The power for the Bat Camper came from three battery sources. The first was a 7.2V Nickel Cadmium rechargeable that was responsible for supplying energy to low-consumption components, namely the sensors and the E128. The next was a small 11.1V Lithium Polymer* battery that sourced power to the noisy but effective fan motor. Last, but not least, we had a beefy 11.1V, 2200mAh LiPo battery to power the drive motors and the servos (after some voltage regulation).
*After witnessing a different team's LiPo battery burst into flames, we would not recommend using LiPos for projects such as 218. With appropriate care, they are safe to use and offer excellent performance; however, even the most careful engineer can make small mistakes in stressful, late-night situations. Chose forgiving batteries.
*After witnessing a different team's LiPo battery burst into flames, we would not recommend using LiPos for projects such as 218. With appropriate care, they are safe to use and offer excellent performance; however, even the most careful engineer can make small mistakes in stressful, late-night situations. Chose forgiving batteries.