I set my Perdix up with two independent 4mm bungees, wore it on wrists for a bit
then with the same bungee configuration, lashed it to a Suunto console intertwined
with a slate that I set up with the same bungee, and all that lives on my chest.
Close to a couple of hundred dives later 30ish of which were spent next to a Petrel
also lashed and with the original bungee and it ain't goin nowhere.
well except to do spg orings and to change battery in a tech 2G that's also in there.
Safts have both worked and not worked
I bought a few 18 months ago, the battery with the darker green, a more pronounced slash
and made in France read 3v and did not work in the Perdix.
I found that "originals" seemed to have the faint far less pronounced slash
So I stick with photo lithium from either the gas station or from the battery shop where they are half the price
No way rechargeables for my computers they stink, although I have not tried the current crop of batteries
even though I am very happy with the cheapest Chinese ones in my lights that do not stink
Feel free, but forget the compass working properly intermingled like this