The advantage of a super capacitor over a battery is that it can charge relatively faster as compared to a battery; but the disadvantage is that the super cap discharges also pretty quickly; Also, what about the leakage? Unless these specs are improved, I can't see how the super caps could possibly replace batteries in near future...for mobile phones. Where as the super caps could be ideal for many wearable electronics application where size matters.
It seems to me one potential benefit of super capacitors would be to quickly capture power from a charging system and then free the device to be moved away while the super capacitor trickle charges the battery at whatever rate is best for the battery.
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