Hello, I’m Nathan, and I’ll be assisting you today. My livelihood depends on your positive feedback, so your satisfaction is my highest priority.
Sorry to hear you’re having trouble.
This is a very old and obsolete model, you are unlikely to find any in usable condition at this point, and the cost of even a used one is likely not a practical investment. I've done an exhaustive search already and there are no parts currently for sale anywhere, other than batteries.
You would be better off starting over with a new DECT6 format system, with better sound quality and wireless range, with a fresh warranty, at about the same price point.
What you'd need for your system is the same model handset KX-TG5832AL which would come with a charger/base already.
I'd recommend a new system at this point: http://www.panasonic.com/au/consumer/household/cordless-phones/phone-with-answering-machine/kx-tgd322alw.html
Best regards, ***** ***** for the news,
Do you need more help with this, Wayne?