Using myVolts Ripcord to power devices with very low current draw, from a USB power bank | Shameless Plug
Powerbank keep-alive to power low current 5V devices | Audio Science Review (ASR) Forum
PJRC (Teensy) Forum
USB Battery Pack Keep-Alive Load Kit | The SWLing Post
18650 Battery Shield Keep Alive Circuit – SD Perry
Amazon.com: BENKS Magnetic Power Bank 5000mAh Wireless Portable Charger Compatible with Magsafe, Ultra-Thin Magnetic Battery Pack with USB-C Cable, for iPhone 14, iPhone 13, iPhone 12 Series, Blue : Cell Phones &
Powerbank keep-alive to power low current 5V devices | Audio Science Review (ASR) Forum
Smart Power Bank Keep-Alive | Zak's Electronics Blog
Smart Power Bank Keep-Alive | Zak's Electronics Blog
USB Powerbank "Keep Alive" Circuit - YouTube
Smart Power Bank Keep-Alive | Zak's Electronics Blog
Portable Charger - USB-A, 2600mAh Power Bank, Lithium-Ion, Black | Eaton
USB battery pack keep-alive load
Amazon.com: Portable Charger 30000mAh 18W PD USB C Quick Charge 3.0 Power Bank 5 Output 3 Input with LCD Display High Capacity External Battery Pack for iPhone Samsung Mobile Phone Pixel iPad
Sotabeams USB battery pack keep-alive load | Battery Pack Load | Ham Radio Accessories
Battery Pack Load
Smart Power Bank Keep-Alive | Zak's Electronics Blog
Power Bank Keep-Alive based on 555 Timer (KIT) from Colin Hickey on Tindie
The Flash power bank promises 100W USB type C charging, and just about everything else as well - NotebookCheck.net News
Portable Charger USB-A, 5200mAh Power Bank, Lithium-Ion | Eaton