End of May I purchased a Dlyfull A4.
It have a good readable display, especially before it goes to energy save mode. On the other hand it shows to less details to be considered as overall good display. It shows only some details for one cell, that means it have to switch between different values. IR and charge current, time and charged capacity. After cell inserting or pressing one key the display goes to energy save mode, but is still good readable.
I only charged NiMH so far, so I cannot say how good is it for LiIon charger.
The charge current selecvtion is good IMHO. 200/500/800/1000mA for NiMH. It´s a very good feature to change the current everytime without effort and with no charged capacity reset.
It can also test and discharge in Slot 4, but discharge only with 200/400mA which is even for a NiMH AA low, for LiIon with 5Ah a pain. Dunno what Dlyfull do here, the T5 can discharge 500mA in all slots, even the small and cheap UT1 can do that.
The charger have a good finish, I really like the handling and the nice buttons. One button for the charge/discharge current, one for the mode, one for selecting slots.
If a cell is inserted the charger switch to the slot.
With NiMH I have mixed results. The termination works not good, especially with my AA-cells. TBH, I use mostly problematic cells for my personal test, but other chargers do much better (Vapcell S4 Plus, Opus BT-C3100, Dlyfull T5). The A4 is very problematic here, I stopped 10 AA-cells manually because of temps at 57° Celsius and more, record is 62°.
After around 5 months the charger have a defect slot. It detects no inserted cells and detects and charge if no cell is inserted. The other 3 slots works (still) flawless but it´s annoying that the charger often switches to the defect slot because it´s recognized a cell.
My conclusion is this charger is not to recommend. It seems it´s similar to some MiBoxer-models which have also issues with the slots.