New battery recommendations?

[particlewave]

Originally Posted by por356c

Hello guys - I am new to Boxsters, but I have to pick-up on what some of the guys have said here - why in the world don't you replace a dead battery with a sealed AGM like an Optima? No acid, no fumes, fantastic cranking power. They last forever. What am I missing other than it doesn't say Porsche?

David Preston

Ummm...AGM batteries are lead acid batteries, so they do have acid (not that it matters). The only difference is the absorbent glass mat plate separator material.
FYI, I've never heard of a battery labeled "Porsche", so your remark about that is weird.

Why don't I buy one? Because I used to make them, so am immune to the hype. The price increase weighed against any potential benefits in a standard passenger vehicle don't add up. Not to mention the high rate of defects due to complex manufacturing methods. The return rate for AGM at a certain battery manufacturing plant in St. Joseph is about 7-8 times higher than standard.

That's why I don't buy them. Standard lead acid is good enough for 99%.

[por356c]

The battery in my car was put in by the PO at a Porsche dealership and it says Porsche on it - not weird - it says Porsche. Maybe AGM is hype - I guess I just don't realize that. All I am saying is that AGMs don't leak acid - no accidental spills, they have a much longer life span, and their cranking power is unquestioned and there is no fumes. They cost maybe $125 and how can that not be a good long term value? Or you can but some $60 battery every two years.