Hi, I was wondering if I can use a different battery other than a Li-Poly battery for the Arduino Funnel(Fio)? I am trying to power an Arduino with a lead-acid battery which is being recharged by a solar panel. My concern is my ability to safely charge a large Li-Poly battery with a solar panel over a time span of years. From what I understand, Li-Poly batteries can be fairly volatile without the proper circuitry, and I’m concerned that in my application, the battery would explode and be a safety hazard. Can a different battery be used? And if so, how does that affect the operation of the Fio?