How to open HTC Desire 820 / 816 & replace battery. - YouTube
SVNEO Mobile Battery for HTC Desire B0PF6100 2600 mAh Li-Ion 100% High Backup Original Mobile Battery for HTC Desire 820 (B0PF6100) : Amazon.in: Electronics
Ilc Replacement for HTC Desire 820 Mini DESIRE 820 MINI HTC | Zoro