i got the littlebox mainly for home recording, don't do much remote. i liked it mainly because it was small. it supposedly will get 2 hours with p48, which is still good if i do a remote session, but for home recording i might want to do an all day session.
what i think is the best thing is to get an alternate sled, and either make or buy a dummy battery and have a female dc connector mounted to the new sled. i don't want to disfigure the current sled in case i destroy it. most cheapo dc wall warts do not have din connectors on them as far as i know.