Can CTEK bring a battery back to life?

[Sidewaze Samm]

I had intended to use my zed sporadically over the last couple of months, so did not connect to my CTEK this year due to the hassle (accessing through outside cover, distance to opening window for power lead etc). But for various reasons, not least the weather, I haven't driven it.

Lovely day today; battery completely dead (registering 1.5V). Connected CTEK, but it turns off after 2 mins indicating it thinks a battery is not connected.

So is my previously fine 2-year-old battery totally bolloxed? Is CTEK playing up? Is there any way at all to get charge into the battery? Or, is it just an expensive lesson in not being so lazy next year?

 

[Pondrew]

The ctek needs a minimum 2v to do anything.
You really need to scrap the battery and get a new one. Even if you can get any current into it from, say, a bulk charger it could be dangerous and even if not chances are it will never take a proper charge again.

 

[Usel]

I had a car at work with a battery under 2v. Removed it and put it on a normal battery charger. Left it to charge for a few days and its back at its full voltage. The battery is just short of 3 years old and had 830 amps when new. The battery tester is now reading 670 amps.

Running it down to 2v will shorten it's life but it won't always kill it the first time it happens.

Do you have an auto electrician nearby? The one local to us will charge up battery's again for you and test them but we have been loyal to them for 30 years so maybe this isn't a common thing to be done for new customers but is worth a go.

 

[enuff_zed]

For the effort and outlay involved, it may be worth somehow getting it above the 2v needed, then running it on the CTEK maintenance/recovery cycle. Do it somewhere safe, off the car.
If it doesn't work, you've lost nothing but some time.

 

[Matty_Z4]

For the effort and outlay involved, it may be worth somehow getting it above the 2v needed, then running it on the CTEK maintenance/recovery cycle. Do it somewhere safe, off the car.
If it doesn't work, you've lost nothing but some time.

@OP FWIW Heed this advise "Do it somewhere safe, off the car." The "Recovery" cycle pushes 15.8v into the battery which is a smidgen higher than what the car wants so may cause some electrical screwage.

 

[Scooba_Steve]

So is my previously fine 2-year-old battery totally bolloxed

I'd be tempted to take it back and try a warranty claim.

In future if you don't plan to use more than once a week just disconnect the battery and put a cap over the negative post, takes 1 min.