How to make a DIY cordless drill flashlight?
How can I avoid damaging my power tool battery with a DIY floodlight? What do I need to know before attempting this?
To make a DIY battery-powered floodlight, you first need to find out if your Li-ion battery has deep discharge protection. If you have a built-in BMS board, then you can safely build the floodlight yourself.
You'll also learn how to test an LED light and how to test LEDs.
XP376-2B14C-V2 floodlight schematic