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charge whilst off?
10-25-2018, 11:50 PM
Post: #1
charge whilst off?
hi, potentially silly question here; I've searched, but not found this mentioned anywhere:

Does the Prime have to be On while charging?

It comes on, when you insert a powered USB cable, if off, but can I turn it off again and let it charge with the screen off? Or does it have to be On?

I could test it, but with the lack of granularity in the battery level display, it's not obvious.

Mine is a G2 if that makes a difference.

thanks…

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10-26-2018, 12:44 AM
Post: #2
RE: charge whilst off?
(10-25-2018 11:50 PM)cdmackay Wrote:  Does the Prime have to be On while charging?

No. It charges fine when turned off.

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10-26-2018, 05:25 PM
Post: #3
RE: charge whilst off?
(10-26-2018 12:44 AM)Joe Horn Wrote:  
(10-25-2018 11:50 PM)cdmackay Wrote:  Does the Prime have to be On while charging?

No. It charges fine when turned off.

Great, thanks very much Joe.

Cambridge, UK
41CL/DM41X 12/15C/16C DM15/16 71B 17B/BII/bII+ 28S 42S/DM42 32SII 48GX 50g 35s 30b/WP34S Prime G2
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10-26-2018, 06:40 PM
Post: #4
RE: charge whilst off?
(10-25-2018 11:50 PM)cdmackay Wrote:  Mine is a G2 if that makes a difference.
I have both, G1 and G2. Yes, there is some difference, when charging. When You connect the calculator to powered USB cable and switch it Off, after switching it On, G1 model shows charging indicator immediately after switching On, G2 model do not shows charging indicator immediately, only a few seconds later a charging indicator appears, it is a bit confusing.
The calculator charges when it is turned off. Tested.
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10-26-2018, 07:32 PM
Post: #5
RE: charge whilst off?
(10-26-2018 06:40 PM)Voldemar Wrote:  
(10-25-2018 11:50 PM)cdmackay Wrote:  Mine is a G2 if that makes a difference.
I have both, G1 and G2. Yes, there is some difference, when charging. When You connect the calculator to powered USB cable and switch it Off, after switching it On, G1 model shows charging indicator immediately after switching On, G2 model do not shows charging indicator immediately, only a few seconds later a charging indicator appears, it is a bit confusing.
The calculator charges when it is turned off. Tested.

Yes, I noticed that too.

thanks, Voldemar.

Cambridge, UK
41CL/DM41X 12/15C/16C DM15/16 71B 17B/BII/bII+ 28S 42S/DM42 32SII 48GX 50g 35s 30b/WP34S Prime G2
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10-27-2018, 04:29 AM
Post: #6
RE: charge whilst off?
(10-25-2018 11:50 PM)cdmackay Wrote:  I have both, G1 and G2.

Did the battery sizes of G1 and G2 are the same size?

Thank you for your answer.
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10-27-2018, 04:45 PM (This post was last modified: 10-27-2018 04:46 PM by cdmackay.)
Post: #7
RE: charge whilst off?
(10-27-2018 04:29 AM)Jiew Wrote:  
(10-25-2018 11:50 PM)cdmackay Wrote:  I have both, G1 and G2.

Did the battery sizes of G1 and G2 are the same size?

Thank you for your answer.

Just to clarify: I didn't write that quote above, which came from @Voldemar.

To answer your question:

I don't believe so, no.

I just checked my G2: 3.7V, 7.4Wh, 2,000mAh

I don't have an earlier model, but I believe they came with a 1,500mAh battery.

edit: if you meant physical size, I can't say as I don't have both to compare.

Cambridge, UK
41CL/DM41X 12/15C/16C DM15/16 71B 17B/BII/bII+ 28S 42S/DM42 32SII 48GX 50g 35s 30b/WP34S Prime G2
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10-27-2018, 10:24 PM
Post: #8
RE: charge whilst off?
About the size, yes, they are the same. I removed my 2200 mhA Samsung battery from my G1 to G2. No problem.
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10-27-2018, 10:49 PM (This post was last modified: 10-27-2018 11:37 PM by Voldemar.)
Post: #9
RE: charge whilst off?
(10-27-2018 04:29 AM)Jiew Wrote:  
Did the battery sizes of G1 and G2 are the same size?
http://fs1.directupload.net/images/181028/jfpykmn9.jpg
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