battery error

[Tjotte]

Hi OSTC team, i had a very strange thing happen to my OSTC3 last weekend, i did 3 dives in total, 2 on saturday and 1 on sunday, i don't remember exactly my battery charge before saturday dives but i did notice it was at 81% after these 2 dives.
The sunday dive went as it should and the computer worked fine, keeping an eye on the computer through out the entire ascent to surface was also fine, however, approxamently 15min after dive i was going to check the logs and the computer did not turn on, and no blink from battery indicator tried removing and reinstalling the same battery and still nothing ( battery was a sunmatic lithium 1.5V) so i went to get my spare SAFT 3.6V (same as the one computer ships with) and this worked and nothing seemed off with the device exept for that i had not logged my last dive. Any idea why this would happen? latest logg says battery was at 1.407V charge.

sry for the long story, hope this can be figured out. If there's anything i can do to help research this please ask! I'm no computer guru but with instructions on how to pull loggs or other info I'll do my best.

best regards, Tommy, OSTC3 #2432

[chood98]

I had a similar problem last weekend I had 50% left on the battery (3.6v saft) at the beginning of the dive but 20 minutes in my ostc3 turned off and would not turn back on at all. I changed the battery and it then turned on but did not store any of the dive. I have used it for approximately 14 hours on this battery which seems very short.

Regards

Chris

[heinrichsweikamp]

Hi,

Which firmware was used?

Regards,
Matthias

[chood98]

Hi Matthias

Im on 1.81

Regards

Chris

[Tjotte]

I'm on v1.76

ragerds Tommy

[heinrichsweikamp]

Hi,

Both versions have no known battery issues. The OSTC3 stops ~1V (That the logbook is not written correctly is normal if the unit dies during a dive), it's unlikely but not impossible that the battery voltage dropped rapidly during this dive. Please email us directly: info@heinrichsweikamp.com and we'll see what we can do here.

Sorry for the issues here.

regards,
Matthias