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Thanks!According to Scuba Gaskets O-rings for Suunto C8-D4i-D4i novo-D4 & Oceanic OCS-OCI you are correct. (39 X 1.5mm)
Dive computer battery and o-ring spec's
I don't know if this qualifies as "repair", but, instead of paying upwards of 10 bucks for a kit, we can buy most batteries for less than a buck, if we knew the type, plus an o-ring once in a while, if we knew the size. So I go first: Aladin Pro, 1st generation, with no oil: LS14500...scubaboard.com
Thank you.@couv The right Oring size for AL i450T is 1,5mm x 40mm, the same size as for Oceanic OCi and OCS. Suunto D4 & D4i Oring size, on the other hand, is indeed 1,5mm x 39mm. Scuba Gaskets has it wrong.