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Anything that keeps the pins at the nose of the Cobalt damp, or shorts them out (as leaving the power adapter inserted could) can prevent it from going into sleep mode. While the display will turn off after 5 minutes, the Cobalt will be in a "standby" mode which consumes much more power than...

It should be downloadable from this link, under Step 1- under the Windows for Cobalt 1 section. https://www.atomicaquatics.com/downloads-cobalt-firmware/ Cobalt_162_User.hex is the file name.

You're right- the description is now wrong, the table is correct, and 10mm will be too thick. The original battery is only about 7.5 mm thick. We will look for a readily available alternative. In the meantime, if you need a battery message me here and I'll get one to you. Ron

It looks as if the link may have broken or been changed. Here is a description to search for: EDIT- We're revising this reference to another battery available from Amazon that does fit into the Cobalt's case. If you can soldier on the connector that comes with the original Cobalt battery this...

I'll send you a message, that should get around the limitation. The time to empty is based on current draw at the moment, not in sleep mode. We can't show sleep mode current as when the Cobalt is in sleep we can't run anything to measure it. To accurately measure sleep mode current we need to...

We can easily replace batteries if you want. Just message me here. Or we will offer any support needed if you want to do what is described above and replace it yourself. We have checked out the battery listed from Amazon and it's a near identical replacement for the original- close enough that...

If the A/C side works on the old adapter that should reboot the Cobalt from a dead battery. Let me know if you need any more information. Ron

Probably the adapter is damaged on the A/C side, this is electrically independent from the USB side. Impact or force can lift the connector off of the PCB. If the battery is dead the Cobalt 1 won't restart just from a USB connection. But probably you can restart it by connecting USB to a...

If it has not flooded (do you see moisture or condensation behind the lens?) then most likely it can be brought back up. I assume you have tried removing and re-installing the battery? It's hard to say without seeing the Cobalt, though. I'll message you with suggestions about getting the...

Good to hear. Some of the early Cobalts had a sealing mechanism on the magnets that was less than ideal. Sounds like you had some of those. The later production had magnets that are fully encapsulated and don't seem to have any problems at all. It's good that your reed switches are still working...

Here is a link to instructions on removing the cover. Hopefully replacing magnets will fix the problem. https://www.dropbox.com/s/6pty2kwmw9l9u2k/Cover%20removal.pdf?dl=0 If newer, stronger magnets don't fix the issue, it may be the reed switches on the main PCB, in which case they need to be...

Thanks- hopefully we will be able to come out with a computer that you like even better before too long. For now, there isn't much in the Cobalt that can't be repaired. We started this forum to support Cobalt users, happy to offer any help that is within our ability. Ron

The link to a battery replacement is in post #4 above. It does require soldering the Cobalt's battery connector onto the leads from the replacement battery. Instructions for removing the battery cover are posted in other threads, but here is the link: BatteryReplace.pdf If you suspect other...

It's sure sounding as if the UP reed switch is not working. Most divers can live without that switch- the only thing it does during a dive is to manually initiate a gas switch. But you have to use the Down button a lot more to scroll through menus and options. Or we can fix it. I will send you a...

I seriously doubt any problems with the magnets, based on this being an unused unit and that using the other magnets doesn't change anything. The red magnets are slightly less strong than the black magnets. But if none work... It's possible that the reed switch is stuck. That is an easy fix, but...

My suggestion would be to pop off the lid to expose the keypad and try it, or one of the other magnets in the keypad. If it's never been used it's very unlikely the magnets have become corroded. Sometimes the keypads can become stuck down, this might be the case if it's been sitting for a long...

There may be- the issue had always been the fact that we included a built in thermistor that has to be connected for the Cobalt to recognize the battery. A customer pointed out this battery to us- it has the same thermistor we use in the Cobalt and easily fits in the Cobalt case. We have tested...

In case anyone comes searching for Cobalt information and finds this, we have a forum set up on ScubaBoard specifically for supporting Cobalt computers. Many of these type of questions are answered: https://scubaboard.com/community/forums/ocean-concepts.1144/ Ron

We released a firmware version (starting with version 2.5 released I think in 2020) that allows Cobalt 2 users to disable those alarms (some alerts were always user controllable in Dive Settings). In Dive Settings there is an option for Global Audio ON or OFF- this can make the Cobalt entirely...

I've sent you a Message with information. Thanks for the positive feedback- we really worked to make the Cobalt interface easy for users. I'll note that we set up a forum space here on ScubaBoard specifically for supporting the Computers we designed...