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A must-have item for outdoor camping! A must-have item for camping is a power bank calculator.
Easily calculate how much home appliances you can use with your power bank. You can calculate power bank / auxiliary battery with one app.

2023.04.01
We are currently remodeling all of the inside of the app.

2023.09.03
Fixed minor bugs.

the second update
1. Support in dark mode
2. Application manual support

update content
1. Fixed the application to close when pressing the Back button twice
2. mAh implementation (Number of times a smartphone is charged with a mAh power bank)
3. Change the top bar color
4. New fixed
5. Changed the input unit on the Lithium Ion Iron Phosphate page