“Does as expected - provides 5v to drive the pi from 3.7 volts off a lipo, and one can un plug it, plug it into a 5v usb socket and charge the lipo. The indicator that the battery is charged is that the charging LED flickers - I would have made the green LED pulse with a duty cycle proportional to the charge (fully on being fully charged)
I can't tell if I can charge at the same time as drawing current. I have tried this and it seems to work but I can't tell if the battery is actually charging unless I plug in an amp meter.”
“This is the best, smallest and cheapest thing I've found to power raspberry pi(s) for little projects. It will power every pi up to a raspberry pi 4, although I think Pi4 is a bit pushing it, depending on what periferals you've for attached. The integrated charger is really convenient. I've used it in my cyberdeck.”
“It's ok when the DC plug is inserted and it charges battery's and powers the pi at the same time. However just on battery only the pi doesn't boot up, however if the pi was already booted up and you switch to battery it's powers fine (I tested this with 2 fully charged 18650 cells). So overall not good if your relying on using battery to run your pi project, but ok as a ups if you mainly rely on DC power and there is a temporary power but. I have a pi 3b with normal raspbian os”
“This is a really great chip and provides more power than the equally excellent AdaFruit Powerboost. It charges a LiPo battery quickly and has two LEDs to show when it’s boosting or charging. It has trouble powering a Raspberry Pi 4 without low voltage
warnings, but that’s to be expected as the Pi 4 has quite steep amperage requirements.”
“I'll take back the the good review of this module.
I've had it on long-term on-load test and battery protection is nil.
I had been logging the battery voltage which had been holding up well with a 2000-mAhr Lipo drawing a 6-mA load with a slow drop in battery voltage and a last reading of about 3.6-volts.
Suddenly dropped to zero volts, so no discharge protection on this module.
Won't be buying any more”
“This is exactly as described and fits perfectly what I need.
I am custom building a Pi zero powered project and needed a way to maintain runtime in case of a power failure, and this does just that (when coupled to a lipo battery)
The led feedback on board lets you know exactly what the board is doing, and the connectors are a good and secure fit.
The only thing this board doesn't provide is a battery health output but as this isn't required in my project I'll be getting more of these for future builds for sure.”
