Unlike the DiMAGE 7-series cameras which use four AA batteries or an external battery pack connection, the DiMAGE A1 uses a newly introduced battery cell designated Minolta NP-400. A key feature of it is a long battery life. (The NP-400 is also used with the final Konica Minolta DSLRs, the Dynax 7D/5D).
This was the final Minolta-badged bridge camera product before the Konica Minolta merger. The DiMAGE A1 was succeeded by the DiMAGE A2 in March 2004 (as the first Konica Minolta-badged product), with an 8-megapixel CCD sensor.