Maestro Internal Battery - Any other steps?

Bob K8RC · December 2019

I have a Maestro Model A that has bricked (no boot) after being unused for a couple of months.

I have followed the procedure given in https://helpdesk.flexradio.com/hc/en-us/articles/360004514391-Manually-Re-charging-the-Maestro-A-Internal-Battery to charge the internal battery for several hours but still no joy.

Are there any other steps I can take before I arrange for a trip back to Austin?

Thanks,
Bob, K8RC

Jean Drolet · December 2019

In your Maestro it’s Dell tab juste disconnect your Dell tab and plug charger to your Dell tab. Maybe change battery in your tab.

Jean Drolet · December 2019

https://d2r1vs3d9006ap.cloudfront.net/s3_images/1798631/RackMultipart20190722-72263-1vggeez-TadOtM7PTU2tuA3SCSI_zA__2__inline.jpg?1563807437

RFord · December 2019

Try following this procedure:

http://www.flexradio.com/downloads/maestro-a-internal-battery-charging-procedure-pdf/

Regards
Ronald/W4RJF

Bob K8RC · December 2019

Did any of you notice that I said I had already DONE the internal charging procedure?

Steve K9ZW · December 2019

@ Bob K8RC

One of my Maestros required being left on charge a couple days to recover from a non-charging battery issue. Easy extra step to try if you haven't tried it.

Make sure you have tried a USB "Slow" charger during your rescue operation, as apparently the high amperage style main tablet charger leaves the protection circuitry in a state where it doesn't take the charge. Must be a case of took much of a good thing?

If the battery truly is kaput, some folks have replaced it on their own, or had a service like Batteries+ replace it for them. FRS also does a replacement service.

A past EOL battery isn't likely to come back, and some say it a high risk for swelling.

GL and 73

Steve
K9ZW

Blog: http://k9zw.wordpress.com

Jean Drolet · December 2019

https://community.flexradio.com/flexradio/topics/spot-screen-maestro

WX7Y · December 2019

Here is the battery you will need to replace the internal Tablet battery.
as others have stated charge the battery for a couple of days before you put it back together to make sure the original battery is toast.
Also you want to change the new Battery a couple of day before you put it in.
Best if you use a external charger like a 2A cell phone or tablet charger to charge the internal battery.

https://www.amazon.com/dp/B06XSX6MLW/ref=dp_cerb_1

I found a couple short cable that I made a Micro USB cables mail and female so I could charge the Tablet independently of the charging circuit in the Maestro that just plug together in the external battery compartment so I can even charge it now from my external battery with out pulling the case apart just in case.
I think these cables came in some external batteries I purchased and like a good ham I never through anything like this away but the cables may be available from EBAY or Amazon, I think they where about 12" long and fit perfectly.

If I find some I'll post here
73
Bret
WX7Y

WX7Y · December 2019

I think this is like one of the cables I used https://www.amazon.com/CableCreation-Braided-Adapter-Function-Aluminum/dp/B01M1K8B1W/ref=sr_1_15?keywords=short+right+angle+Micro+USB+cable+to+female+USB&qid=1576802814&s=electronics&sr=1-15
and this one https://www.amazon.com/StarTech-com-Micro-USB-Cable-Angle/dp/B003YKX6W2/ref=sr_1_9?keywords=short+ri...

Remove the MicroUSB to MicroUSB original cable between the Flex board and replace it with these two cables then route them up into the external Battery case when the case is back together plug the two USB cables together and the Maestro charging circuit will be back to normal.

This way when you want to charge the battery separate from the Maestro you can use the External battery or a external USB 2A charger with a USB male to female extension cable and a 2A 5V wall wort.

Your mileage will vary and do this at YOUR own risk
Bret
WX7Y

Maestro Internal Battery - Any other steps?

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