Hello All, Im wondering if Someone could help me with a science experiment I'm doing with my son. He's doing a new twist on the classic Lemon battery experiment. He's trying to see if we can figure out how many Lemons it would take to charge an iPad. Everything I can find says it would take 5.1 volts and 10 watts to charge. Heres my problem. We are finding that adding lemons to a circuit in series will boost the voltage by about .9 volts per lemon. giving us enough voltage after 6 lemons. but we only get .2mA of current no matter how many we add. In Parallel, I can add an extra .2 mA in current but the volts remain at .9v no matter how many lemons we add in parallel. My question is, Is there a scenario, or some kind of series/parallel way of wiring that would eventually allow us to achieve enough Voltage and Current to power the iPad. Thanks in advance for any help!!