Adding a second 100Ah battery and having a 200W solar suitcase is what I'd suggest. With your current setup, you'll get about two day without sun. It's not unusual to get a few overcast days in a row… (View Post)
Doing this would be the same as wiring two lithium batteries in parallel. One would only charge the other to the point that they both would eventually balanced to the same state of charge. Generally … (View Post)