Thanks. Very helpful.
For the benefit of others:
The EA3036C is under $0.15 per unit
The MP2161 is under $0.10 per unit
The SY8089 is under $0.09 per unit
Perhaps luisonoff will be interested in analyzing their efficiency.
Thanks. Very helpful.
Fascinating. I will have a closer look at using LiFePO4 batteries.loboris wrote: ↑Sun Dec 16, 2018 9:48 am
LiFePO4 battery is charged to 3.6V (or 3.65V) and this is within ESP32 voltage range.
You can limit the charger voltage to 3.5 V and the battery will still be charged to 99% - 100% depending on type.
I've used this in a practical project (with the solar charger) for months without any issue.
This is the only powering method where the full battery capacity can be used, without any losses.
Here is an interesting article.
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