Well nearly , the 2 negatives joined and 2 epitaxial diodes (avoiding mutual discharge possibility) from the positives commoned and then on to the memory, is there some circuitwise reason? Both cells are from the same batch , so not as though "all your eggs in one basket" circumvention. Is the chemistry of this type of cell odd? 3V cells originally , could be 20 years, but removed from the pcb and out of circuit still 3V. Put 150K across either cell and it drops in voltage to 2.9V or so compared to just DVM loading. Remove and immediately recovers to 3V. Tried 5K6 over for 12 hours , dropped to 2.6V , measured a few minutes ago, removed the R and immediately recovered to 2.9V, I expect when I get back to it , it will be back to 3V with just DVM load
- posted
10 years ago