as above, anyone tried making mods with a 510/ego adapter as the battery connector?

my 3.7v box mod won't fire using the adapter(as a battery connector) above. when i tried connecting the +ve and -ve wires to an led, bulli atty, ego-t atty - it works fine.
i've also made sure that i've got the positive and negative correctly.
anyone who has successfully made a mod with a 510/ego adapter(as a batt connector) please come in and school me. i know its possible because shan has made one before.
any advice greatly appreciated!

my 3.7v box mod won't fire using the adapter(as a battery connector) above. when i tried connecting the +ve and -ve wires to an led, bulli atty, ego-t atty - it works fine.
i've also made sure that i've got the positive and negative correctly.
anyone who has successfully made a mod with a 510/ego adapter(as a batt connector) please come in and school me. i know its possible because shan has made one before.
any advice greatly appreciated!