
Installed a few weeks ago for use with a non wired ring doorbell in a country house which was causing the battery to drain every few months especially in cold (freezing) weather. Has worked great so far, keeping the doorbell battery at 90% or higher at all times. Looking forward to no more fiddling with frozen fingers to remove and charge the battery when it's -10 degrees in January! Very easy to install if you can route the wire to the outside doorbell bracket. I drilled a small diameter hole on the outside of the wall and sealed it with caulk after threading the wire through.

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