Must be plugged into an outside outlet to keep the battery charged. Works well and was very easy to install. My camera is high under the ceiling and I had to constantly change the battery using a ladder due to its high activity. Now the battery is always charged. I plugged it into an outside outlet but even if someone unplugged it the battery would be well charged, so for security reasons it doesn't matter if a thief tries to unplug the power adapter, you'll still have power for days on a fully charged battery !
Canvas Camera Case Bag With Shoulder Strap For DSLR/SLR Cameras - Black, Medium Size By Evecase
30 Review
Black Leather Headphone Stand: Universal Headset Holder For Gaming And More - SAMDI Product
42 Review
Protective Silicone Cover For Samsung Galaxy Buds & Buds+, Shock Resistant With Carabiner And Fast Wireless Charging Compatibility - Fironst Case For Galaxy Earbuds 2020 (Black)
52 Review
Canon Nikon Sony Panasonic FujiFilm Olympus Pentax DSLR Camera Bag, Evecase Large Vintage Canvas Messenger SLR Shoulder Strap Case - Gray
45 Review