Which battery is primary 47

[Lee_b5678]

Is primary 47 the main battery??

[BeemerBiker]

Go the the below site and enter your serial number
https://partsurfer.hp.com/partsurfer/

Look for the part you need such as fan, cable, battery etc
If looking to replace a cable (for example) the HP part# is usually on a tag and the manufacturers part is sometimes printed on the cable. If no picture is shown then search for images of the listed HP part# and compare it to your broken part.

Once you find the part number you can search the internet for a vendor. Amazon, eBay, Aliexpress all have their own search engines.

In this case the 47 is probably the number of AMP hours the battery can supply 

Please run the battery report and post  the summery
you run the battery report by bringing up the administrator command windows "cmd" and running powercfg/batteryreport as shown below

After entering that explorer line you should see something like the following. You will have to click on it as it is long
http://stateson.net/docs/SP4_battery-report.html
You can use the WindowsKey + shift + S to copy and paste a small image if you want.
Battery should last about 5 years but less for gaming systems. Have you done a battery calibration?