I recently purchased the Sony a7 IV mirrorless camera and am looking for some reliable third-party battery options to serve as affordable backups to the pricey genuine Sony batteries. Does anyone have experience with particular brands or models of third-party NP-FZ100 batteries that work well in the a7 IV in terms of performance, charge capacity, and build quality? I'd like to find some cost-effective spares I can trust for those long shooting days. Let me know which ones you've personally used with good results in this camera. Thanks!