Lithium ion switch to polymer accumulator

[muhammedjan]

Hello everyone
I am currently working on the Barrier project.
The project has a Servo motor mg995.
Esp32
Voice control
2 Lithium batteries
The whole circuit is powered by 5v via a step-down converter.
The problem is that the whole scheme is very heavy. I would like to change the lithium battery to lithium polymer.
Is it possible?

The scheme is like this:
When I want to charge the battery, I turn on the toggle switch. The circuit switches to parallel connection. Power Supply: 3.7V
After charging, I turn off the toggle switch. The circuit switches to serial connection. Power Supply: 7.4V
Question: Instead of two lithium batteries, can I put two polymer batteries. So that he could then charge all the circuit

[muhammedjan]

I'm sorry, I forgot to attach everything
I have one question. Is it possible to charge a lithium polymer battery using a TP4056 board?

[TomGeorge]

Hi, @muhammedjan

What is the "barrier" project.

Google;

difference between charging lithium ion and lithium polymer batteries

Tom...

[muhammedjan]

Open and close the barrier using a servo with voice control