You can use portable charger powerbank battery for smartphone, 5000-10000mA is enough for the router to work for many hours.
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Thanks...I will look at the SD card idea.
I am using the "Canakit 3.5A Raspberry Pi 4 Power Supply", which I thought was one of the recommended ones.
As far as the portable charger powerbank idea, I have thought about this, yet doing research, it seems as if it's hit and miss, in regards to whether there is a power blip when power loss occurs, which would cause the same issue. My searching mentions "powerbank with pass through charging", but it seems as if some have had luck with a specific one, yet ohters cause the quick blip.
What SD cards seems to be recommended? I went with an Adata class 4.
One thing NanoPi (or other RockChip devices) doing better than RPi series is the power supply, in fact most SBC works with 5V2A or 5V3A however RPi is very very sensitive to the voltage drop so you can see that any certified RPi power has output of 5.1V instead, this makes most mobile battery / wall plug not working well with RPi (you'll see undervolt warning often), and I don't really observe the same problem on RockChip devices.
Anker has a few power bank equipped with AC power inside (but depends on country you might not find it everywhere, but I saw them selling in US/Japan/Taiwan).
Thanks for the tip on checking the log for undervoltage.
And the jury's still out on the Anker one (They are called "Anker Powercore Fusion"), I believe.
Don't know whether it blips, when you pull the plug, though. This Nanopi is in another installation, airplane flight away.
Thinking of just getting a normal UPS, but space is my issue. Wanted to keep everything neatly in one comms closet.
Another option using 5V 3A UPS module like this
I just buy whatever SanDisk one looks best from the official store. Most advertised are fake, make sure you buy from SanDisk official store or a respected retailer.
I don't think the quality of the SD card causes this issue, But what I was remembering was this issue from ages ago on R2S - NanoPI R2S is a great OpenWrt device - #182 by jayanta525
I'm not sure if that issue is ancient history or if it persists with some SD cards.
I'd advise you to use a regular UPS for power backup if possible and not something with a lithium battery, as for those being charged to 100% all the time is bad. Could even cause issues like swelling and then leakage or more serious issues. I'm using an APC UPS to back up my IT cabinet.
Thanks all for the input.
I am aware of Li-ION battery issues; that small one listed on Ebay seems to have everything needed for safety concerns. Will look into it further.
Eric
I have a small CyberPower Slim UPS that being used to connect my router/WiFi/ISP ONT/NAS etc.....it's not expensive but more reliable than those self built UPS
Hi, I'm using Raspberry Pi 15W USB-C Power Supply, and SP SD cards.
I have never had an issue with manually rebooting my R4S, or with it starting up properly after a power loss running the release version of OpenWrt.
Here are US Amazon links to what I am using if it's helpful.
https://www.amazon.com/Raspberry-Pi-USB-C-Power-Supply/dp/B07W8XHMJZ
Also, plugging it into a UPS is great advice.
Thanks...Have you suffered a quick power loss, that comes back up in less than 5 seconds?
I suggest you try unplugging, and then immediately replugging, to see if box just reboots.
When my power goes down for a longer amount of time, the box reboots with no problem (exactly how long it has to be down, I haven't tested).
I just tested it. I pulled the plug and plugged it right back in. It booted right up and restored connectivity.
ouch ;). That really hurts.
I am going to start by getting that power brick, and replace the one I am using. see how that performs.
Thanks for running the test
E
hello everyone, I'm thinking about buying an r4s, I'm new to the subject and I have a question, as the r4s only has 1 LAN port, I want to connect my notebook to it directly, and so I don't run out of wifi I want to connect an archer c6 v3 on the USB port using a USB 3.0 to Ethernet adapter, do you know if this is possible?
Possible yes. Recommended....?
I've had good and bad experience with USB ethernet. Depends on drivers and manufacturer.
Cheap ones they can rip out the transformer.
Or use a flaky chipset.
Or they all have the same USB ID or MAC address....
I reckon a switch would be cheaper and then you're not trying to bridge in software? edit: archer c6 v3 already has a gigabit switch in it?
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Which switch could you recommend? There are some usb-Ethernet from ugreen on alieexpress, would they be useful without causing me problems?
yes, the c6 v3 has gigabit ports
I'd use the switch built into your archer c6 v3 already? Vlans / trunking?
Regarding switch, depends on whether you want gigabit ethernet, serial console managed/unmanaged (vlans) etc?
Regarding usb ethernet from ugreen. Then we'e talking are they doing any compromises/gotchas from above. Power consumption, chipset drivers etc.
What USB-Ethernet have you used and had no problems, Google Translate doesn't seem to translate all your words, understanding is difficult
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I don't want to use vlans, I just want to use wifi with the c6 v3 connected to the r4s USB
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