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Charging OSTC 4
Posted by: nicosol ()
Date: August 29, 2016 12:29PM

Hello
I'm having problems to load my OSTC 4. How I can not properly place to charge . If you move a millimeter , it no longer works ...
Always have the screen on to see if the charging continues .

Very disappointed recharge system

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Re: Charging OSTC 4
Posted by: heinrichsweikamp ()
Date: August 29, 2016 12:37PM

Hi,

We also have a video on how to place the charger: [www.facebook.com] You can see on the charger LED if the unit recharges properly. No need to keep the screen running. Make sure to have a USB power supply with at least 1A of output current in order to power the charger.

regards,
Matthias

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Re: Charging OSTC 4
Date: March 11, 2017 07:35PM

just a question ... can i use the wireless charging from a SAMSUNG mobile wireless charger ?

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Re: Charging OSTC 4
Posted by: heinrichsweikamp ()
Date: March 13, 2017 09:45AM

Hi.

Wi didn't test so many chargers. If you want to try a non heinrichs/weikamp QI charger you have to remove the backplate to get in close contact to the receiver circuit.

kind regards,
Christian

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Re: Charging OSTC 4
Posted by: Ansgar ()
Date: May 17, 2017 08:51AM

Hello,
i have exactly the same problem.
I have to place it absolut exactly (1mm of move and it doesnt charge)
If not exactly in place the LED flashes quickly green.
I tried different chargers (1A, 2A, an PC with USB 2.0 and USB3.0)
If i remove the backplate it charges ok.
Is there a solution or what charger i have to use?

kind regards
Ansgar

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Re: Charging OSTC 4
Posted by: heinrichsweikamp ()
Date: May 17, 2017 09:29AM

Hi Ansgar,

If it's one of the older OSTC4 (smaller serial 180 or so) then you still have the Qi 1.1 standard. With this, the positioning is a bit tricky. but we'll modify your unit free of charge into the new 1.2 standard (10mm transfer range compared to 4mm) and replace your charger with one of the new models. Please contact us then: info@heinrichsweikamp.com

For both versions, a USB power supply with 2A is recommended and 1A is minimum.

regards,
Matthias

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Re: Charging OSTC 4
Posted by: tanomogi ()
Date: May 18, 2017 06:31AM

For choosing alternative charger(Qi Standards with certificate by WPC) for both Phone / OSTC.
- [www.wirelesspowerconsortium.com]

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Re: Charging OSTC 4
Posted by: Claude ()
Date: July 30, 2017 06:50PM

Hi all,

A solution for the position's charger. I made a pad with a 3D Printer.

Regards

Claude

OSCT4 #398
OSTC2C #8058

Attachments: 20170730_125058_resized.jpg (60.8 KB)   20170730_124737_resized.jpg (57.8 KB)   20170730_125355_resized.jpg (51.2 KB)  
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Re: Charging OSTC 4
Date: July 31, 2017 10:54AM

Claude,

Do you sell this? I am very interested. Even with the fix HW installed it still takes to much time to find the right position.

Peter

OSTC4 #82

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Re: Charging OSTC 4
Posted by: gorcio ()
Date: July 31, 2017 09:45PM

Claude

is there any chance that you could share the STL file so that interested people could send it to printing service (or order from you if run such service) ? It looks like it is symetric ... but symetric does not really work for me ... and according to the manual - it is not centrally located ...

Best regards

gorcio



Edited 1 time(s). Last edit at 07/31/2017 09:46PM by gorcio.

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Re: Charging OSTC 4
Posted by: Claude ()
Date: August 01, 2017 10:41AM

Hi all,

Your are right Gorgio it's not symetric as you can see in the picture. The design I made works fine with my computer.

Here is the STL file. I do not take any garantee about the result.

Regards

Claude

OSCT4 #398
OSTC2C #8058

Attachments: 20170801_112826_resized.jpg (326.2 KB)   20170801_113256_resized.jpg (341.1 KB)   Support Charge OSTC4.stl (53 KB)  
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Re: Charging OSTC 4
Posted by: gorcio ()
Date: August 01, 2017 07:30PM

Merci beaucoup Claude. First will send my unit in for charging hardware replacement, then ... will see if charging pad is needed :-)

Best regards
gorcio

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Re: Charging OSTC 4
Posted by: Jay ()
Date: November 18, 2017 04:33PM

Hi Claude,

Thanks so much for your charging pad stand 3D design. It works perfectly on my unit!


Claude Wrote:
-------------------------------------------------------
> Hi all,
>
> A solution for the position's charger. I made a
> pad with a 3D Printer.

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Re: Charging OSTC 4
Posted by: lionelw ()
Date: August 22, 2018 04:00PM

@heinrichsweikamp

Can you please post an engineering drawing showing the precise location of the charging coil inside the OSTC4 so that I can make a fixture to hold it in the correct location rather than trial and error.

Given that the charging process is so difficult, I'd suggest that you provide a plastic template to hold it in position. I'd be happy to share a design once I have found a simple solution that works reliably.

I tried the design that Claude kindly posted, but it does not work well for me. I think something that clips in place securely is what is needed so that it can be left unattended and continues to work even if moved e.g. onboard a boat.

Thanks

Lionel

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Re: Charging OSTC 4
Posted by: heinrichsweikamp ()
Date: August 22, 2018 04:02PM

Here's the exact center of the reciever coil ion the OSTC4



Regards,
Matthias



Edited 1 time(s). Last edit at 08/22/2018 04:02PM by heinrichsweikamp.

