slipstick:
That's interesting. Exactly what damage did it cause to the cables that made them charge slower?
I don't know exactly what damage but whatever it was it did not show anything in external appearance. I sacrificed quite a few cables (including an oem lightning cable) to figure out what actually caused this problem with my cables since I also used the same cables to plug into the wall charger. Eventually I noticed only those cables that were also used with that powerbank ended up faulty. At that time I never bothered to check whether the cables got hot. I bought the powerbank from a small cellphone shop in Dubai.