Laptop Batteries Fairywill
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 | Pass Through Charging: Support charge and discharge at the same time. The function is activated by pressing the button for 2 seconds while the power bank is charging itself. Emergency Battery Backup for Outdoors: Size 7.6'' x 5.9'' x 1.1'' and weight 2.55lb. You can easily put it in your briefcase backpack or carrying bag when you're on the go. It keeps your devices powered for emergency. High Capacity: This 50000mAh(3.7V)/185Wh battery provides enough juice to power a 65W laptop about 2.5 times |  |