Reddit reviews 4 in 1 Board UPS for Raspberry pi 18650 Battery Charging 3.7V Step up to DC 5V 12V with Protection (5v ouput)
We found 2 Reddit comments about 4 in 1 Board UPS for Raspberry pi 18650 Battery Charging 3.7V Step up to DC 5V 12V with Protection (5v ouput). Here are the top ones, ranked by their Reddit score.
funcion 1 :step up board, with 18650 battery case, 3.7v step up to 12v ouputfuncion 2,charing board, input 5v 1A or 2A to charge the 18650 batteryfuncion 3: charing protection, Over-charge protection, over-discharge protection, over-current protection, over-temperature protection, output short circuit protectionfuncion 4: UPS（Uninterrupted power supply）：if input 5v , it will charge the battery and no use the battery power to step up ; if power failure, it will automatically use the battery power.You can use two or more in parallel to get more output power.
Ironically it seems like the cheaper ones do. You can probably look at Amazon Questions and stuff to see. Or look for the ones that actually advertise pass-through mode.
What you might also want to check out is this.
These should support ARMbian just fine, the NAND is the only thing that doesn't work on mainline Linux with the exiting NTC CHIP.
Working on the write-ups now, but I've run both SlackwareARM-Current and Arch ARM on mine with the SD slot added. Works fine except that the GPU driver (Lima) is still not in the current Linux kernel (it is accepted for the next release though). I built a custom kernel with it enabled and there are still some things that need to be implemented to make it really usable so hopefully by the time 5.2 is released it will be working better. I tried to get the closed source Mali blobs working but was unable.
The WiFi driver is also still in staging, but works for me in the USA (my understanding is other countries use slightly different channels/frequency setups and may or may not be implemented in the firmware currently). Not sure about bluetooth, I haven't really tried it yet.
With the eMMC instead of the NAND, these shouldn't have any issues running whatever ARM ported distro you want. AFAIK though Raspbian is specifically for Raspberry Pi devices. ARMbian should be similar enough though.
One other thing to consider is that it does essentially have the Pi UPS built into it (this thing: https://smile.amazon.com/Raspberry-Battery-Charging-Protection-Output/dp/B07DB78PGJ/ref=sr_1_5?keywords=pi+ups&qid=1559244296&s=gateway&sr=8-5). That can be a big deal for certain projects. Just needs to be connected to a LiPO battery via its header.