tired of having my zoom h4n eat up AA batteries with p+48v on, i decided to turn to a larger source, namely the V mount batteries that run my scarlet. i made up a small box with a voltage regulator. i used my power tap cable from small hd for the in side and got a small plug for the zoom. also doing a version of it with a larger regulator. it could also be done off a 6v lantern battery. it was just a fun and pretty inexpensive project, but i can make them for others if requested.