Hi!
I'm trying to make a battery pack for a 5v screen with a peak current og 8A and a average powerconsumption of about 2-300mA. The system is also going to be powered from a 150W solar panel with 22V out max @ 8A.
My plan was to use 8 18650 cells. 2 in parallel and 4 in series. the cells are unprotected.
Does anyone have some good reccomendations to get started at this? I know they have to be over and under current and voltage protected. I guess also that they have to be balance charged.
Do you know of any boards to use in this application? The form-factor has to be as small as possible, as the battery back is going to be mounted in a square tube, and the powersupply can be either inside the tube, or flat behind the screen. Is there a CE compliant multipurpose, Charging, MPPT regulator, buck conterter unit for this?
Sorry for my rusty english spelling!
-Simon