Hi Kimmy,

I would only use the battery when the laptop is not plugged in.

The advantage in having the battery in is in case of a power failure (or to recharge the battery). But even then, your word docs (e.g.) will still have the recover document function.

If you use the laptop for extended periods of time, there is a possibility that the laptop will discharge the battery over time (therefore reducing its life cycle). Not to mention that there were issues with batteries overheating (or exploding) for some brands…. It is a safety recommendation not to both at the same time.

Anyway, hope that helps.