Curious if anyone here has used one of these, or a similar one, for powering their ESPhome project.
I’m trying one out and once I enter Deep Sleep on the device, the battery shield is going into self-protect mode probably due to the extremely low current draw. I’ve tried both Normal and HOLD modes, Hold mode is the only way I can power on and keep the power on while running, but it stops once the ESP32 goes into Deep Sleep.
That is probably not a good choice for a low power deep sleeping device. The Firebettle 2 has a connection for a li-po single-cell battery pack and is designed for deep-sleeping devices.
If you got yours to not turn off, it would drain the battery quicker. Deep sleep is all about how low you can make the sleeping current draw and then waking up as little as possible.
If hold mode doesn’t do what it is designed for, you should return that shield…
@Karosm is correct that if hold mode is not working you should return the shield, since clearly it is not working the way the documentation says it should.
But, that shield is likely a poor choice for a long-lived battery powered project.
It might be better to start with what your real goal is, why did you buy that shield?
Yes the ones with the little white button are no good for deep sleep. The older version 3 for a single 18650 that have a slide switch are the ones I have found work very well.
4 years ago Adriess Spiess concluded all the battery boards suck and started a project.
Not sure where things are at now.
Yeah. Watched that. Very useful. Also I use MCP73871 battery charger board(no built in battery protection but easy to add to 18650) but it has a power path very useful for solar recharging if occasionaly fully discharges or you just want to put less stress on a cell.
Ahhh, wish I would have dug a little deeper first but at least I can return to Amazon. I’ve been reading about the firebeetle 2 and will likely be ordering one soon.
Powerfeather is another very interesting option.
ah that’s cool! that’s basically what I’m trying to accomplish using this board: Amazon.com: HiLetgo 2pcs CN3065 Mini Solar Lipo Charger Board Lithium Battery Charge Chip Micro USB DIY Outdoor Application Kit Charging Board Module : Patio, Lawn & Garden
Here’s where I landed for a similar project. Works ok but I think it’s probably underpowered - check how many Amps your power supply can do and assess it against your needs.
