Samsung Z-Flip 4 - 5G - Needs Repair!

Samsung Z-Flip 4 - 5G - Needs Repair! 128GB/ 8GB RAM Dual Sim (Unlocked) phone body and screen in excellent condition). Has been protected by Dexnor Marine Grade Case. The Phone boots up when plugged in to charge so will require repair as possible battery problem? The phone had been working perfectly, charging ok etc, however after purchasing a new phone it was left uncharged for some time and although now showing fully charged the phone shuts down when unplugged? Price reflects the overall condition of the phone and the need for repair it is Non Negotiable! Collection/Viewing by appointment or can be sent by Tracked Postage for €10