Data Sheet

1. Lithium Battery Full
2. Solar Panel voltage outside of range (most likely due to insufficient solar power).
In the second case, re-position your solar panel to accept more sunlight if possible. None of the above
conditions will prevent the Lipo Rider from providing a steady 5V supply to the USB, unless the battery is flat.
Solar Panel Equations
Solar Panel Output Power = Output current × Supply Voltage
e.g. 1W = Iout× 5V
Iout = 200mA
Therefore, charging for 1 hour will give 200mAh, ignoring losses. For a 1000mAH battery, charging from empty
to full will take approximately 5 hours under ideal conditions.
Lithium Battery
The name Lipo Rider suggest that a Lithium Polymer to be used. However, the chemistry of a lithium polymer
and a lithium ion battery is sufficient similar for the two battery types to be interchangeably used. In case more
than one battery is to be used, connect them in parallel instead of in series, as the charger IC supplies 4.2V.
Slide switch
The slide switch controls the source of the USB 5V power. ON – Charge enabled from lithium battery and/or
solar OFF – Charge disabled from lithium battery and/or solar
Source USB Port
The source USB port is a micro-USB port which is used as a normal USB port. The source USB port can be
used to charge the lithium battery or connected to destination device via the destination USB port.
Destination USB port
The destination USB port is where the destination device is to be connected. Power to the destination device
will be supplied by the Lipo Rider board. The supply will be either from solar panel, lithium battery or source
USB port.
Power Flow Dierctions under Different connection scenarios
Due to the huge number of combinations, I have only included only the main scenarios:
Standalone Mode
Solar Power charges lithium battery