Recommended car battery

birdy_z4 · Post by **birdy_z4** » Mon Oct 31, 2022 1:42 pm

Anyone got a recommendation for a new battery

Mine is a varta currently and car is a 2010 3.0 without start stop

DevonPaul · Post by **DevonPaul** » Mon Oct 31, 2022 2:01 pm

Tayna are generally best for choice and price. If the one you had has been fine for 5 years or so, I'd get the same again.

pvr · Post by **pvr** » Mon Oct 31, 2022 2:10 pm

Anything but a Bosch

B21 · Post by **B21** » Mon Oct 31, 2022 2:25 pm

I use Varta from Tayna…

Yuasa, Bosch, Exide are all tier 1 suppliers…either 70ah or 80ah AGM

Andrew Sheldon · Post by **Andrew Sheldon** » Mon Oct 31, 2022 3:02 pm

pvr wrote: ↑Mon Oct 31, 2022 2:10 pm Anything but a Bosch

Its funny you should say that but I bought a Bosch in SW France and the morning I left for the UK the battery failed and never kept a charge. It was brand new, I had to limp back to the UK without air con and only 3 stops for 700 mile journey, it was a nightmare and so stressful. I did however buy another bosch and that one seems fine, I guess Im a glutton for punishment.
I did wonder if in transit the battery was laid on its side and the battery acid leaked out causing it to fail..

pvr · Post by **pvr** » Mon Oct 31, 2022 4:51 pm

The failure rate of the Bosch 3/4/5 however long the warranty chosen is huge, and I don’t want to keep swapping a battery for a new one during the warranty. Also, the nee one does not reset the warranty period so after 3 replacements the warranty expired.

Zed Baron · Post by **Zed Baron** » Mon Oct 31, 2022 5:58 pm

Mines a 23i (no start/stop) and this is what I ordered: Varta Start-Stop Silver Dynamic AGM 570 901 076 E39 12Volt 70Ah 760A/EN.
Exactly the same as the one it came out of the factory with. Shop about, I ended up getting it from the Battery Group, on that occasion it was cheaper than Tanya.

ronk · Post by **ronk** » Mon Oct 31, 2022 6:20 pm

pvr wrote: ↑Mon Oct 31, 2022 4:51 pm The failure rate of the Bosch 3/4/5 however long the warranty chosen is huge, and I don’t want to keep swapping a battery for a new one during the warranty. Also, the nee one does not reset the warranty period so after 3 replacements the warranty expired.

The Bosch battery in my 335 didn't see three years - It was replaced under warranty by the dealer at about £400

Colin_E · Post by **Colin_E** » Mon Oct 31, 2022 6:33 pm

There are plenty of instance on the 'web' of people claiming that Bosch & Varta come out of the same factory & are identical. My 2015 E89 was built with a Bosch that served well for 6 years and may well have lasted longer but out of caution I replaced early last year with a Varta from Tayna.
In my experience so long as I've been fairly diligent connecting up to a Ctek (or similar) whenever the car isn't getting regular use, decent batteries have lasted for ages
The Bosch in my old Z3 lasted 14 years.
I guess we all have different experiences of these things.

ronk · Post by **ronk** » Mon Oct 31, 2022 6:37 pm

The Bosch battery in my first Z4 lasted 12 years before it died!

birdy_z4 · Post by **birdy_z4** » Mon Oct 31, 2022 7:01 pm

Thanks all for the suggestion I will keep with the varta

Nanu · Post by **Nanu** » Mon Oct 31, 2022 8:35 pm

birdy_z4 wrote: ↑Mon Oct 31, 2022 7:01 pm Thanks all for the suggestion I will keep with the varta

Price wise as previously mentioned Tayna is usually the cheapest

javis20 · Post by **javis20** » Mon Oct 31, 2022 11:44 pm

I have a Bosch AGM. Works flawlessly.

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