If I can use this topic, I like to share my experience.
I was testing my friend Opel Meriva A 1.7CDti, which has a starting problems. After performing battery test, it turned out, that starter was obviously bad, just looking test resaults. Even car battery has a bad cell.
After replacing starter, with exchanged unit, and new Varta blue dinamic battery fited, I performed battery test again! I always do this test after replacing components, just to check charghing system. It turned out, that alternator ripple is too big (arround 1V). But why is this happend after replacing starter, and a fresh new battery?
After spending 3 hours researching, and testing, its turned out, that the problem is my laptop IBM T400 connected to the mains. Even with laptop plugged in TRUST 12V car chargher seems to have same issue.
Below is psdata file, when laptop is unplugged to main (laptop have bad battery) and other one is when I plugged on main.
Now I`m buying new battery for my laptop.
- (4.01 MiB) Downloaded 195 times
- Plugged 220V.psdata
- (7.32 MiB) Downloaded 197 times