User's Guide

Chapter Three - 28
ManagingPowe
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Note:
 Battery characteristic varies depending on factors such as ambient
temperature, charging method, load current, aging, etc. For example, the
chemicals of the battery are more inactive at low temperature, thus decreases
the output power.
 The battery gauge should only be used as a reference. Please do not expect
it to show the exact amount of the power remaining. There is no memory
effect on Lithium Ion battery cells. However, discharge the battery to nearly
empty every month will help calibrating the internal gauge.