When i charge it via my laptop and let it on overnight my laptop the next day is still only 1 bar full namely the very first. And if she then used to charge my phone, she goes after the first full charge just completely off.
You should not use a laptop as a charger.
Where do you want the power bank to load otherwise?
On a charger? Where do you charge your mobile phone?
Yes, can be broken. Was with me quite a few times.
The laptop has only one battery itself. You do not charge with a battery another battery. There's never enough capacity. To do this, take a charger.
The charger can only be connected to the laptop
This is nonsense. Then get a USB charger with the right capacity for your power bank. If the power bank is not charging properly, it breaks faster. It is safe that it will not load properly when using a laptop.
How long have you been using this thing? It may change the degree of wear of the battery. In addition, you should first tell how much capacity the thing has at all
The PC USB ports have little power to charge it through the socket with its adapter on
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