So, yesterday I tried out the new board. It works very well, I would say this better than the Pulolo boards. It is also up to slightly hot from little bit hot. But not as hot as in the Pulolo boards.

It charges continuously with 4.85v and 800mA. When the battery arrives at 3.04v, the board stops with the charge. He tried it anyway further boost, but only up to 2.52v, then the discharge protection stopt the charging.

Next step is to integrate a charge protection so that the battery is not more than 3.8 v loaded.