NewPower99 520 battery replacement kit

[DaveQB]

https://www.newpower99.com/Garmin_Edge_ ... %20520.htm

Hi all,
Can anyone vouch for this? My 520 is not lasting as long as it used to, to the point I need to take a battery pack with me half the time.
I do have a recalibrate the battery measuring by running it down to 0% every 2 months or so. That improves it from 2 hours to 4-5 hours.
Anyone tried this Power99 solution? I think I will need it soon.

[A_P]

Getting the screen off the base is your biggest issue
I'd like to know what is in the kit as i have similar battery life with one of my 520