How to charge smartphone batteries?

[Sushubh]

popcord™: unforgettable keyring charger - iPhone & micro usb by Powergoat — Kickstarter

So... I was reading this kickstarter and I was surprised to see this graphic...



I am confused. I avoid charging my phone when it is above 30% battery levels.

 

[manu1991]

AFAIK, it is bad to let the battery go down to very low levels everytime.

 

[Sushubh]

According to them, you should charge your phone whenever you get a chance. More of a topup. (using their cable preferably lol)

 

[manu1991]

They should have paired a small power bank like this alongside as well, would have been more useful: http://www.aliexpress.com/item/2600mAh-USB-External-Battery-Portable-Charger-Power-Bank-Charger-Emergency-Battery-Charger-For-Mobile-Phone-Free/1478616006.html

 

[Sushubh]

Still. What are they trying to raise money for? A small portable USB-microUSB/Lightening cable?

 

[manu1991]

looks like.

 

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[Sushubh]

lol. cool invention indeed.