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docs/power.md

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+# Power(save)
+This extention allows you to save power and is targeted to bluetooth/battery based keyboards.
+
+## Keycodes
+|Key                    |Description              |
+|-----------------------|-------------------------|
+|`KC.PS_TOG `           |Toggles powersave on/off |
+|`KC.PS_ON `            |Turns powersave on       |
+|`KC.PS_OFF `           |Turns powersave off      |
+
+# Enabling the extention
+To turn on basic power saving, this is all that is required.
+```python
+from kmk.extensions.power import Power
+
+power = Power()
+
+keyboard.extensions.append(power)
+
+```
+
+## Optional extra power saving
+On supported boards, such as the nice!nano, power can be cut on VCC saving extra power if OLEDS or RGBs are installed.
+These drain power even when off, so this will prevent them from doing it. 
+
+```python
+from kmk.extensions.power import Power
+
+# Your kb.py may already have this set. If not, add it like this
+# import board
+# keyboard.powersave_pin = board.P0_13
+power = Power(powersave_pin=keyboard.powersave_pin)
+
+keyboard.extensions.append(power)
+
+```
+
+Make sure that the pin is correct for your microcontroller. The example is for the nice!nano. Not all microcontrollers
+have this feature and this can be omitted if not and there will simply be less power saving.