Found installed in a rented house, its been beeping every 20 minutes or so for the last 5 days its driving me insane (more in comments). : r/whatisthisthing
GE Security Interlogix 60-781 12VDC, 17AH Backup Battery
LED EMERGENCY BACKUP BATTERY AND LED FIXTURES FOR SALE HALF OFF RETAIL PRICES OBO for Sale in San Antonio, TX - OfferUp
LiFePO4 36V 100Ah Lithium Battery BMS Solar Trolling Motor Golf RV Backup Power | eBay
Coral Box Backup Battery V2 - ReefBreeders.com
Coral Box Backup Battery V2 - ReefBreeders.com
Backup Battery – Konnected
200W Portable Power Station, Backup Battery for Emergency | Edward Creation | Reviews on Judge.me
WEKOME 10000mAh Magnetic Wireless Power Bank PD20W Inductive 15W Fast Chargers External Backup Battery For iPhone15 14 13 ProMax - AliExpress
The Best UPS Battery Backups of 2023
How to power your Whole House with a battery generator - Ecoflow Delta pro - YouTube
Best Power FERRUPS ME 500VA Replacement Battery - 100% Compatible
Von Duprin 900 Power Supply, Battery Backup Kit - CookandBoardman.com
Backup Battery – Konnected
Mighty Max Battery 6V 4.5Ah Streamlight Vulcan, 44007, Sho-me Rechargeable Sealed Lead Acid 645 Backup Power Batteries in the Device Replacement Batteries department at Lowes.com
Solar Battery Backup Power in ME, NH, MA | ReVision Energy
Battery Backup - Mack 'n Me Mobility Solutions
Amazon.com: Raion Power RG1250WP 12V 5Ah 041B0591 Garage Door Backup Battery - 2 Pack