# Charge

Be sure to regularly charge your headphones to maintain a good performance of generating HUT tokens during workout mode.

Headphones at low battery has a lower HUT generation rate during workout mode:

* Battery percentage 100% - 50%: maintain full HUT generation rate.
* Battery percentage 49% - 10%: HUT generation rate drops linearly from 100% - 10%.
* Batter percentage < 10%: HUT generation rate locks at 10%.

## Battery Consumptions

| Battery consumption                                            |
| -------------------------------------------------------------- |
| x = Endurance                                                  |
| y = Battery consumption (in percentage) for every stamina drop |

\
\&#xNAN;**`IF x≤ 70:`**

$$
y=kx^{m}+b
$$

`where k = 1.2, m = -0.1, b = 0.3`&#x20;

**`IF 70<x<330:`**

$$
y=kx+b
$$

`where k = -0.003786, b = 1.35`&#x20;

**`ELSE`**

$$
y=0.1
$$

## Charge cost ($HUT)

| Level | HUT needed to charge 1% battery |
| ----- | ------------------------------- |
| 1     | 1                               |
| 2     | 1                               |
| 3     | 1                               |
| 4     | 1                               |
| 5     | 1.5                             |
| 6     | 1.5                             |
| 7     | 1.5                             |
| 8     | 1.5                             |
| 9     | 1.5                             |
| 10    | 2                               |
| 11    | 2                               |
| 12    | 2                               |
| 13    | 2                               |
| 14    | 2                               |
| 15    | 2.5                             |


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