Yamaha FGDP-30 User Manual page 8

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Notes regarding charging
• The product can be used even while the battery is charging.
• If battery power is insufficient or abnormal, the Standby/On lamp (red) will flash.
• The estimated time to fully charge a low battery is 1–3 hours, when the product is turned
off (depending on the usage environment and battery usage).
• To recharge the battery after a full charge, you will need to unplug the USB cable and
then connect it again.
USB power adaptor/USB mobile battery requirements
Output voltage
Output current
CAUTION
Make sure to use a USB power adaptor or USB mobile battery with the specifications indicated
above. Using the wrong adaptors or batteries can result in damage to the product or
overheating. Follow the instructions that come with the connected USB power adaptor or the
USB mobile battery.
NOTICE
• Use a USB mobile battery that has a low-current mode function, etc., and that can supply
power to devices with a current consumption of 25 mA or less. If you cannot charge the
battery with a USB mobile battery, try a USB power adaptor to see if you can charge the
battery from a power outlet.
• If the product turns off suddenly and unexpectedly after it is turned on, your USB power
adaptor or USB mobile battery might not meet the requirements or might be damaged. Try
using another adaptor or battery that meets the requirements, etc. If the product should
appear to be malfunctioning, please consult with Yamaha service personnel.
NOTE
When connected to a computer USB port or a USB power adaptor with less output current
than 1.5 A, the remaining battery power might decrease even while charging (while the red
Standby/On lamp is lit).
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DC 5 V
1.5 A or greater *USB BC specification compatible products
B. USB mobile battery (commercially available)
FGDP-30 User Guide
8