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I have been using Mi powerbank 2i for my Rpis for last 9 months or so. I have had zero issues with it. The advantage of using 2i are, 1. It's dirt cheap than a

I have been using Mi powerbank 2i for my Rpis for last 9 months or so. I have had zero issues with it. The advantage of using 2i are, 1. It's dirt cheap than any other solution I found($15, I use 10k mah version) 2. I can plug RPi to it and I can plugin a charger in 2i. When the main power cuts off, It'll instantly switch over to battery with 0 downtime. I think this is called passthrough charging) 3. It can provide 2.5 or 3.5 amps(not sure about exact value) output 4. It has two ports

clanrebornyes 8y ago
How many hours it lasts?
- ishanjain28 8y ago
  I have never measured it. At worst the main power has gone down for a 2-3 hours and it lasted at least as much. I don't have a USB power meter to measure the power taken by the Rpi so I can not give you an exact number but I would guess it to be at least around 5-10 hours if not more. Edit: Someone linked pijuice project. I went to their website and according to them, Their 10k mah version lasts 24+ hours > Onboard 1820 mAh off the shelf Lipo / LiIon battery for ~4 to 6 hours in constant use! (with support for larger Lipo Battery of 5000 or 10,000 mAH+ to last up to 24 hrs +) https://uk.pi-supply.com/products/pijuice-standard https://uk.pi-supply.com/products/pijuice-standard So, I would say 2i would probably last about the same?
thinkmassive 8y ago
> 2. I can plug RPi to it and I can plugin a charger in 2i. When the main power cuts off, It'll instantly switch over to battery with 0 downtime. I think this is called passthrough charging) This alone is a killer feature that’s far less common than I expected before I started searching for it. Most power banks cut off output while they’re charging, and many require physically re-plugging the device to start powering it again. I ended up acquiring a PiJuice for this functionality alone. https://github.com/PiSupply/PiJuice https://github.com/PiSupply/PiJuice

clanrebornyes 8y ago

How many hours it lasts?

ishanjain28 8y ago
I have never measured it. At worst the main power has gone down for a 2-3 hours and it lasted at least as much. I don't have a USB power meter to measure the power taken by the Rpi so I can not give you an exact number but I would guess it to be at least around 5-10 hours if not more. Edit: Someone linked pijuice project. I went to their website and according to them, Their 10k mah version lasts 24+ hours > Onboard 1820 mAh off the shelf Lipo / LiIon battery for ~4 to 6 hours in constant use! (with support for larger Lipo Battery of 5000 or 10,000 mAH+ to last up to 24 hrs +) https://uk.pi-supply.com/products/pijuice-standard https://uk.pi-supply.com/products/pijuice-standard So, I would say 2i would probably last about the same?

thinkmassive 8y ago

> 2. I can plug RPi to it and I can plugin a charger in 2i. When the main power cuts off, It'll instantly switch over to battery with 0 downtime. I think this is called passthrough charging) This alone is a killer feature that’s far less common than I expected before I started searching for it. Most power banks cut off output while they’re charging, and many require physically re-plugging the device to start powering it again. I ended up acquiring a PiJuice for this functionality alone. https://github.com/PiSupply/PiJuice https://github.com/PiSupply/PiJuice