- Joined Jan 27, 2016
Hi, I have built this simple circuit http://imgur.com/is8HOqd The LED light (tiny 5-7V light) in this circuit should always be on. It is powered by solar panel and battery. During day the solar panel alone can light the led and during night it is powered from battery. Is my solar panel able to charge the battery and not overcharge it? Do I need to use protection circuit? Battery -> two big 3.7V 8000mAh Li-Ion batteries connected in series. I do not need to charge the battery to top capacity from the panel. I am assuming that the panel won't be able to charge the battery above 6V (3V each battery) (this is ok for me). Do you think that it is ok to leave it as it is or is there any danger that batteries will be damaged or will explode?