Rechargeable Battery - Renkforce RF-MP3-2000 Bedienungsanleitung

b) Rechargeable battery
• The built-in rechargeable battery cannot be removed and can only
be charged in the device. Never attempt to remove the battery and
charge it with an external charger.
• The battery must be charged using a USB power adapter or a USB
port on your computer. Using another power supply with a different
charging current may damage the device and cause the built-in bat-
tery to overheat, catch fire or explode.
• Charge the battery on a regular basis even if the device is not used
(about every 3 months). Failure to charge the battery regularly may
cause the battery to overdischarge, which can cause permanent
damage.
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