The content from this book is identical to the content from the E-book, except the pages regarding the usable trickle current. Please see the page where the E-book is published on the Lulu website. Much more information can be found in the preview on the Lulu website.IMPORTANT: the trickle charge currents proved (after more experiments) to be too low for the Dutch solar situation (especially during the autumn and winter). The low trickle charge current exhausted the battery too much. Better values: 80 Ah=500 mA, 40 Ah=250 mA 10 Ah=50 mA. These values protect your wet lead acid battery better during the dark seasons. On page 78-79 pin 2 from the 741 Opamp sets the reference voltage. Experiment with the 6K8 and the 1 K resistor (make them higher) for a better switch-off moment.
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