A sealed 12V rechargeable battery pack for the Maycom AH27, Midland 42, and RadioShack handhelds.
Because this pack is a full 12V, it allows your radio to give a full 4W output. If you used nicads in the normal empty battery case, you will only have 9.6V (8 x 1.2v) and consequently the output from your radio will be lower.
Made to fit the Maycom AH27 and RadioShack handhelds, but will also work on the Midland Alan 42 but does not lock on (fittings are slightly different).