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Old Oct 5, 2021 | 02:53 PM
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Default battery tender failure

Tender is only 11 months old and upon plugging it in completely dead. Power supply is good, ant ideas?
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Old Oct 5, 2021 | 02:57 PM
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Is it the brand mane one "Battery Tender"?
All I use, have two & going on 6 years.

I usually do this when duped with a junk product, have done it numerous times.
Buy another of the same one & put the crap one in the box & return it
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Old Oct 5, 2021 | 03:07 PM
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Got it from cultrag its the one with the corvette flags. They don't pick up phone or return calls but they returned Email and told me to take it to ant GM dealer.
Called two dealers with no luck
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Old Oct 5, 2021 | 03:43 PM
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All I have ever used is the Battery Tender Jr. Great products. In nine years, I have only had one go bad. They are inexpensive, around $25 or so.
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Old Oct 5, 2021 | 03:48 PM
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this is the one that plugs into 12 volt
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Old Oct 5, 2021 | 04:33 PM
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Did you push it all the way in? Or is it dead with 120v on it as well?
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Old Oct 5, 2021 | 04:50 PM
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Anything man-made can fail, often relatively quickly. Over the years I've had 2 out of perhaps a dozen "Battery Tender" brand maintainers fail. It happens. Buy a new one and go on.
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Old Oct 5, 2021 | 05:26 PM
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I have used Deltran Battery Tenders for over 34 years with no problems.


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Old Oct 5, 2021 | 05:54 PM
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Dead with 120volts, thought maybe there was a fuse or something I was missing
The deltran is great but too much of a hassle getting to battery with clips
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Old Oct 5, 2021 | 06:43 PM
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Originally Posted by slant6
Dead with 120volts, thought maybe there was a fuse or something I was missing
The deltran is great but too much of a hassle getting to battery with clips
It comes with an adaptor that you mount to the battery & has a plug with cap on the other end.
Pretty simple & quick once you install it.
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Old Oct 5, 2021 | 08:32 PM
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Originally Posted by vivasantana
It comes with an adaptor that you mount to the battery & has a plug with cap on the other end.
Pretty simple & quick once you install it.
Mine didn't come with it but I ordered one on Amazon for like $8.
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Old Oct 5, 2021 | 08:44 PM
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Battery Tender® Quick Disconnect Cigarette Plug Adaptor Cable

https://www.batterytender.com/Cigare...RoCdd0QAvD_BwE

Last edited by wrecker3; Oct 5, 2021 at 08:51 PM.
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Old Oct 5, 2021 | 09:30 PM
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[QUOTE=slant6;1604123328]Dead with 120volts, thought maybe there was a fuse or something I was missing
The deltran is great but too much of a hassle getting to battery with clips[/QUOTE]

Really??? Do the battery tender lights come on, without connecting to the car? If not, then it’s bad!




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Old Oct 5, 2021 | 09:59 PM
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I would think your GM battery tender should come with hopefully a one year warranty, but when I checked the paperwork with mine it had no mention of a warranty. Unfortunate that two dealers would not assist you - perhaps try another and do it in person.
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Old Oct 6, 2021 | 05:39 AM
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Originally Posted by slant6
Tender is only 11 months old and upon plugging it in completely dead. Power supply is good, ant ideas?
Go buy another one
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Old Oct 6, 2021 | 07:57 AM
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From a electronics point of view. Cetek's run very hot, not good for a long life in electronic applications.

Cetek also grinds off the part numbers on the IC chips inside so if you know how to repair electronics your out of luck. Really, grind off the p/n's, no one in electronics mfg does this except really low type of companies.

I have a little inside on this subject since my entire career has been in electronics for over 55 years.
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Old Oct 6, 2021 | 08:07 AM
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Pretty sure your battery maintainer is made by CTEK. The maintainer that was included in the "battery protection package" back in 2013 was made by CTEK. That unit lasted until last year and I replaced it with a CTEK MXS 5.0. The new one comes with a 5 year warranty and with the plug in adaptor was $120 direct from CTEK.
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Old Oct 6, 2021 | 09:10 AM
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Originally Posted by slant6
Dead with 120volts, thought maybe there was a fuse or something I was missing
The deltran is great but too much of a hassle getting to battery with clips
This...
Amazon Amazon
and a battery tender and you will be set!

~Tony

Last edited by lotecredneck; Oct 6, 2021 at 09:12 AM.
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Old Oct 6, 2021 | 11:19 AM
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My new tender was defective as well. Took it to my dealer, gave me a new one.
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Old Oct 6, 2021 | 11:54 AM
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I own 5 Battery Tenders, incluiding a dual phase charger for my F250. A couple are over 30 years old. Never had a problem w/any of them.
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