Long version: New battery arrived a week ago. Once charged fully I put the veggies back in the freezer for next time. Thank you kindly for the prompt reply. How can I tell if I have the old or new model of the Nighthawk? Where you use it plays a factor as well. And if you're looking for a 4G LTE hotspot, the MiFi 8800L costs a heck of a lot less at $199.99. I'm not here to appologize for Netgears design. https://www.calyxinstitute.org/ We will suffer less overheating, loss of signal and gain in connection quality. If you have a small fan or "Cool pack" / "Blue Ice" etc. > I only usually charge my mr1100 when it is turned off. (what tells if it's the old or new model?). Minimal operation, nothing but it and my laptop on wifi, no LTE operating (no SIM) and no wired ethernet. At which point I unplug the USBC, wait and few seconds and plug it back in or switch to the other USBC wire I have. At which point I just pop the back cover off (which is now very loose) and take the battery out, wait ~10sec or so, pop it back in and restart. You may also see warnings about the temperature of the device. It was overheating! I blocked any direct sunlight, used some spare thermal tape to put a heat sink on it and put it infront of my AC vent and no trouble since! Belatedly, I realized I hadn't followed up. We hope you'll join the conversation by posting to an open topic or starting a new one. I use them for home interent due to living in a rural area. They agreed that a device that's operating 10C or 15C above spec'd max operating temp is a problem, and they would send yet another unit. look for them to go into the internet business soon. I may go back to the local store to talk about other options, but I'm seriously disappointed. The mr1100 only supports QC2 I believe, but the Anker falls back. Unit is Gen1, firmware 12.05.05.00, build date 2018/07/25. You can also check under: Settings: Apps or Application Manager: Running. Verizon Wireless MHS900L Ellipsis Jetpack, MiFi Hotspot. Yes. Due to inactivity, your session will end in approximately 2 minutes. One would think the design would not overheat when used as advertised and with the accessories supplied. I didn't check the tempwhen it was refusing a charge a couple days ago, but from fealing it in my hand it was definately warmer at that time -- perhaps approximately body temperature. And am using an Anker QC3 charger. The unit was barely warm. Sometimes my unit does display the temp warning when I first plug it into charge. If none of these things work, I suggest creating a real support ticket with Netgear. And remember, using the device in hotter areas will cause it to appear hotter than normal. I've actually never seen the behavior you describe where the unit starts charging but then gets to a certain percentage and stops. I discovered this thread just this evening. So I used this highly technical solution to get a full charge. The Verizon Jetpack MiFi 8800L works in over 200 countries and supports 2.4GHz and 5GHz bands. Or a local store? FREE Shipping. It's a nice unit, and capable of such great speeds when enhanced with the antenna. Using the device while charging can also cause it to feel warm or hot. And is this strickly a firmware problem? Avoid leaving the device in hotter areas, like in direct sunlight, or in a hot car. has done that since day one and can not even feel the difference in the battery or the device and mine only goes in if i need to move it for something as i keep mine hardwired. It was indeed burning up. you can cool it down as it charges -- but be careful you don't get condensation/liquid water in the unit. Total agree that the thermal envelope parameters are crazy small and/or the placement of the sensors is too close to a heat source or miscalibrated. While it's good that the mr1100 now tells you why it is not charging -- due to battery/device over temp. Agreed. Generally I charge up overnight (sometimes it has to cool off first) in the house where it is ~72F. But you can use the MR1100 without the battery. Or, while the unit is running, login to the self-management web pages and go to WiFi Status -> Device. This was unexpected to him -- he said he'd had to replace mr1100s before and always had to do whole unit, not just battery, and was surprised when batteries were listed in stock today. Yes, there are others that use the freezer/ice bag approach as well. Reducing the screen brightness, and timeout settings can help keep it cool.