how long will a 292 wh power bank last if powering a bubble machine with 88W, 1.1A @ 120V

To determine how long a 292 Wh (watt-hour) power bank will last when powering a bubble machine that uses 88 W, you can use this simple formula:

\[
\text{Time (hours)} = \frac{\text{Battery Capacity (Wh)}}{\text{Power Consumption (W)}}
\]

### Step-by-step calculation:

1. The power bank has a capacity of **292 Wh**.
2. The bubble machine consumes **88 W** of power.

Now, applying the formula:

\[
\text{Time} = \frac{292 \, \text{Wh}}{88 \, \text{W}} = 3.32 \, \text{hours}
\]

### Result:
The 292 Wh power bank will last approximately **3.32 hours** when powering a bubble machine that consumes 88 W.

### Clarification:
The information about 1.1A @ 120V refers to the electrical current and voltage the machine draws, which gives us a power calculation confirmation:
\[
\text{Power} = V \times I = 120 \, \text{V} \times 1.1 \, \text{A} = 132 \, \text{W}
\]
However, you provided that the machine runs on **88 W**, so I assume you're working with that figure, which is lower. If 88 W is indeed accurate, the calculation holds at **3.32 hours**.

Would you like more details or clarifications?

### Related questions:
1. How can I convert different units to calculate power consumption more accurately?
2. What factors could affect the real-life duration of the power bank?
3. How does a power bank's efficiency impact these kinds of calculations?
4. Can I use the same formula for other appliances with different power ratings?
5. What happens if the bubble machine’s actual power consumption fluctuates during use?

### Tip:
When using power banks, always account for the efficiency losses (usually around 85-90%), which can slightly reduce the actual run time.

Find out how long a 292 Wh power bank can run a bubble machine consuming 88W. This guide explains the calculation, using the power consumption formula and verifying with voltage and current data (120V, 1.1A). Suitable for students in Grades 8-10.

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