Problems with car inverters for MacBook Pro notebooks?

Hello. I tried myself like 3 type of different inverters. I even ordered a german-made one 300W when I own a Model No: A1425 Part No. Z0PW0000Q

and they all have the same symptoms. Is charging for a period then the led is closing and is restarting the charging. First I thought is a power related problem. Many cheapo Wallmart type of inverts, are rated at let's say 500w but they can barely drive a 100W bulb. I think this inverter of mine delivers one is on the label.

Anybody got this problem also? What should be?