The USB charging cable that comes with your device is compatible with any standard USB port. This includes
standard smartphone and tablet chargers, and the USB outlets of your computer and car. Outlets must meet USB
standards and have a voltage level of 5V.
One flash means charging just started and the battery is still empty.
Two flashes mean 25% charged
Three flashes mean 50% charged
Four flashes mean 75% charged
A green light means the battery is fully charged.
A blue light indicates that the temperature is too cold for charging. The lithium-ion battery cannot be charged at
temperatures below 3°C / 37.4°F. Please take your Deeper Sonar to room temperature conditions and resume
charging.
A red light means there is a problem with charging. In this case, first please try a different charger and cable. Next,
please leave the device charging for a longer period (over 1 hour). If the light is still red, please contactSupport.
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