Liftmaster 485LM Battery Backup for Liftmaster
The Liftmaster 485LM Battery Backup for Liftmaster 3850 Opener is very simple to install and can only be used with Liftmaster 3850(sold separately). This reliable backup system is always charged and ready and willpower your garage door to open and close up to 20 full cycles when the power goes out. A bright LED lights let you know that the system is working or when the batteries need to be replaced.
JEWEL KADASH –
this little guy saved me a time, we were going out and the power was down, glad I got it. the wires were very sensitive and I had to pay attention not to mess things up
great quality and excellent performance. I found this item in the market, but it was waaay too expensive for me to get, and to find it here with this great price is amazing
thank you so much for the fast delivery and customer service, I had an old model but it didn’t last for a year, hopefully this one will 🙂