Making a battery pack for the DA-P1 (or most recorders, for that matter) is pretty easy. I'm all thumbs, and I've done it in the past. Try searching the Remote Power forums (one in the Technical Help section, the other in the TS Knowledgebase section) for keywords like: DAP1 or DA-P1, DAP1 pinout, DAP1 SLA, DAP1 DIY. If you have trouble finding threads that help, let me know and I'll try to post again in the next few days with some threads that may help.