User manual

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the battery level percentage as it charges to 100%. It takes approximately 90 minutes to fully charge the bat-
tery.
If you use an AC adapter, make sure that the adapter is marked with "output 5Vdc 0.5A - 2A max". Only use
an AC adapter which is adequately safety approved (marked with "LPS", "Limited Power Supply" or "UL lis-
ted").
You Polar Loop 2 notifies you when the battery charging level goes low. For more information about low bat-
tery notifications, see Display messages.