Is my Battery OK?

Is it one of the external 3 cell 18650 HP’s? Even when they were new, they’re known for bad battery life on anything other then a Celeron model from Walmart. This is one of the few laptops left you need a 2nd battery in your bag to not need to keep the charger on you.

The problem with these is the battery is too small to be long enduring on systems with good hardware (i5/i7 or A8/10 APU). As soon as you drop to 80% capacity, the runtime goes out the window as well. The p263nr is one of the worst ones with this battery since you’re combining a low capacity battery with an A10 APU, since it's a higher end spec. On top of a high end APU the AMD chips were not as power efficient until Ryzen came out and put them on par with all but the highest end Intel processors.

Since the battery is still new, you have time to calibrate it and get a realistic metric of what to reliably expect for 1-3 years. I’ve detailed the process here. A lot of the information applies to older laptops that have seen some use, so some warnings may not apply to you.