I`ve bought this board: link to shop (Elecrow ESP8266 ESP-12S A9G GSM GPRS+GPS IOT Node V1.0 Module)
Here I`ve read about it: wiki page

I would like to use that board with 1inch screen and send data with GSM. I would like to buy LiPoly rechargeable battery for it. I have quite basic electronic knowledge and I`m not sure what biggest LiPo battery I can buy for it to not burn that development board. Here you can see Wiki that they connected 3.7V LiPoly battery to that board. I would like to recharge the battery without any additional modules. I would like to put a big battery here to have screen and GSM turned on a whole day without charging.

Questions:
1) what maximum voltage battery should have to not burn board?
2) what maximum amperage battery should have to not burn board?
3) may I connect here LiJon battery or only LiPoly?
4) maybe someone has got any experience with this development board? I've bought it instead of Arduino MKR 1400 GSM. I`m not sure if it was the right choice but MKR is a few times more expensive.

Thanks in advance for any help and sorry for this basic question

Cheers!!!

 

Any help?