Charging speed of OSTC2

[hgw]

Hello,
it takes ”forever” (practically a day or two) to charge my OSTC2. I’ve had this same experiece with two different units. I have measured the charging current using about 15 different dumb chargers with outputs 1,8A- 3A. With all of them the charging starts with more or less corresponding current, but after couple of minutes it drops to about 0,5A.

Is my charging pad faulty ? I have this one [attachment=0]20240808_071906_Original.jpeg[/attachment]

I got my OSTC2 a few years ago, and about the same time took a hiatus from diving unfortunately. So I’ve basically just been occasionally charging the computer back to life and only slightly cursing the charging speed 8-)

[scubatinoo]

Charging speed is a mess! I have the same pad.

I startet charging my OSTC2 yesterday at 8:00 in the mornig with 18% left. At 16:00 in the afternoon i had 98%

Temperatur in the office increased during the charging time from 26°C in the morning to 32°C in the afternoon :lol: just kidding, but most of the chargings power seems to become heat... I expirience the same issue with my phone in the car.

In my eyes: useless technology.

But at least the HW Charging Pad seems to work with my Google Pixel as well, litteraly. :D

[hgw]

[quote=scubatinoo post_id=24723 time=1723132639 user_id=769]
Charging speed is a mess! I have the same pad.

I startet charging my OSTC2 yesterday at 8:00 in the mornig with 18% left. At 16:00 in the afternoon i had 98%
[/quote]

That makes 10%/h, I'd be thrilled with that. I've been charging now for 6-7hours, 50->72%

[scubatinoo]

I put the charging Pad on the table and then the OSTC on top to maintain a proper "contact"... the other way around I also had charging problems.

[hgw]

I always charge that same way, computer on top. Otherwise the pad won't stay in correct place.

[swissdiving]

I keep the qi charger in place with bungee. Works perfect. And it has the advantage that the charger stays cooler = faster charging.


[attachment=0]20231116_204653.jpg[/attachment]

[hgw]

I have tried charging on top of a icepack, no difference in charging speed, but atleast the charging does not stop due to overheating.

[Frank D]

I got a new OSTC 2 and when put on the charger it decharges!
Started at 82% - after 3 hours: 78%

[hgw]

[quote="Frank D" post_id=24746 time=1724257611 user_id=1094]
I got a new OSTC 2 and when put on the charger it decharges! :o
Started at 82% - after 3 hours: 78%
[/quote]

I have had that happening. Try different chargers. Make sure the charger is not a "fast" or "intelligent" charger, but a dummy one specced with constant output of 5V and minimum of 1,5 amps, preferably more.

[heinrichsweikamp]

Hi,

Obviously a fault in the charger or (unlikely) in the OSTC 2. Did you contact our support already?

regards,
Matthias

[hgw]

I just did :) Like I wrote earlier, it has not bothered me too much. But if I'm to start actively diving again then it'll will be an issue. Thanks.