Problem Charging Macbook

[Cooka]

I have an old 2007 Black MacBook. Randomly one day my old charger stopped working and I thought it was broken and threw it out and got a new one (Stupidly didn't test it on other computers).

Now here are the problems. This new charger worked for 3-4 days and has suddenly stopped working. It does charge my siblings macbooks and for some reason their old chargers work on mine, however, i feel its almost inevitable for their chargers to die on me if I use them. Does anyone know what the problem is or how to fix it?

 

[GGJstudios]

Try resetting the SMC and troubleshoot your MagSafe adapter. Instructions for both in the CHARGING section of the following link. This should answer most, if not all, of your battery questions:

Apple Notebook Battery FAQ​

 

[discounteggroll]

there is a firmware update for the black/white macbooks to work on the newer magsafe chargers (which I think have a silly design). Try doing software updates until there are none available