I've been trying everything.
Magsafe stay's green, when powering up de machine (Macbook 6.1) with the battery connected, I hear the chime, see the apple logo on the screen and than the machine switches off.
When unplugging the Magsafe, holding the power button for 10 secs, connect the magsafe while still holding down the power button for 10 secs. once more hitting the power button, the machine swithes on with vens full speed. With or without battery connected, the battery sign in the displays shows a black cross and is not charging. Magsafe stay's green
When battery is connected, I need to do SMC reset, than unplug the battery, hit the power button in order to switch on the machine. Magsafe stay's green.
I noticed that the Magsafe green light blink's off and on every 6 secs