> That sounds like a battery to me. Not when the public thinks a battery is something you can buy for a reasonable price. This reminds me of the solar panel bu

> That sounds like a battery to me. Not when the public thinks a battery is something you can buy for a reasonable price. This reminds me of the solar panel business, where the driving market issue is not cell efficiency, it's cell cost per watt. A panel that produces more watts per dollar will usually beat a panel that's more efficient at capturing the sun's energy.