Battery memory

When my brother inlaw gave me his laptop it about 5 years ago it had the original cell pack.
It started to not hold a charge after a while so I got a new pack. It was a good level Toshiba pack just like the laptop.

I didn’t follow a discharge plan and i’m guessing that was the reason this new cell pack only gave me maby 20 minutes of laptop use when unplugged.
So, I bought another cell pack and have been doing the discharge unplugged practice now. It is good to see the new cells give me at least 2 hours now.
Posting more to start some topics and posts and learning this format.

I do want to know the frequency rate of which I should be unplugging and discharging…