I seem to be writing "how to" posts lately . . . . What follows may be of use to any other folk who need an Aladin Pro battery replacement.
DISCLAIMER: I'm not necessarily recommending doing this (as I think the manufacturer frowns on it, on the grounds of making sure the computer works correctly afterwards) but I've heard it said it's OK if the computer is checked against another one on dives after the battery change. I can't vouch for this fact, so what follows is purely for interest.
I've had quotes between £100 and £130 for a battery replacement for the Aladin Pro nitrox dive computer. I'd have to post it to a dive shop who would then post it to Scubapro who would then post it back to the dive shop who would then post it back to me. They typically quoted 2 weeks turnaround.
The actual battery costs just a few quid (Saft battery, part number
LST145003PFRP) and is available from RS; their part number
778-1150). It's important that the correct part number is used so the solder tabs are in the right position. There are video guides on You Tube on how to change the battery and then reset the computer, such as:
. Perhaps the best video guide is a 3 part one, not in English but easy to follow, starting with part 1:
The job looks a bit fiddly and messy (which is why I suspect it costs so much for dive shops to do it) but you only need a few basic tools including a soldering iron, a 3 V button cell (to reset the computer) and enough liquid paraffin to refill the computer whilst completely submerged, before reassembly.
You can buy a second hand Aladin Pro nitrox computer with almost full battery capacity online for less than the quoted price of Scubapro replacing the battery in yours. So there seems to be little to lose by doing it as a DIY job.
I'm still mulling this over and may have a go. If so, I'll post again here and let folk know how I got on.
It's also worth mentioning that the RS replacement battery part number 593-489 quoted above for the
older style Aladin (the one with a separate [air-filled] battery chamber sealed with a threaded disc) is now wrong. RS have discontinued this particular battery but they offer an alternative, which is part number
183-5705. If you type "593-489" into the search bar on RS Components' website, it's explained there.