'External Power On > Charge Battery' does not work as expected

Discussion related to the Garmin Montana 7x0 series GPSr
ConiKost
Posts: 947
Joined: Sat Jan 16, 2021 4:08 pm

'External Power On > Charge Battery' does not work as expected

Unread post by ConiKost »

If I choose Setup -> System -> Advanced Setup -> External Power On and set this option to "Charge Battery", it seems to do the same, as the setting "Turn On". This seems to be wrong, as IMHO "Charge Battery" should not power the whole unit into main menu, but only show the charing battery screen. Currently, it seems to behave same as "Turn On" setting.

Can anyone reproduce?
Garmin DriveSmart 86 MT-D (FW 6.80, HW V8, GPS 9.00.50, 32GB SD)
Garmin Montana 750i (FW 19.00, HW V6, GPS 2.90, Touchscreen 85.07, ​64GB SD)
User avatar
GPSrChive
Site Admin
Posts: 3881
Joined: Fri Jan 20, 2017 11:29 pm

Re: 'External Power On > Charge Battery' does not work as expected

Unread post by GPSrChive »

Unfortunately, Li-ion battery devices, like the Montana 7x0, require the device to be at least partially awake to properly charge the battery. So, yeah, not much difference.
ConiKost
Posts: 947
Joined: Sat Jan 16, 2021 4:08 pm

Re: 'External Power On > Charge Battery' does not work as expected

Unread post by ConiKost »

Well, but what is then supposed the difference between both options?
Even, if I power on manually the Montana, put in my AMPS mount and turn Ignition on (AMPS is powered on with relais and Ignition plus), I don't see any difference between both options. In both variants, Montana stays in main menu and starts charging?
Garmin DriveSmart 86 MT-D (FW 6.80, HW V8, GPS 9.00.50, 32GB SD)
Garmin Montana 750i (FW 19.00, HW V6, GPS 2.90, Touchscreen 85.07, ​64GB SD)
Exurban
Posts: 16
Joined: Sun Nov 01, 2020 12:07 pm

Re: 'External Power On > Charge Battery' does not work as expected

Unread post by Exurban »

If you power on manually then put it in the powered cradle the logic would be that you wanted it on so it stays on and is also charging. Sounds right to me. I wouldn’t expect it to go into charge only mode.

If it is off and you apply power, it goes to the battery charging icon only. Because, you did not want it on, only want to charge it. Also sounds right.
ConiKost
Posts: 947
Joined: Sat Jan 16, 2021 4:08 pm

Re: 'External Power On > Charge Battery' does not work as expected

Unread post by ConiKost »

Garmin replied and created an internal ticket. PSC-188048.
Garmin DriveSmart 86 MT-D (FW 6.80, HW V8, GPS 9.00.50, 32GB SD)
Garmin Montana 750i (FW 19.00, HW V6, GPS 2.90, Touchscreen 85.07, ​64GB SD)
ConiKost
Posts: 947
Joined: Sat Jan 16, 2021 4:08 pm

Re: 'External Power On > Charge Battery' does not work as expected

Unread post by ConiKost »

Just tested further. This seems to be a problem with AMPS mount only. With a USB connected, it works as intended. I guess this a bug for the Common Issues list.
Garmin DriveSmart 86 MT-D (FW 6.80, HW V8, GPS 9.00.50, 32GB SD)
Garmin Montana 750i (FW 19.00, HW V6, GPS 2.90, Touchscreen 85.07, ​64GB SD)
User avatar
GPSrChive
Site Admin
Posts: 3881
Joined: Fri Jan 20, 2017 11:29 pm

Re: 'External Power On > Charge Battery' does not work as expected

Unread post by GPSrChive »

To clarify, you are using the hardwired AMPS mount, not the automotive usb powered mount, correct?
ConiKost
Posts: 947
Joined: Sat Jan 16, 2021 4:08 pm

Re: 'External Power On > Charge Battery' does not work as expected

Unread post by ConiKost »

gpsrchive wrote: Tue May 04, 2021 8:38 pm To clarify, you are using the hardwired AMPS mount, not the automotive usb powered mount, correct?
Yes, this is correct.
Garmin DriveSmart 86 MT-D (FW 6.80, HW V8, GPS 9.00.50, 32GB SD)
Garmin Montana 750i (FW 19.00, HW V6, GPS 2.90, Touchscreen 85.07, ​64GB SD)
User avatar
GPSrChive
Site Admin
Posts: 3881
Joined: Fri Jan 20, 2017 11:29 pm

Re: 'External Power On > Charge Battery' does not work as expected

Unread post by GPSrChive »

I need to do some additional testing and research.

I suspect the settings you reference apply only to external power via USB, not an external mount, which always powers the device on when inserted.
ConiKost
Posts: 947
Joined: Sat Jan 16, 2021 4:08 pm

Re: 'External Power On > Charge Battery' does not work as expected

Unread post by ConiKost »

gpsrchive wrote: Tue May 04, 2021 9:02 pm I need to do some additional testing and research.

I suspect the settings you reference apply only to external power via USB, not an external mount, which always powers the device on when inserted.
I just give a try with the Car USB AMPS mount. Indeed, same problem exists here. It only works directly via USB on device.
Garmin DriveSmart 86 MT-D (FW 6.80, HW V8, GPS 9.00.50, 32GB SD)
Garmin Montana 750i (FW 19.00, HW V6, GPS 2.90, Touchscreen 85.07, ​64GB SD)
Post Reply

Return to “Montana 7x0”