HR Smith Techtest 503-35-1 - Recharging & Conditioning G-Switch Battery Pack; Testing the Battery Pack

Commercial In Condence
Issue 17 - 11.04.18 - CN 10407
HRS1013-04-02
The G-Switch charging circuit works as follows. When the battery is fully discharged
there is a set time in trickle charge, (as fast charging a completely discharged battery can
damage it) followed by a fast charge. When fully charged, trickle charging re-commences.
5.1 TESTING THE BATTERY PACK
Testing a battery under load is the best way to gauge its condition. The following
table of measurements are intended to help ascertain the condition of the battery
pack, but is only intended as guide.
BATTERY CONDITION TERMINAL STATUS POTENTIAL
Just completed charging cycle Open circuit 6.5V to 7.2V
Just completed charging cycle 100 Ohm resistor
connected across terminals
6.9V
dropping rapidly
15 minutes after test on load 100 Ohm resistor
connected across terminals
6.5V
dropping slowly
After testing the battery can be put back on trickle charge to replace any lost charge.
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