I was down about 15AH when I woke up this morning at 7:00. We had full sun promised for the next week and I needed to charge my laptop. I was doubtful I’d get anywhere near a full charge today, but figured that with the forecast ahead, there was no need to run the engine this morning to give the solar panels a boost.
With the time change, I didn’t start to get much of a charge until well past 8AM. By 11AM, I was down more than 20AH and still wasn’t seeing a positive charge coming in, not even when I turned off the inverter.
I stopped for lunch at 1:00 and was amazing to see that I was now 16.4AH down! In the 20 minutes I took to eat, I saw myself gain a full AH. But that still left me right where I was in the morning.
When I next checked the monitor at 3:00… I got a FULL message! My batteries were charged to maximum capacity!
So it looks like my theory about how the battery monitor works is correct. The amps coming in are only the amps at that moment and every so often, the monitor adds up those amps and adjusts the AH metre up or down as appropriate rather than adjusting the readings in real time.
So the only reading that is truly relevant at any moment is the AH status, and then I can check the amps screen to see if the AH are going to trend up or downwards.
At any rate, full batteries, YAY! Not that I’ve been lacking for power, not by a long shot, but it’s good for the batteries to get a full charge regularly.Share on Facebook