Measure the amps you are charging them with, and charge them at C/10, where C is the capacity of them. Say you have 1200mA NiMh batteries, charge them at 120mA overnight. You can charge up to C/1, but be careful not to overheat the cells. You should be able to hold them in your hand.
Then put some sort of a load on the batteries, and measure the voltage on each individual cell. As they discharge, the weakest cell will drop in voltage faster than the rest. Keith KB9WMJ ----- Original Message ----- From: "Jim GM" <[email protected]> To: "Elecraft" <[email protected]> Sent: Sunday, August 17, 2014 6:48 PM Subject: [Elecraft] NiMh batteries How do I test? I have 8 NiMh batteries and charged them for 16 hours. Charge lasts 5 minutes before KX3 goes dead. Minimum voltage is set for 8.4V. with a 13.6 volts 50 amp DX Astron supply max charge voltage get up to 10.6 VDC says my KX3. When checking the voltage independantly on each cell they all give me the same reading on my battery tester saying they are good so the tester is full of it. How do I test these cells for find my bad one or 2? -- Jim K9TF ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
