400 Watt, High Efficiency, Solar Battery Charger/Power Supply

Thread Starter

Lestraveled

Joined May 19, 2014
1,946
......A manual ~10% equalization boost switch would be a nice option for the charger after a full charge is done...........
After taking a moment to look at the schematic, this can easily be done. Use a SPST switch that will connect a 500K resistor in parallel with R11 (392K). The absorption voltage will now be 15.7 volts. Once the current in the absorption mode drops to Imax/10 the charger will go to float mode at about 13.2 volts. Open the switch and the absorption voltage returns to 14.7V and the float voltage stays the same.
 
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