Batterieprobleme? | Posts 16+

Hutfahrer wrote:

By the way, I learned today in another Japanese forum: It even works with even less battery power! A 1.1-liter (eight-valve) engine was started in a small car using a 22 Ah motorcycle battery. In contrast, a 1.0-liter triangular file was sent out with a 30 Ah battery.

THAT would really be something for ULF .

I also immediately thought of Ulf.

If you're thinking of me, here's my current battery story:
On Friday, Christel drove her Polo to the store. She got back in, turned the key to start it, but instead of restarting the engine about 5 seconds later, the battery completely died, to the point where the starter motor didn't even make a clicking sound.
It was a full-size car battery designed for TDI engines, with a capacity of 74Ah / 680A and terminal caps.
Despite a minimal idle current of around 10 mA, a functioning lithium battery system, regular acid checks, and topping up with distilled water, it only lasted just under 6 years.
The acid densities immediately after failure were all still in the well-charged range (above 1.24 kg/l), but when loaded with a 0.16 Ohm test resistor, the terminal voltage drops to approximately 1V, and there is a slight fizzing sound coming from the battery. Therefore, the battery has either a faulty cell connector or a broken grid.
Since I had a battery of the same size from my Ibiza that was available as a (regularly charged) backup, I installed it in the Polo before going to the store, and now it's working again.

Based on my positive experiences with the 45Ah / 450A minibattery in my TDI Ibiza over the past ~3 years, I will purchase a similar unit. I will install it for a few months, drive with it (to identify any manufacturing defects during the warranty period), and then put it aside as a spare: http://www.battery-kutter.de/Blei-Akkus-oxid-1/Starterbatterien-PKW-LKW/Intact-Race-Power-RP50-12V-50Ah-520A-EN.html
The ASZ Polo originally came with a 570A Varta battery, the Ibiza has been using 450A batteries for years, and the Racepower battery is roughly in the middle, so it should also be sufficient for the Polo.

"Friday was apparently the scheduled date for a battery test. The battery in my mother's car failed without any warning or indication, while she was refueling in Masuria (Poland). A replacement couldn't be found in the small village, and the gas station owner spent half an hour on the phone. The destination was only 17 km away, so they decided to take a taxi to the hotel that had been booked and paid for. The car was left at the gas station owner's private property, and he promised to have it running again by Saturday afternoon at the latest. He almost kept his word, but the installation of the replacement battery had to wait until after the church service. Before the service, he called my mother urgently at the hotel and asked for 211 PLN (Polish Zloty) upon pickup around 1 pm. This is approximately 50 EUR, which seems like a reasonable price for a gasoline car battery in a small car. I don't know the exact original size or what was used as a replacement. He didn't charge for the labor, but according to my mother, he received a tip."