
robo rad
Just wondering, I was thinking about using the Roomba 650 battery power to power up the EZB tiny and I heard the power can go from 15 to 22 volts.So I know it works with the larger EZBv4,already tried that successfully.I now want to add my Terminator skull that uses automotive 12 volt light bulbs for the red eyes.The theory is that bulbs can act like resistors. So a 24 volt supply can run 2 12 volt bulbs just the same as 1 bulb on 12 volt supply.Question is : will using the 2 12 volt eye bulbs and Ez Tiny at the same time be too much resistance for Roomba battery? (15-22v)(&i suck at electronic math)
2) The amperage of the battery is what you care about, and how many amps your accessories are drawing. It's simple math by adding all of the amps together and dividing by the battery's amperage. That will tell you how many hours you will get. I don't think you'll get very much out of the roomba battery. You can buy 4.5amp roomba batteries on amazon, but i doubt they're 4.5 amps, guessing 4 amps. So if you're drawing 2 amps of steady current, and the battery is 4 amps, your battery will last 2 hours (not taking account for battery degradation)
add a second iRobot roomba battery in parallel with the installed one. That’ll double amperage. You don’t get more volts, but you do get more amps
long as the second battery is connected in parallel with the internal battery, they’ll charge together
you can hook up your volt meter in series on amperage setting to check the current draw