Just seen this on an Ebay item description for a portable battery bank, you know that you use to keep your phone battery topped up. The rating in the ad is 500,000mAH! Ad is at
https://www.ebay.co.uk/itm/New-Power....c100005.m1851Problems You May Encounter
-Question: Why haven't I received the package yet?
-Answer: There may be the following situations, please try one by one:
(1) Parcels for international shipments may be delayed, you can use the tracking number to contact the logistics company or the local post office.
(2) If it is inconvenience for you to collect the package in time, please contact the courier and ask for the location of your parcel.
If you don’t mind, you can also contact us and we will help you solve the problem.
-Question: Why does Power Bank have no print capacity(mAh)?
-Answer: If we printing capacity, the product can not be allowed to transport by the plane, we hope you can understand this.