I’m currently looking to power the Electron for a project that I am doing via a solar panel and a MPPT Solar charger. Ideally, I’d like it to be able to run off of a battery for 8 days in case of extended cloud cover. For this, I calculated that I’d need at least an 11,000 mAh battery. I found this battery (connected to the MPPT) which I would use with the LiPro battery given in the Electron kit connected to the Electron directly (to have 12,000 mAh) but realized that it is only 3.7v and the VIN pin minimum is 3.9v.
I assume a battery like the one I linked would not work then. Does anyone else have any recommendations for a rechargeable battery pack that’s around 10,000 mAh or greater?