I finally found a replacement battery for my recorder, by the look of things the battery is quite standard, that is the battery for the DM4 seems to be the same for the dM7.
The below link is to the battery and charger on eBay in Australi but at least its a reference so people will know what to look for. > http://www.ebay.com.au/itm/171174444447?_trksid=p2060353.m2749.l2649&ssPageName=STRK:MEBIDX:IT > > <http://www.ebay.com.au/itm/171174444447?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT> ********** Those of a positive and enquiring frame of mind will leave the rest of the halfwits in this world behind.