UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Easy way to measure battery supply current.

Biggles · 5th Jul 2017, 5:22 pm

I can't claim originality for this idea but if you need to measure how much current a set is taking from it's battery, solder wires to either side of a small piece of double sided PCB, and insert it between cells in the holder. Current can then be easily measured with an ammeter connected to the free wires, as the PCB breaks the circuit, enabling a series measurement to be made. It may be necessary to build up the connections with a blob of solder to ensure a good contact with the cells.
Alan.

5th Jul 2017, 5:22 pm	#1
Biggles Rest in Peace Join Date: Feb 2004 Location: Hexham, Northumberland, UK. Posts: 2,234	Easy way to measure battery supply current. I can't claim originality for this idea but if you need to measure how much current a set is taking from it's battery, solder wires to either side of a small piece of double sided PCB, and insert it between cells in the holder. Current can then be easily measured with an ammeter connected to the free wires, as the PCB breaks the circuit, enabling a series measurement to be made. It may be necessary to build up the connections with a blob of solder to ensure a good contact with the cells. Alan.