Grey Arris Touchstone Modem Backup Battery 8 Hour TM502 TM602 TM702 TM722 TM802

i'ma show you how to change your backup battery girl and your Chamberland garage door opener you'll know when it's time to change it you hear beep every 10 or 15 seconds and it'll do it all night so the first thing you want to do is remove this cover right here and I'm recording it so it's kind of hard for me to do is you just push them in on each side and the cover will fall down then you want to unscrew the light bulb once you unscrew the light bulb you take your Phillips head screwdriver and here to the right you'll see a cover and you turn it counterclockwise once you do that and just remove the cover and you'll see the battery inside and if you see this battery what you want to do is disconnect your negative and positive poles just pull them over a loose come off pretty easy and once you pull them off what you want to do is align your battery and slide it right out of the slot so i