I did go through PayPal so that is one good thing. I already told him don't send me a charger because that would not solve the issue. Except that my charger does fluctuate all over the board from 13 volts to 60 volts. But I was told some chargers are made like that to wake up a battery. The Sonders charger is a steady 54.6 volts and won't charge it. I let them know that. Just the battery staying it has at least two thirds of a charge by pushing the button on the battery. But my LCD screen flashes and shows zero bars on battery indicator flashes like 0 power. Thanks for the help I have a feeling is the battery myself not sure with LCD issue though.I see. It's like a laptop charger where you plug in connector heads. I wanted to understand why your Rattan charger has an adapter.
However, a Sondors charger fits your Rattan battery. That means you have the standard 5.5 mm charger socket. But the Sondors charger doesn't work either.
If the battery won't take a charge, the root cause is not important. You need to demonstrate to the seller that the battery won't charge. I predict that he is going to send you a new charger first, because it's a 5 dollar part, Then after you show it doesn't work, he'll have to cough up a battery,