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Build-in lithium-battery: 13500mAh/50w Input: DC/13.5V1500mA Output: DC/15V,16V,18V,19V,20V,22V,24V3000mA
Used for the power supply of laptop, and its continual working time is two to three hours.
Optionally, we also can use a SOLAR ADAPTER(XJ-S3C) to charge it up, the charging time is about three hours.
Portable Power Supply for Laptop XJ-S3E