Hi to everybody. I decided to make a small battery for to power QCX QRP transceiver in field conditions.
Developed a 3D model with the calculations that the frame of the battery will be made with 3mm. PVC
BMS pcb for 3 cells and 20A current bought here https://s.click.aliexpress.com/e/b5mbwpB6
Well, and a photos of step-by-step addition:
With the help of the laboratory power supply, the battery was charged with a current of 300mA.
The XT60 connector is soldered and all battery wrapped with an insulating tape.
And that’s all, I am waiting for a field day.