Amazon.com: Anker Charging Dock for Oculus Quest 2,
The '500' refers to the number of COMPLETE charge/discharge cycles (100% to 0% to 100%). This is comparable to the typical Android smartphone. In real-world use, you should get about 3 years of use from the rechargeable controller batteries.-----Regarding the availability of replacement parts. Anker now sells a replacement parts kit on Amazon.
Get Price