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I have a question about Electric Currents & Resistance. The question is: "A battery is rated at 12 V and 160

A-h. How much energy does the battery store?"

I first converted 160 A-h into 0.044 A/s. I plugged that into P = I*V, and got 0.528 W. I plugged that value for Power into U (energy) = Power * Δt. So, U= 0.528 * 3600s--> U = 1900 J. This was incorrect. The correct answer was actually 6.9 million J (6.9 MJ). I don't understand where I went wrong. Please explain what I did wrong.

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