Is there a way to change the output voltage of a battery charger?
I'm not talking about the variable output voltage chargers, but cheap regular ones. As an example, can I recircuit an old laptop charger to charge a 36v or a 48v battery?
Supposing the that current is not an issue (since the current output is similar in laptop battery chargers), I would simply need to change out a particular resistor or the LM piece right?