Dyson DC44 Vacuum Cleaner (battery issue)

Selling an old Dyson. Dc44. It works but shuts off after one-two minutes of continuous operation. If you vacuum for 10-20 seconds, it works longer. They say the problem is the battery. I bought a battery assembly kit on Ali and it was my mistake, I never found time to assemble it. A very powerful vacuum cleaner, like all Dysons, convenient for vacuuming the car and crumbs after a robot. You can assemble the battery, everything for it is in the kit. Or buy a new one for 30-40€ on Ali. Selling for 30€ in Limassol.