Battery Problem

1. The problem statement, all variables and given/known data

A 4.5 Volt is labeled: 4.5 V ; 1600 mAh (milliamperehour). This battery is the energy source of a chocolate lift. Find the number of kilograms of chocolater you can Transport with this lift up to the summit. The summit is 1000 meter above the valley Station.

2. Relevant equations

The solution is 2.6 kg

3. The attempt at a solution

I assume that my start is correct:

J = C * V

so

J = (1600 mAh / (3600 sec * 1000)) * 4.5 V

isn’t it?

Is the solution 0.002 J then? What did I wrong?
How do I have to go on?

Thanks in advance!

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