Anker PowerCore 20100 - 20000mAh Ultra High Capacity Power Bank with Powerful 4.8A Output, PowerIQ Technology for iPhone 7/6s/SE, iPad and Samsung Galaxy S8/S7 and More (Black)

Product Information

Output which in English terms means I get around 8 charges to my Sony Xperia phone and I would guess the same for an iPhone or around 4 charges for a mini Ipad. Your battery bank will not overcharge so you can actually leave it plugged in until it is fully charged without issues.

There’s 4 blue lights that indicate how much juice is left in the Anker Powecore, 4 lights being fully charged down to 1 meaning nearly empty.I don’t tend to kill time with the iPhone, I’m not a Facebook user and tend to limit my social media usage, but I still struggle to maintain battery life.

Read more about the condition New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging is applicable). I’m worrying now as I’ve left it too late and I’m going away Tuesday and needed this powerbank for the trip I’ve tried different cables too. For this they do not need to do a reset, but use an appropriate charger that had sufficient power output to properly charge this pack. They are adaptive chargers and revert to slower charging protocols when charging other devices that is not a phone. Did so until it depleted, than a problem described above occured - only second time I’m trying to charge it up, goes well 'till 3rd LED, but the 4th just keeps flashing.As to flashing last light, the battery will slowly trickle charge itself in the last few % so the last light takes roughly double the time of the other earlier lights to go out, as others have said when you have flashing lights it is charging, then solid lights to indicate fully charge then lights off. There is no blue lights on whilst my device is plugged in either, which on all my other power banks has the blue lights on whilst charging. With 20,100mAh of battery inside, a fully charged Anker PowerCore 20100 will be able to charge up an iPhone X around seven times before it needs to be charged up again itself. Surge protection, short circuit protection, and more advanced safety features keep you and your devices safe.