1. AC Question's Avatar
    I am doing an agriscience project for my local FFA chapter, and I am going to try charging a samsung galaxy s3 with either a watermelon, carrot, or a lemon. I need to know how many volts I need to generate.
    02-18-2016 06:06 PM
  2. belodion's Avatar
    Five ought to do it.

    Posted via the Android Central App
    02-18-2016 06:11 PM
  3. nahoku's Avatar
    If you own an S3 and it came with a charger, then the charger will have a label on it. Read the label. Typically it's 5v with a stated charging current.

    Even if you're able to generate the 5 volts, it'll be the current capability that determines how long it'll actually take to charge the phone.
    02-18-2016 06:12 PM

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