Hi guys. I am looking for a power source for my micromouse. Say it requires 500mah and needs to last about 30mins. Would this do? http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=7565 if i bought 2 cells? It had a 20c discharge rate..
Hi, do you need the battery to be capable of providing 500mA of continous discharge or pulse discharge? I’m assuming you meant to write 500mA instead of 500mAh. It looks like the battery you cited on Hobby King and put out 20*50mA or 1A continous, which is impressive for the size. That battery should last about 50mAh / 500mA = 6 minutes, so five of those batteries might last 30 minutes. The number of batteries needed can also be calculated by taking the 250mAh / battery capacity = 5.
I like these batteries for their capacity but they can’t supply high continous current: