Aqara G4 - External Battery?

Hi All,

Recent owner of the Aqara G4 here. Loving the product, looks great and for the majority, It’s been working great (Other than a random disconnect, which a full power cycle of the chime and doorbell solved).

I am unable to provide AC Power To the Camera itself due to its location and being in a rented property, But has Anyone looked into whether its possible to extend The battery Life through an external 12v battery pack and wire through the terminals On the device?

If possible it may be a good hack!

KEESIN AA 12V Battery Holder Case Plastic Battery Storage Box with ON/OFF Switch and Fastening Cable Ties (8 Solts*2 PCS) - Amazon