You must charge the Reader when the battery is low to keep using the Reader.
To fully charge the battery, charge the Reader for at least 3 hours.
If the Reader does not turn on after being charged or you notice a significant deterioration in battery life, contact Customer Service about replacing your Reader, yellow USB cable, and power adapter. Customer Service is available at 1-855-632- 8658 7 Days a Week from 8AM to 8PM Eastern Time; excluding holidays.
Fully charge your Reader before storing it for more than 3 months.

Always use the Abbott provided power adapter and yellow USB cable that came with your Reader to minimize the risk of fire or burns. Take care when plugging and unplugging your USB cable. Do not force or bend the end of the USB cable into the Reader's USB port.
Choose a location for charging where you can easily access the power adapter and quickly disconnect to prevent the potential risk of electrical shock.
The maximum surface temperature of the Reader and/or the power adapter could go as warm as 111°F when it's charging or 117°F during normal use. Under these conditions, do not hold the Reader or the power adapter for five minutes or more. People with disorders of peripheral circulation or sensation should use caution at this temperature.
Do NOT expose the USB cable or power adapter to water or other liquids as this may cause them to not function properly and may lead to risk of fire or burns.

Do NOT use the built-in meter while the Reader is connected to an electrical outlet or a computer due to the potential risk of electrical shock.