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Forum Discussion
New Firmware -- Overtemp warning
Saw a new message and icon on my mr1100 since updating to the most recent AT&T firmware a week or so ago.
While it's good that the mr1100 now tells you why it is not charging -- due to battery/devi...
Jonathan,
I have a tethered Aruba RAP-109 device to the eth port for work when possible.
When not possible, I use Global Protect (vpn) through the Nighthawk, hence the need for solid battery operation.
So I used this highly technical solution to get a full charge. I put the battery in the fridge for a few minutes, then plugged it in and watched the mobile app temps in advanced info. As the temp climbed from 30C to 40C, I took a bag of frozen veggies out of the freezer, put the unit on a paper towel on the bag of frozen veggies. Watch the temp drop back down to 33C and it seemed to break past the point where it gave the Battery Mode Error, and charged fully. Once charged fully I put the veggies back in the freezer for next time. So far it has not dropped below 96% charge and is hovering at 39C.
Nice! Yes, there are others that use the freezer/ice bag approach as well.
You can also run the MR1100 without the battery in a variety of ways:
1) QC2/3 car charger
2) QC2/3 portable battery
-Jonathan
FWIW,
I was looking for information about this not-ever-charging-the-battery-because-stupid-somehow MR1100 problem. It is rewarding to see that it affects others.
I consider this problem solved for me. Thanks!
Some data points that I've collected:
- Using the factory-supplied adapter, charging almost never happens, although it has charged the battery approximately twice in the four months I've had it, for whatever reason it decided to do this. Ambient temperature doesn't matter: The battery is too hot, it normally says. (Although one time, it told me that it was reducing charging current to prolong the life of the battery, which would be lovely, but it still didn't do me the courtesy of charging it.)
- The modem works fine without a battery and the factory-supplied Netgear US 120VAC adapter, which doesn't support any iteration of QuickCharge. I have used it this way continuously, with constant 24/7 data transfer (easily averaging over 10 megabits over the duration), for months at a time. It is stable in this configuration, for me.
- According to the indicators on my QC II battery pack, QuickCharge is indeed being utilized if it is available. I did not measure the voltage on the wire to see if it was 9v or 12v, or the current, though it would have been interesting to have done so.
- When using QC II, the status screen in the modem declares that the battery is "Quick Charging" and does actually charge it.
- Using an old 2-port Anker USB travel adapter that predates all iterations of QC, the battery does indeed charge. It has increased from 3% to 12% over the past few hours (during which time it has been both powered on and actively transferring data), which is adequate for my purposes.
From this, I can deduce that QC isn't needed (but it's probably nice to have), that a somewhat-unremarkable, high-quality aftermarket power supply from Anker charges the battery without overtemperature alarms, that the temperature alert is a bug as-implemented, and that the included US 120VAC Netgear adapter is completely unsuitable for use with the device that it came with.