Link to mine, also with no tailcap spring. It does fit and work just fine with flat top, unprotected cells such as the Samsung 50E and 40T.
I still have no resolution with mine, still no response from Neal after 9 weeks.
Fireflies contacted me but now giving me the run around, also lied on three occasions where they said they would mail a replacement unit to me. Nothing has arrived, no shipping notification, no response to my communication with them.
I have been treated appallingly by both parties and will no longer do business with them and I highly recommend no-one do business with them until they honour basic customer service practice.
