I've set myself up some backpack panels + a separate usb batter Generally I've found that batteries will let you charge xor discharge, and won't let you do bot

I've set myself up some backpack panels + a separate usb batter Generally I've found that batteries will let you charge xor discharge, and won't let you do both. I assume that you'd get unexpected voltage/amperage on the discharging side, from the charging side if you tried to do both at the same time