According to what I can find out, this model shipped in April 2015 so it's likely it's in warranty. Call them to see what the next step is.
I bought this Panasonic KX-TG4773B Phone that came with 3 extension handsets requiring this special type of RECHARGEABLE batteries: HHR-4DPA. They all worked well. When it indicated that the batteries needed recharging I left them in their recharging cradles overnight, per their instructions, but at the following day...only one handset worked properly. The other 2 are not working at all. They are all black.
I haven't been able to contact Panasonic to question why this, since these are "rechargeable". If anyone has any ideas I would appreciate them a lot! ![]()

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