UPS APC RS 1000 Repair - iFixit

Eaton 5PX G2 1440W Line-Interactive UPS, Network Card, 120V, 8x 5-15R Outlets, 2U

APC Battery Charger RS 1000 User Guide

APC Back-UPS Pro 1500S, 1500VA, SineWave, 10 Outlets, 2 USB Charging Ports, AVR, LCD interface - BR1500MS

1 kVA / 900 Watt Power Conditioner & Battery Backup UPS – Battery Backup Power, Inc.

Upgraded my APC UPS to Lithium(LiFePO4) : r/homelab

APC UPS - iFixit

Repair - APC Back-UPS M1000

APC Smart-UPS, Line Interactive, 750VA, Rackmount 2U, 120V, 6x NEMA 5-15R outlets, SmartSlot, AVR, LCD, Not for sale in the US - SMT750RM2U

APC Back UPS RS 800 user manual : Free Download, Borrow, and Streaming : Internet Archive

I/O PCB - Troubleshooting Guide - CHC

APC 870-13458 CBS058A03-00 BACK-UPS RS 1300 BEZEL W/ DISPLAY CIRCUIT BOARD

Thomas' blog Teardown #2: APC Smart-UPS 1000VA UPS