EG912/915 PSU from 3V7 LiPoly and battery charger

IoT Modules LTE Standard Module
1

I see that the module work with 3V8 to 4V3 voltage range and my battery is a LiPoly battery from 3V7 to 4V2 voltage range. My problem is when I want to charge the battery and the PSU need to be greater than 4V2.
Do you have a reference design with a battery and a battery charger or is better to connect a DC-DC in the middle from battery and the quectel module?

Thanks.

2

This issue is not within the scope of design reference of the module, I recommend you consult the battery supplier

3

Hi Herbert, my question is: what is the best solution for VBAT of WG912-GL?
I think I have put A B C in order from most professional to least professional

Many thanks.

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4

I am very sorry that I cannot provide relevant help because I am not proficient in hardware

5

Is there no one in Quectel who can help?

6

I suggest you re-launch a new topic in the forum