Recommendations to replace BlueSky 2000 MPPT
Getting closer to end my charging problems; (long cable run) Easiest is to replace the controller Need one with: Remote battery voltage sense Battery temp sense user defined and easily set ...
Forum Discussion
NinerBikes wrote:
If you lose .47V with existing wire, bump the voltage up correspondingly at the controller to offset the loss, ie program the controller 0.5V higher for bulk charge, and .4V higher for float voltage. Verify at the battery in float voltage what you are getting at the battery terminals with a Digital multimeter, a good one like a Fluke.
I tried that, and do do that occasionally, but as the battery charges and the current increases the voltage drop in the wire decreases also, to the point that the voltage to the battery can sometimes rise to over 15 Volts. It takes watching, which means that the controller has to be pulled from the wall and left dangling by the wires so that I can get to the voltage set pot on the back! Somehow DW gets annoyed when it gets in the way of cooking dinner:R. And that is not a good thing. :E
