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RavPower 13400mAh Power Bank with iSmart Technology – SMART, HIGHEST CAPACITY IN CATEGORY EasyAcc 10000mAh Brilliant Ultra Slim Dual USB (2.1A / 1.5A Output) Portable Power Bank External Battery Charger Anker PowerCore 13000mAh Portable Charger with PowerIQ – SMART

TeckNet® Power Bank 10000mAh Fast Portable Charger Battery Pack USB External Battery Power Bank Anker PowerCore 10000mAh Portable Charger

Top 12 Best Ultra High Capacity Portable External Battery Chargers.

A good example of how many times you can charge your device for a 15000mAh battery charger is shown in the image below: The number of charges depend on the capacity, technology behind these power banks as well as the devices you are charging. These high capacity power banks will charge your devices a good few times before needing to charge itself. The bigger the capacity the more juice there is to charge your smartphones or tablets.

The weigh of these power banks also depends on the chosen material for its construction, while most manufacturers op for plastic cases, some go as far as to encase their rechargeable batteries in aluminium alloy casing giving it a more premium feel, weighted when held and robustness. While, higher capacity portable battery chargers, those between 15,000mAh to 20,000mAh weigh around 300 grams to over 500 grams. In our comparison, power banks with capacity between 10,000mAh to 15,000mAh weigh from around 150 grams to 309 grams. While some manufacturers try their best to make it ultra slim or grip friendly, these will ultimately still take up a big foot print. Make no mistake that these high capacity batteries especially those above 15,000mAh are big and heavy. There is a growing need for longer lasting portable external battery charger and the demand is being met by manufacturers with the line-up featured below. We looked at 10 of the best portable power bank, with a range sizes from big and small capacity to ultra high capacity.