Tayna Battery warranty

Danwilderspin

Right - like buses - another one from me after years of nothing 😂

5 years ago I bought a Varta car battery from Tayna - I went for the upsale as it had the 5 year warranty.

Fast forward before Xmas the battery was struggling to start the car after 24 hours. No drains etc. put it on trickle charge over night was ok in the morning but then got stuck at work and called it a day. 

Thought it would be under warranty so borrowed temporary battery lion brand slightly smaller and surprise surprise my issues went away.

spoke to Tayna as it only had 2 weeks left of the 5years and they told me where to send it.

i then got this email - 

“ I have completed the testing of your battery and am happy it is healthy and ready for use.

The battery came back to us at 12.23 volts.

I have fully charged it and it is now showing 12.78 volts with 841 CCA. In addition, I have also used a drop tester to perform a simulated start test, to check the battery can hold voltage under load, and the voltage is holding at 10.65 Volts (anything above 9 volts is considered healthy).

Please confirm the delivery address and we will return asap.”

Now there is clearly a fault as a new to me battery fixed the issues… 

I communicated this back along with the fact it’s meant to be a 920cca battery and they only read 841cca and all I got was this 

“ No in all honesty for the age of the battery it's in fantastic condition and has no manufacturing defect at all”

Where can I go with this/where do I stand? They are chasing to deliver the faulty one back.

Thanks for reading 

fwor

There are a couple of things that can cause the symptoms that you saw. One is a thin layer of corrosion that can form on the battery terminals, and another is corrosion at the other end of the battery lead (usually the negative connection to the chassis). In both cases, the process of disconnecting the battery terminals can (possibly temporarily) disturb the corrosion and make the connection good again. So it's possible that either of these might have been the underlying cause of your problems.

In your situation I would re-fit the Tayna-supplied battery and see if things behave Ok.

Alderbank

A fall of less than 10% in CCA for a 5 year old battery is very good. The capacity loss will be greater than that but I agree that the battery sounds healthy for its age.

If your car won't start with a CCA 90% of nominal, even with the recent cold spell, I would be looking at the car rather than the battery. Most cars will start with about 50% CCA.

Your trickle charger might be a culprit as well. Most will work OK to charge a standard SLI battery if left long enough but not all work well with an EFG or AGM.

Danwilderspin

Alderbank said:

A fall of less than 10% in CCA for a 5 year old battery is very good. The capacity loss will be greater than that but I agree that the battery sounds healthy for its age.

If your car won't start with a CCA 90% of nominal, even with the recent cold spell, I would be looking at the car rather than the battery. Most cars will start with about 50% CCA.

Your trickle charger might be a culprit as well. Most will work OK to charge a standard SLI battery if left long enough but not all work well with an EFG or AGM.

This is the thing - the temporary battery is 700cca and it starts fine everyone which is what makes me thinks this is not right 

born_again

Danwilderspin said:

This is the thing - the temporary battery is 700cca and it starts fine everyone which is what makes me thinks this is not right 

Which is why this is sound advice.

One is a thin layer of corrosion that can form on the battery terminals, and another is corrosion at the other end of the battery lead (usually the negative connection to the chassis). In both cases, the process of disconnecting the battery terminals can (possibly temporarily) disturb the corrosion and make the connection good again. So it's possible that either of these might have been the underlying cause of your problems.

As far as the warranty goes. Have a read of their T/C & what does it say?

Danwilderspin

born_again said:

Danwilderspin said:

This is the thing - the temporary battery is 700cca and it starts fine everyone which is what makes me thinks this is not right 

Which is why this is sound advice.

One is a thin layer of corrosion that can form on the battery terminals, and another is corrosion at the other end of the battery lead (usually the negative connection to the chassis). In both cases, the process of disconnecting the battery terminals can (possibly temporarily) disturb the corrosion and make the connection good again. So it's possible that either of these might have been the underlying cause of your problems.

As far as the warranty goes. Have a read of their T/C & what does it say?

Happy to try it again and see what happens if I get it back 

snurbi

WILL NEVER USE TAYNA BATTERIES AGAIN - Bought a premium (Bosch) battery, with 5
year warranty (joke) late 2025. Battery kept discharging and would not
fully charge since fitted. Finally battery failed with charger
indicating battery fault and impedance meter proving battery failure.
WORSE - Tayna returns form does not work. Telephoned/emailed them full
details NO RESPONSE.

IT APPEARS FROM CLUB FORUMS THAT TAYNA WAS RECENTLY TAKEN OVER AND THEIR SERVICE IS NOW VERY POOR, REFUSING WARRANTY CLAIMS, IGNORING CLAQIM ETC

Aylesbury_Duck

https://forums.moneysavingexpert.com/discussion/comment/82019679#Comment_82019679

Hmm. I've had trouble with Bosch batteries over the last 6 months. Bought a new one in July, by October it completely failed - tested by the RAC and wouldn't charge back up at all. Euro Car Parts were excellent - took it back and gave me a new one without any quibbling. Come February the second battery failed to start the car and was showing 11.6v after only one week of no driving, and again, ECP took it back and gave me a new one. I'm monitoring this third one and it's not great at holding charge - after a week of no driving it's showing 12.2-12.3v - enough to start the car at this time of year, but in winter I suspect I might need to trickle charge it ever so often. Not a problem because it lives in a garage when unused. I've checked the terminal clamps and end of the negative connection, they're fine. The voltage when the alternator is running is 14.5v so that all seems ok, and after a decent drive the battery charge is 13.5v then settles at 12.8v once everything's cooled down. I've checked for current draw and it's negligible. I tried an old cheapo Lion battery for a few weeks and it held its charge normally. I've come to the conclusion (based on a small sample of three, admittedly) that there's been a 'bad batch' of Bosch batteries.

forgotmyname

Same with Bosch batteries but not with Tayna, battery returned and a new one arrived within a week. Although that
may not be an option for some people.

If it drained flat in one day they I would suspect a vehicle fault not the battery, the issue I had was I put the brand new
battery on charge as I always do and it was on charge for a very long time which was not normal.

I use Yuasa batteries now.