DVD DCP750

The rechargeable battery inside the unit is made by a company called Yuku out of Quongdong, China. It is a 3.7V double layer battery with (3) soldered connections. I have not found a replacement yet, but am still looking.
Even though the unit is new, it does not mean the battery has not gone beyond its expiration date, for chargability. Hence new unit, old battery.

Miccey.