Hello Roy, I replaced the original batteries with two 12 Volt 3.3 Ah SLA batteries and a string of diodes between the batteries to compensate for the different battery voltages.
This is not perfect, but it works for about 3 years before the batteries need replacing. I used 7 1N4004 diodes in series to prevent overcharge and a MBRF1045 diode across the diode string to allow discharge. The SLA batteries float at 13.7 volts each. Be careful to not let the metal battery box touch and short the meter terminals. I used some of the original battery box plastic strips between the now loose battery box and the meter. Best, Joe, W7LUX --- This email has been checked for viruses by AVG. https://www.avg.com _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
