I don't plan to use USB to power it.
Yes, I mean charge LED. My goal is to use mkr gsm 1400 only powered by non-rechargeable batteries and will last long about 6 months without changing the batteries.
I am using 3.6V Titus battery in series. Therefore, I have around 7.2 V and I connected them in Vin.
Does this one work? It works for me but I don't plan to use LiPo batteries because it won't last long.
Also 4 AA x 1.5V Alkaline battery doesn't work. I plan to add the mAh capacity by adding the 7.2V in parallel to make it last longer for the batteries.
Do you have any alternative or suggestion? Is the board not meant to be use only for batteries?
Thank you,
RT
battery: titusbattery.com in series