Occasionally it will shine the bright green (normal) for a moment, but quickly dulls to the very faint green light. The charger light is always a very faint green light (same for both 65 and 85W chargers).

However, it will recognize each battery I put in (using About this Mac), and it will run on battery power when not connected to AC power. This Macbook will not charge a battery, any of the 4 Macbook batteries I have tried. This Macbook is the first generation, early 2006 model. I am having a Power/Battery problem with a Macbook (surprise surprise!). MacBook :: Battery Recognized But Charger Light Always Faint Green? Nov 4, 2009

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MacBook Pro, Mac OS X (10.7.3) View 1 Replies My battery died while listening to music today and when I plugged in the power supply, the computer will not accept the charge and the power supply light is blinking yellow but very faint. MacBook Pro :: Won't Charge - Faint Yellow Blinking Light On The Charger May 5, 2012

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