Long term storage and battery tender

[FreePenguin]

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I've had a Deltran Tender for 10+ years, and move it between the 4 cycles in the garage over the winter, a week on each one. Normally when I am away for a year, will just disconnect the negative leg of the battery. AGM's usually keep the charge no issues. Normal lead Acid will need a top off. I bought a new JR for the Mustang if I use it.

My main concern was what an extended disconnected battery would have on the computer systems of the Bullitt. Still not decided on what I will do.

I doubt it would do anything at all. it would just be a dead battery essentially, once it was charged back up, it should not be any different. its not like it will blow when the car is turned on. I mean, thats why there are fuses. to prevent issues of this nature.

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[19gtaz]

Which one you using? I never used any other and am not paid by Ctek to advertise. Just sharing my experience as my 2012 GT is a garage queen with a soon to be 10 year old battery from the factory. By the way it’s hooked on it year round and original battery has never been replaced or taken out of the car. I even bought another unit to charge my 86 GT. That car battery is out of the car as that is my street/strip warrior. Am original owner on my 2012 and 86 GTs. I love Mustangs and looking to buy a new Base 2021 GT soon and give my son the 2012.

I am not going to put down Ctek charger because I haven't researched it, it's probably a fine charger. But what you are saying is that your car is a garage queen. Batteries will typically last longer when left on any battery tender and not actually used in normal operating environment such as starting the engine (high current) and undergoing under hood operating temperatures (high temperatures). See that shield around your battery? There's a reason for it. If all the battery does is sit in a garage on a battery tender it will significantly increase the battery life. I have cars that are garage queens also. The batteries always last a long time. I have an Optima that is going on 11 to 12 years. It isn't used much and it is a significant factor in the life span. An Optima rep told me they have one that is 17 years old and still working, I'll bet it wasn't being used much.

 

[Rapid Red]

No gimmick. What’s incredible is the car battery is still the original from Ford when I bought my 2012 Mustang GT on December 29, 2011 and is still going strong. You ever heard of a smart charger? That’s what the Ctek is.

Just general information is all:

Not saying Ctek is not a good charger. I have a Ctek cause it can charge all current battery types.

For a standard lead-acid type the Battery Tender is capable.

Got 3 trickle chargers 2 BT, been married 20 years so they are that old. And the Ctek for the reason stated above.

 

[ORRadtech]

My main concern was what an extended disconnected battery would have on the computer systems of the Bullitt. Still not decided on what I will do.

I'm not really sure why you're having such concerns about this.
You say you've been disconnecting batteries on other cars. Unless they have all been made before the mid 2000's they are not substantially different than the Mustang. Have they suffered for it?? Someone wrote about a Mercedes but most cars don't use batteries for back up, they use capacitors. Taking the battery out will absolutely not harm anything. A simple check on YouTube will show you dozens of wrecked Mustangs restored over months and started again with no issues at all.
Try not to overthink this too much. Do what you usually do or put it on a maintainer, it really will be fine either way.

 

[Bulldog9]

I'm not really sure why you're having such concerns about this.
You say you've been disconnecting batteries on other cars. Unless they have all been made before the mid 2000's they are not substantially different than the Mustang. Have they suffered for it?? Someone wrote about a Mercedes but most cars don't use batteries for back up, they use capacitors. Taking the battery out will absolutely not harm anything. A simple check on YouTube will show you dozens of wrecked Mustangs restored over months and started again with no issues at all.
Try not to overthink this too much. Do what you usually do or put it on a maintainer, it really will be fine either way.

I wrote about the Mercedes, was my wife's car. General question, and has been answered.

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