Recharging the Robot Batteries
===============================

LiPo Battery Guide (adapted from [trossen]_)
---------------------------------------------

Before you use or charge any lithium battery you must read the `Lithium Battery Saftety Instructions and Warnings <http://trossenrobotics.com/shared/productdocs/lipoWarningGuide.pdf>`_ document.

Do not charge or use batteries if the battery ...

- is punctured or damaged
- is bloated, expanded, swelling or otherwise deformed
- **Do not charge batteries unattended**. Monitor batteries during charging for popping, hissing, smoke, sparks or fire. Also monitor the battery for any swelling or other deformities. Disconnect the battery from your charger immediately.
- Do not charge batteries near flammable material.
- Do not charge batteries while they are in your robot.


.. [trossen]
   https://learn.trossenrobotics.com/index.php/getting-started-with-the-arbotix/11-lipo-battery-guide


How to recharge the TurtleBot3 batteries
---------------------------------------------

- Follow the instructions on `this video <https://youtu.be/AjLCuMORQIM?t=58>`_

- Unplug the red connector

.. image:: img/tbot3_redunplug.jpg
  :width: 600
  :alt: Alternative text

- Plug the white connector to the blue charger

.. image:: img/tbot3_conn.jpg
  :width: 600
  :alt: Alternative text

- Unplug when the battery is charged (LED is green)

.. image:: img/tbot3_disconn.jpg
  :width: 600
  :alt: Alternative text


- Do not charge the battery while still connected to the robot: the red connector must be unplugged!
- Do not leave the batteries charging unattended.
- Follow the LiPo Battery guidelines