I have 2 battries installed on my laptop. A travel battery and the original battery. The travel bat gets used up 1st, then the original. My question is, how do I transfer from the travel bat to the original bat without completely draining the travel battery? I'm afraid that constant complete drain of the travel battery will shorten its life.
Laptop is a HP NX6125. BTW, I already lost the manual a long time ago so I cant check it.