I crimped my ones and i ended up with a battery cap that looks like a hexigon
Fortunately there is so much slap in the threads it still screws in no problem.
No problems with rebooting on the dive since moving over to the silver grease and the crimped threads but yesterday i did a dive on a fresh battery 55m run time 125min. After the dive the hand sets appeared to shut down OK (thanks to the big wadge of silicone in the sensors.
After washing the unit that night and removing the head it fired up and immediately started going into crash reboot mode
Either the battery is shagged in one dive or it lost contact some were.
Try as i might i couldn't get the unit to "switch off solenoid" mode. It just wouldn't stay awake long enough.
The soft ware MUST be improved to shut off the unit and keep it shut off when the voltage drops to X point. Flying the unit out on the second hand set is no problem at all but the master reboot and 02 inject is a BIG problem.
ATB
Mark Chase