According to at least one review the battery isn't the only thing that can cause a non fire in the electra, getting it wet can also cause problems. In fact it was the only one that didn't fire after getting dunked in the review, the 209's still worked.

BTW, I haven't shot one but one of the guys from work has one and I got to handle it and shoulder it. It looks a bit strange with the magazine looking protrusion in front of the trigger gaurd but it comes up nice and feels good in the hand and ballances well. Wish I could talk him into letting me shoot it just so I could say I have. He was getting pretty good groups using 295 areotips and 100gr of pellets on the first range session, around 3" at 100 yards. Then his scope mount came loose and they started flying all over the place. He has fixed the loose mount but hasn't been back to the range to recheck.