.0 over the 3300. In either case you need the cig lighter plug, and if you use a car cover, the 8' extension cable.
I have an older MUS 4.3 and a new MXS 5.0 in my garage - the MUS 4.3 is on the C7 and the MXS 5.0 is used for two of our daily drivers that sits around when the kids are away at college. The seem to be the same exact items and both work really well.
I have an older MUS 4.3 and a new MXS 5.0 in my garage - the MUS 4.3 is on the C7 and the MXS 5.0 is used for two of our daily drivers that sits around when the kids are away at college. The seem to be the same exact items and both work really well.
Last edited by LIStingray; Jan 22, 2019 at 05:55 PM.
Intermediate
Joined: Feb 2011
Posts: 45
Likes: 9
From: Greenville NC
Ctec cord
I have used the ctec 3300 on my C6 and now with a cigarette plug in the trunk. I recommend get CTec extension cord if needed to reach the trunk The specialized slender extension cord on EBay connects directly with the cord and cigarette adapter.
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Pro
Joined: Jul 2008
Posts: 560
Likes: 86
From: Port St Lucie Florida
My car is always plugged into that port using the C Tek 3300. I purchased the extension power cord to run the wire through the drive side window to reach the power port. My C Tek is mounted on the garage wall and I run the wire through the window opening.
Safety Car
Joined: Nov 1999
Posts: 4,294
Likes: 1,166
From: Green and Wet Western Oregon
2023 C7 of the Year Winner - Unmodified
2018 C6 of Year Winner
The battery tender that came with our `19 GS is a CTEK US 3300 with a different faceplate. Says so right in the instruction manual.
Pro
Joined: Feb 2016
Posts: 711
Likes: 200
I would not advise that model. I have had two. Both crapped out. The mode buttons started jumping all over different modes.The mode button itself is very poor. I am sending my second one back fora warranty. On the phone they told me a new model now replaces tge 3300.
Pro
Joined: Sep 2006
Posts: 655
Likes: 114
From: Orange County, Southern California
Works absolutely fine for me, been using it since the car was new, been using it for years, and use it daily. No problems, works exactly as designed.
Pro
Joined: Feb 2016
Posts: 711
Likes: 200
Funny when I told them the problem, they pretty much acknowledged many complaints regarding that specific problem. Maybe thats why it is being replaced. I guess your just lucky or charmed.
Le Mans Master
Joined: Jul 2010
Posts: 5,584
Likes: 406
From: Syracuse New York
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 35,078
Likes: 12,438
From: NE South Carolina
^^^
Sure, there is nothing magic about the C7's electrical system or its "cheap" battery! I replaced it in my early 2014 C7 with an AGM battery with 20% more CCA and the charger worked fine. In fact any quality battery maintainer will work fine.
I have a cheaper Schumacher charger on my Street Rod that have been on essentially all the time for ~10 years. It's only off when It goes to car shows. It allowed the Yellow Top Optima to last ~10 years. Just replaced it as it was living on borrowed time but t was working fine. I almost never use the one for the Vette even when n vacation for 2 1/2 weeks. I don't drive every day but at least several times per week and always about 50+ miles. I live ~20 miles from town. Yep the cheap battery in the Grand Sport won't last that long but not worth the PIA to plug in a charger!
However with the new C8 and it's speculated 48 volt system (as is being used on some European cars) it probably won't.
Sure, there is nothing magic about the C7's electrical system or its "cheap" battery! I replaced it in my early 2014 C7 with an AGM battery with 20% more CCA and the charger worked fine. In fact any quality battery maintainer will work fine.
I have a cheaper Schumacher charger on my Street Rod that have been on essentially all the time for ~10 years. It's only off when It goes to car shows. It allowed the Yellow Top Optima to last ~10 years. Just replaced it as it was living on borrowed time but t was working fine. I almost never use the one for the Vette even when n vacation for 2 1/2 weeks. I don't drive every day but at least several times per week and always about 50+ miles. I live ~20 miles from town. Yep the cheap battery in the Grand Sport won't last that long but not worth the PIA to plug in a charger!
However with the new C8 and it's speculated 48 volt system (as is being used on some European cars) it probably won't.
Last edited by JerryU; Jan 24, 2019 at 08:22 AM.
