As the name says a rechargeable battery adapter for the Virtual Boy, an alternative to batteries.

The only hint at this adapter can be found in issue 73 of Nintendo Power magazine (Page 73, bottom).

 Info:
Title:
Rechargeable Battery Adapter
Manufacturer:
Nintendo Co.Ltd.
Distributor:
Nintendo Co.Ltd.
Versions:
JPN, USA
MSRP:
?
Barcode:
?
Hardware Number:
?
Hardware ID:
?
Nintendo Part Number:
?
Release Date:
Unreleased
Rarity:
-
You are not logged in.
Lost Password?
Register Resend Activation