PowerGlass charge lever by layer in percents? Who knows?

Does anybody know what exactly charge lever in percent (%) for each PowerGlass layer?

DC Rainmaker told about it:

orange circle line - maximum charge lever - but what exactly? 100% or 90% ??

Second layer - minimum solar charge - for the whole glass - what charge level? 10 or 20 or 30 % ??

I couldn't such info in the Garmin video - https://www.youtube.com/watch?time_continue=40&v=uKZyRbrm5V4&feature=emb_title

and in this Garmin help - https://support.garmin.com/en-US/?faq=kGDYS8VOj30eMl3lMyqSi6

Top Replies

gaijin over 5 years ago +1 suggested

Your first picture is incorrectly labeled. Here is how it should be:

Over the display there are two layers: the Gorilla Glass Layer and the Power Glass layer.

The Power Glass Layer has two components…
gaijin over 5 years ago in reply to Volker +1 suggested

Volker said:
Depanding on the settings, the battery consumption is up to 4%-5%/ hrs with GPS, so the maximum solar load is about 30% (= +6 hrs). But maybe it is even less, because we donˋt know, how Garmin…

All Replies

0 gaijin over 5 years ago

Your first picture is incorrectly labeled. Here is how it should be:

Over the display there are two layers: the Gorilla Glass Layer and the Power Glass layer.

The Power Glass Layer has two components: Outer ring which is 100% active and not transparent, and the remainder of the layer which is "semi-transparent" (according to Garmin (see 0:45 in your attached video)) and is much less than 100% active. I do not know the specific active percentage of the main area of the Power Glass, but I would guess it is only about 10% which means it would transmit about 90% of the light passing through it - said another way, it would obstruct about 10% of the display, but because it is composed of very thin strands ("photovoltaic solar traces" according to Garmin in the video), it is essentially transparent.

HTH

0 Prostobzor over 5 years ago in reply to gaijin

Thanks for scheme and answer!

Did you mean, that PowerGlass is an one part? Right?

It's very strange - it's not possible to find out how to operate PowerGlass officially with ratio zones / percents of charge :-(

0 gaijin over 5 years ago in reply to Prostobzor

You're welcome!

Yes, PowerGlass is one part / one layer with two components - outer ring and central area.

This info from Garmin in the "Specs" part of their product description doesn't answer your question of how the PowerGlass operates in percentages, but I think it has all the info the general user needs to know; i.e. how much light is needed to obtain the stated charge improvements:

Smartwatch: Up to 21 days +3 days*
GPS: Up to 60 hours +6 hours**
GPS and music: Up to 15 hours +1 hour**
Max battery GPS mode: 120 hours + 28 hours**
Expedition GPS activity: 46 days + 10 days*
Battery saver watch mode: 80 days + 40 days*

*assuming all-day wear with 3 hours per day outside in 50,000 lux conditions
**assuming use in 50,000 lux conditions

HTH

0 Volker over 5 years ago in reply to gaijin

Depanding on the settings, the battery consumption is up to 4%-5%/ hrs with GPS, so the maximum solar load is about 30% (= +6 hrs). But maybe it is even less, because we donˋt know, how Garmin is calculating the +6 hrs with GPS.

0 gaijin over 5 years ago in reply to Volker

Volker said:
Depanding on the settings, the battery consumption is up to 4%-5%/ hrs with GPS, so the maximum solar load is about 30% (= +6 hrs). But maybe it is even less, because we donˋt know, how Garmin is calculating the +6 hrs with GPS.

If we take this part of the table as a base:

GPS: Up to 60 hours +6 hours**

**assuming use in 50,000 lux conditions

And if we further assume this is based on starting at 100% charge and ending at 0% charge.

Then we can see that without any solar charging, the watch will use 1.667% (100% / 60 Hours) of the charge per hour and with solar charging, the watch will use 1.515% (100% / 66 Hours) of the charge per hour.

So, with best case continuous exposure to sunlight, the best we can hope for when using GPS is a 0.152% per hour decrease in battery consumption.

In my opinion, hardly worth the added expense, but YMMV.

HTH

0 Prostobzor over 5 years ago in reply to gaijin

So, acc. to Garmin : GPS: Up to 60 hours +6 hours**

Let's don't calculate GPS work. Only Solar charge will take into account.

6 hours - 100%

1 hour - x

x = (100 x 1) / 6 = 16,6 % for each Solar charge with 50 000 lux

What do you think about this calculation?

0 Prostobzor over 5 years ago in reply to Prostobzor

By the way - I've got a full charge indicator before 50 000 lux.

0 Prostobzor over 5 years ago in reply to Prostobzor

Sorry, who knows how to edit title for post? I want to change to new one - "PowerGlass charge level by layer in percents? Who knows?" - "lever" - it was misprint :-( pardon.

0 KrapfenKringel over 5 years ago in reply to Prostobzor

btw a smartphone isn't a certified light-meter

0 gaijin over 5 years ago in reply to Prostobzor

Prostobzor said:
So, acc. to Garmin : GPS: Up to 60 hours +6 hours**

Let's don't calculate GPS work. Only Solar charge will take into account.

6 hours - 100%

1 hour - x

x = (100 x 1) / 6 = 16,6 % for each Solar charge with 50 000 lux

What do you think about this calculation?

No, it doesn't work that way.

The 60 hours is battery only, no solar charge help. So 100 / 60 = 1.667%/hour

The 66 hours is ALL battery AND solar help. So 160 / 66 = 1.515%/hour

The +6 hours does not and cannot stand by itself because the watch never runs on solar energy only.

Said another way, from 100% charge to 0% charge using only GPS as Garmin has tested, the watch will run for some duration of time between 60 hours (no solar help) and 66 hours (maximum solar help).

HTH