My answer to Can we charge laptops via USB with a power bank?

Answer by Allen He:

Is There A Power Bank For Laptop? Many people will ask this question. We usually use power bank to charger our smartphone ,tablet , Go-pro or other smart devices. But we seldom or never see people use power bank to charger laptop. So the question is "Can we charge laptops via USB with a power bank?

Yes, The answer is positive. The power bank capable to charge a laptop needs to supply not only the USB standard charging port but also (or only) a DC output port, or a build-in power inverter with an AC outlet.

Let me show you a video first:

Charging your laptop from a USB power bank – #0101

https://www.youtube.com/watch?v=AP-XvA7ftBQ

Here i got some power bank that can charge laptop: Power Bank For Laptop

Anker® Astro Pro2 Multi-Voltage Portable Charger – 20000mAh

Multi-Voltage 5V 12V 16V 19V for iPad Air, Mini, iPhone, Samsung Galaxy, Note, HP, Dell, Acer, Asus, Toshiba Netbooks

https://www.anker.com/products/7…

RAVPower® Xtreme 3-Port Portable External Battery Charger with Multi-Voltage 23000mAh

Multi-Voltage 9V/12V/16V/19V/20V – for Apple Macbook, UltraBook, Digital Cameras, Surface Tablets,Asus Tablets and more

http://www.ravpower.com/ravpower…

Poweradd™ Pilot Pro Monster Capacity Multi-Voltage Portable Charger – 32000mAh

Multi-Voltage 5V 9V 12V 16V 19V 20V for Tablet PC, Netbooks, Notebooks, Laptops, Smart Phones

http://www.ipoweradd.com/powerad…

BiXPower 153 Wh (42500mAh) Super High Capacity 12V & 19V External Rechargeable Battery Pack – BiXPower BP160

Made with high quality Panasonic Li-ion battery cells. Compact size can easily fit into a laptop/notebook carry bag

http://www.bixpower.com/Bat-BP16…

Energizer XP18000AB Universal Power Adapter with External Battery for Tablets/Laptops/Netbooks/Smartphones

Energizer XP18000AB Universal Power Adapter with External Battery for Tablets/Laptops/Netbooks/Smartphones

http://global.energizerpowerpack…

Qi-Infinity™ Powergrid External Battery Pack/High Capacity Power Bank charger – 34200mAh

For Laptops, Notebooks, Netbooks, Tablets and Smart Phones

http://www.qi-infinity.com/produ…

Lizone® Extra Pro Super Capacity Portable External Battery Charger 40000mAh

For Apple Books, HP, IBM Lenovo, Tablets, Smartphones and more

Intocircuit® Power Castle PC26000 External Battery Pack/High Capacity Power Bank charger – 26000mAh

12 Connectors for Laptops, 10 Connectors for Phones and Tablets, AC Adapter Included

http://www.hisgadget.com/product…

There are power banks available with various plug in connectors for laptops, but they cost around 15,000. I have seen one on ebay india, and the ad says that they’ve even sold 29 units. These are not marketed by laptop manufacturers so I am not sure what your laptop warranty status will be if you purchase one of these banks and use it charge your laptop. Most laptops charges through its adapter only. Powerbanks on the other hand have only usb 2 output interface. Replacing laptop batteries with Extra cell batteries available in the market can help. One desi jugaad is using a UPS to charge a lappy but it wont make it handy and portable.

Can we charge laptops via USB with a power bank?

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