Battery tenders / slow chargers


Propdave

Propdave

GT Owner
Mark II Lifetime
Jun 11, 2016
124
Calgary, Canada
Hello folks

Can you guys chime in on the best battery tenders / chargers to use when the GT is in storage? I have the CTEK chargers on my other cars but I saw an early post that the GT needs a certain kind of charger. Is that true or am I good with the CTEK?

Thanks

Dave
 
Think you're referring to the Braille thread. Li batteries need a higher voltage charger. CTEK is fine for the for the stock lead battery.
 
ctek is fine; might want to get the cigarette adapter and 12ft cord extension
so you can drape cord on rubber seal of door and close with no rubbing.

FORD included an OEM charger with cigarette adapter in pouch that came with car; it's
~0.75A trickle charger that has 20ft cord; $100 from vendors on this site or ebay (note it's not a float/maintainer with status lights.) Used mine 24/7 for last 10yrs.

Battery Tender Jr has a similar looking maintainer with status lights for $25 on amazon; some have had these fail.

I have posted links before

Note: ease of use is best feature of cigarette adapter v. Removing tub and hooking alligator clips to battery or other ports.
 
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CTEK works well.
 
Battery tender Jr. works well for maintaining and although I've had 2 regular Battery Tenders go bad never had a failure with a Jr.
 
I had 2 Jr. fail on me. Switched to a Ctek on my FGT.
 
a battery shut off switch works even better. have NEVER used a battery trickle charger on any of my GTs. open the hood and shut the battery off. works as a good anti theft device as well since it has a pull out key. jmo (PS- knock on wood, NEVER had a gauge failure either)
 
NorthwoodGT said:
a battery shut off switch works even better. have NEVER used a battery trickle charger on any of my GTs. open the hood and shut the battery off. works as a good anti theft device as well since it has a pull out key. jmo (PS- knock on wood, NEVER had a gauge failure either)
Click to expand...

I also have a shutoff switch using it only when I servicing the car and the power should be off. I don't like using it more than necessary as learned tables for a/f ratios and returnless fuel pressure get erased.
 
I've been using CTEK's on my "toys" for 14 years, the first CTEK is still in service, works great!
 
Thank you for the feedback everyone. I appreciate the help.

Dave
 
battery tender plus has a 10 year warranty
 
BlackICE said:
I also have a shutoff switch using it only when I servicing the car and the power should be off. I don't like using it more than necessary as learned tables for a/f ratios and returnless fuel pressure get erased.
Click to expand...

really? I've had special tunes and calibrations and never had anything get erased. no different than changing the battery.
 
Battery disconnect

This from the manual, I have had mine disconnected several times, although I have a Torrie tune so that may change the way the computer sees thing.
 

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I haven't verified this is the case, but it is widely reported to be so. I do know that P1000 code is set if you lose battery power. I have confirmed that reflashing the ECU does reset the tables which makes sense. If you have an SCT and livelink you can easily check next time you disconnect the battery by reading the PIDs for the tablle.

I have read the tables out to refine my MAF and returnless fuel tables in the ECU program so that even when zeroed out they will be close the the learned values.
 
OCD alert...

Nice small pouch for Battery Tender Jr. $5 add-on to your next order.

Fits charger, cord; 12ft extension cord; cigarette adapter, etc

Double zippered, strap, clear sleeve inside for instructions, registration, etc.

Installation time: 1 minute

https://www.amazon.com/gp/product/B0012TYNY2/ref=oh_aui_detailpage_o00_s01?ie=UTF8&psc=1

This should not be used as a Man-Purse!:biggrin
 

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I use the Ctek, and installed a remote connector inside the front wheel well for easy access.
 
Get w Kendall ie Nota4re who is a sponsor with Cooltech here. Has the Deltran with custom 05/06 mounting adapter which comes out front snout of FGT.
Been running it since 2006
 
The tender is supposed to be charging your car.....not in the bag.
 
I like the CTEK chargers. Used the factory issue charger a lot before that, for several years, never had a problem. OEM battery lasted a long time, I eventually replaced it pro-actively. I've also used Battery Tenders too, and they worked for me, but the CTEK provides more detailed status information if you get one of their upper models.

More recently also begin using a NOCO Genius multi charger that can charge one to four vehicles simultaneously.
 
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