=  NOW 35 WPM  =  TEXT IS FROM JANUARY 2022 QST  PAGE 45 =

HOUR AND TEST CURRENT DISCHARGE RATES FOR MY SPECIFIC BATTERIES AND
APPLICATION.  ONCE YOU PRESS START, THE CBA V SOFTWARE WILL CHECK THE
BATTERY AND BEGIN THE TEST.  WHEN THE LIPO TEST WAS COMPLETE, I EVALUATED
THE TWO LEAD ACID BATTERIES.  I OVERLAID THE THREE GRAPHS BECAUSE THESE
BATTERIES WOULD ALL BE USED IN MY G90 20 W APPLICATION.  AS I SUSPECTED,
THE AMP HOUR CAPACITIES OF ALL THREE BATTERIES HAD DROPPED OFF DUE TO THEIR
AGE AND USE.  THE LIPO BATTERY HAD ABOUT 3R8 AH OF CAPACITY, AND THE LEAD
ACID BATTERIES HAD ABOUT 3 AH.  THIS IS NOT TOO BAD, AS IT MEANS I CAN GET
ABOUT 3 HOURS OF USE WITH EACH BATTERY WHEN USING MY G90.  FIGURE 4 SHOWS
THE RESULTS PLOTTED VERSUS MINUTES AT THE 1,260 MA AVERAGE CURRENT.  NEXT,
I TESTED THE 10 CELL NIMH BATTERY PACK WITH THE CBA V AT THE 170 MA AVERAGE
CURRENT EXPECTED FOR MY QCX MINI TRANSCEIVER.  THESE BATTERIES WERE
PURCHASED NEW, AND CLAIMED TO HAVE 2R8 AH OF CAPACITY.  I CHARGED THE 10
CELL AA NIMH PACK WITH MY THUNDER AC680 SMART CHARGER.  THE RESULTS WERE
HORRIBLE.  I RAN THREE SEPARATE TESTS AFTER RECHARGING THE 10 CELL BATTERY
PACK.  THE FIRST TEST SHOWED THE BATTERY PACK TO ONLY HAVE ABOUT 0R8 AH OF
CAPACITY.  BUT THIS GOT SIGNIFICANTLY WORSE WITH EACH CHARGE/ DISCHARGE
CYCLE AS YOU CAN SEE IN FIGURE 5.  I COULDNT BELIEVE THESE BATTERIES WERE
THAT BAD, AND SO I LOOKED AT THE INDIVIDUAL BATTERY VOLTAGES WHEN CHARGED
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