Attachments: positionierung.jpg (102 KB)  
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Re: Charging OSTC 4
Posted by: Cyborg ()
Date: August 22, 2018 11:01PM

lionelw Wrote:
> I'd suggest that you provide a plastic template to
> hold it in position. I'd be happy to share a
> design once I have found a simple solution that
> works reliably.
Newer versions of OSTC4 have a notch in the bottom plate to keep the charger just in place

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Re: Charging OSTC 4
Posted by: lionelw ()
Date: August 22, 2018 11:12PM

Thanks.

I received my new OSTC4 only 3 weeks ago and there isn't a notch. Can you please send me photo of the plate.

@heinrichsweikamp - Are these plates available to be sent out if they locate charger correctly?

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Re: Charging OSTC 4
Posted by: Claude ()
Date: August 23, 2018 01:42PM

My second OSTC4 has the plate with the notch.

That plate brings a greater plastic thickness that makes my charger does not work properly (blinking).

I have to remove the plate (2 screws) for a correct recharge.

Can we find a more powerfull coil ?

Regards

Claude

OSCT4 #398
OSTC2C #8058

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Re: Charging OSTC 4
Posted by: lionelw ()
Date: August 23, 2018 02:17PM

It is tempting to make a recess for the charger in the right position that will have two benefits.
1) locate the charger correctly
2) bring the charger coil closer to the device coil

Probably only needs to be 1.5mm deep. But I don't want to alter my unit and risk warranty issues, nor risk of damage in use (though that area of computer is against arm - wetsuit or drysuit.

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Re: Charging OSTC 4
Posted by: Cyborg ()
Date: August 24, 2018 08:01AM

lionelw Wrote:
> Can you please send me photo of the plate.

Hi, I will send photos as soon as my unit returns from service. But both my units #439 and #152 had that notch. I had not any problems witch charging.

Cyborg
OSTC4 #439, #152

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Re: Charging OSTC 4
Posted by: gorcio ()
Date: August 27, 2018 05:58PM

My unit has a recess , and has a charging problem. Tried with 3 different chargers.
Previous unit (RIP) did not have a recess and never had any issue charging.

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Re: Charging OSTC 4
Posted by: heinrichsweikamp ()
Date: August 27, 2018 06:19PM

Hi,

We always recharge every computer (OSTC4 or not) through this inductive charger (We have a board of 40 Qi chargers for this). So, it should work on your units just fine. Yes, requirement on the USB power supply is demanding (We recommend a 5V/2A power supply). With the first ~180 units (Which had the older Qi standard which we modify to the new version free of charge) all OSTC4 use the newer Qi 1.2 standard (Green PCB in the charger) it should recharge just fine.

regards,
Matthias

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Re: Charging OSTC 4
Posted by: Claude ()
Date: September 02, 2018 01:04PM

Hi all,

My solution for an efficient charge.
You cut the back plate around the place for the coil.

With this hole, no problem.

You can also adjust the hole and the coil will stay in the right place even if it's no stable...

Regards

Claude

OSCT4 #398
OSTC2C #8058

Attachments: 20180902_135310.jpg (190.5 KB)   20180902_135325.jpg (196.6 KB)   20180902_135455.jpg (195 KB)  
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Re: Charging OSTC 4
Posted by: heinrichsweikamp ()
Date: September 03, 2018 10:11AM

Hello Claude,

Don't butcher the OSTC4 with your Dremel winking smiley

The unit would not have left the production here if we couldn't recharge it as it was built. We always recharge the units before shipping with the same charger we include in the shipping then...

I'm quite sure with a proper power supply (2A/5V) the unit recharges just fine even with a complete backplate.

regards,
Matthias

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Re: Charging OSTC 4
Posted by: Cyborg ()
Date: October 09, 2018 05:01PM

lionelw Wrote:
> Can you please send me photo of the plate.

Here you are.

Attachments: 20181008_143039_resized.jpg (231.7 KB)  
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Re: Charging OSTC 4
Posted by: lionelw ()
Date: October 09, 2018 05:24PM

Thanks. So that plate is completely different to the one on my unit #506. It looks much better as not only does it have the recess, but the bungee mounts look much better and seems like would fit better on the arm.

@Matthias can you please let me know if this back plate will fit my OSTC4. The photo only shows two screws (which seem to be in the correct position for my unit but cannot see if there are also another two for the other long edge (under the mount, maybe obscured by the bungee). How do I get hold of one of these?

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Re: Charging OSTC 4
Posted by: Cyborg ()
Date: October 09, 2018 05:47PM

lionelw Wrote:
The photo only shows two
> screws (which seem to be in the correct position
> for my unit but cannot see if there are also
> another two for the other long edge (under the
> mount, maybe obscured by the bungee). How do I get
> hold of one of these?
There is no other screws on the lower edge. But there are two extra hooks on the alu body...

Attachments: 20181009_184139_resized.jpg (219.4 KB)  
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Re: Charging OSTC 4
Posted by: lionelw ()
Date: October 09, 2018 05:56PM

Hmmm, so it's seems like there was perhaps a redesign. Not sure which is older (though your serial number would suggest mine is). Strange as this seems like a backwards step!

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Re: Charging OSTC 4
Posted by: Cyborg ()
Date: October 09, 2018 06:04PM

It seems strange to me, too.
Both my units, #439 (flooded at 30m) and current #152 have the same back plate.



Edited 1 time(s). Last edit at 10/09/2018 06:04PM by Cyborg.

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Re: Charging OSTC 4
Posted by: lionelw ()
Date: October 09, 2018 06:08PM

Correction, that should have been (though serial number would suggest mine is newer).

@Matthias can you please shed some light. I am still struggling with charging and will have to make a 3D printed jig to hold it in place. Also the charger gets hot quickly and seems to stop charging - maybe I'll charge in fridge!

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