AWINNER Replacement USB Charger Adapter Charge Cord Charging Cable for Fitbit Alta Smart Fitness Watch<p> Safe and Reliable: <br> - Realized through CE&GS tested design and components and thermal conductivity silica gel. <br> - Works in conjunction with your tablets battery to automatically stop charging once the battery is full Note <br> 1. Please keep the charger away from children. <br> 2. Neither manipulates directly with wet hands nor places it in a damp environment. <br> 3. Before charging first connect device and then plug in the AC power plug; when finished, first unplug the power cord, then disconnect device. <br> 4. Do not dismantle or repair the charger by yourself. <br> 5. Do not use the charger in flammable gas environment. <br> 6. When the charger appears heat, smoke, burning smell or other abnormalities, unplug the power cord immediately and stop using.<p> <b>Please connect it to the USB port on the computer for charging. If you connect it to the adapter, the current must not exceed 1A.</b>