A:Answerif you connect it to your phone and then press the button to turn the unit on and no lights turn on, then the unit is dead and needs to be charged.
If you are charging the unit itself , the lights will slowly blink and then remain lit once its fully charged up. they wont blink anymore.
A:AnswerThat's weird because all I have is an IPhone and it charges it fine. I have charged multiple iphones with it. It will charge an iPhone 2-3 times.
A:AnswerI would say yes that is a defect, if it is not within the 14 days since you bought from bestbuy then go to the manufacturer and address it to them.
A:AnswerThe cable that comes with the battery is Micro-USB, so if you want to use it with the Nexus 6P (USB Type-C cable), you will need to connect your own charging cable to the battery.
A:AnswerIt will work as a power source for your drained bluetooth speakers. Check the power consumption of your speakers. You can roughly gen an idea of how long (in hours) it will last by dividing 5.2 ampere by speakers' power consumption.