I have a Bluetti EB150 in my van. I have it set with a voltage sensing relay powering a small inverter. I then have the AC adapter plugged into the inverter, so when my van is running and the alternator is charging enough it turns on the ac adapter and charges the EB150. This works flawlessly when I am driving, but if I am parked for a bit I struggle to keep the battery charged enough.
I want to add a 100-watt panel to the roof (all the space I have) and have it connected so it charges the battery whenever there is sun, but I want to also have it charge when driving. I was thinking a Y-connector might cause issues with "backfeeding" as the AC adapter would be putting a lot more power out than the solar panels. Also when the car is off, would the solar panel backfeed into the ac powered charger? I have a basic knowledge of electrical, so I was thinking I might need diodes to stop the backfeeding.
Has anyone else done this? Did it work with just a "Y" or needed to do more?
I want to add a 100-watt panel to the roof (all the space I have) and have it connected so it charges the battery whenever there is sun, but I want to also have it charge when driving. I was thinking a Y-connector might cause issues with "backfeeding" as the AC adapter would be putting a lot more power out than the solar panels. Also when the car is off, would the solar panel backfeed into the ac powered charger? I have a basic knowledge of electrical, so I was thinking I might need diodes to stop the backfeeding.
Has anyone else done this? Did it work with just a "Y" or needed to do more?