can anyone tell me what this charger is for? ego vs firefly connection?

[solardrgn]

a seller from the classifieds gave these to me as part of a lot i purchased. it says 808 but my volt does not screw in and my firefly does not seem to reach the threading. thanks

 

[Foxfur]

Not 808? Huh. Sure seems to be a sturdy unit.

 

[c.chalie]

Google the info on the sticker and see what pops up