So let's get this straight. You had a Mk1 trolley where the battery started to fail after about 3 years so you bought a Mk 2 trolley instead of upgrading/replacing the battery. The battery on the new trolley started to fail after 1y and 6 weeks so you got a replacement battery from GC FOC. Then, because of "user error" you broke the trolley and bought an inferior product instead. One phone call to GC would have got you a replacement connector, probably FOC.
What planet are you on Homie??
"Would definitely go back to GK and keep looking at their site"
Why???? You've bought a "carp" alternative. Or do you just like reading the humour in their sales pitch?