18650 battery holder / Batteryholder 3x3

by Blackbyte

Battery holder for S3 18650 batteries. The holder can be extended as required with screws for secure mounting with M5 screws. Total dimensions 66x66mm in various diameters. My best result was the 18.8mm version. To save filament and time, I built various test rings in all possible diameters. I used this holder for operation in a UPS/solar storage tank. I assume no liability for damages!