On the JD-90 the charger had two timers, one was a manual turn on that
did the main charge, the other was an automatic that 'burped' the batts
once a day for a few minutes. JD recommended that the charger be
plugged in all the time the mower was parked to allow that 'burp" to
work. Unfortunately that timer died several years ago. {:-'{
wombat
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