If you are going to design something to turn on a trickle charger, why not include the trickle charger in the design and not buy a dozen of them?
Again, I am no expert, but when you bulk charge you keep the constant voltage and when you trickle charge (or top off if I am using the wrong term), don't you keep constant (and low) current?
couldn't we do similar with PWM (since that is the fad)?
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