So i was watching a teardown of a charge 5 and saw that there are screws that need to be unscrewed in order for the ,,skin'' of the speaker to come off,
搬] Gear Show [维修]jbl音箱换电池-哔哩哔哩
1PCS For JBL Boombox 2 ND Bluetooth Speaker Motherboard Charging Board _ - AliExpress Mobile