Having written thousands of reviews I assure you anker is not to be trusted. That 18 month warranty is about as much life as you can expect prior to failure of any anker device.
As yourself if your money is worth 18 month "rental" of value
Anker has launched a new accessory, the Nano Smart Shield Magnetic Power Bank. Currently only available in China, this device is said to offer a range of safety features, including temperature monitoring and the use of flame-retardant materials. It can be used to charge two devices simultaneously, with charging data shown on the integrated display.
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