honestly really capable for the price, it just has some minor issue that are literary just firmware related.... for example... to get an actual internal resistance measurement of a battery is kind of a pain... or that the actual power supply mode disables everything else... and it's range is only 1-5A .... which is like... questionable af when the charger offers 20A per port..... + like... the charging does support lower current settings... than that... so I have no idea why the min. current is so high and max current so low... don't expect the app to be actually working..... tho that's about all the complains I have.... the fact is it's still a really cheap and small 8S dual channel AC/DC charger.... with quite the specs for it's price
EDIT: well ... there are more than few things that need repair... for example it's preaty much impossible to charge a 1S battery from them.... since they overshoot the voltage to like 5-6V and then emerygency stop the charging...... which could be easly solved by having it take a lot less agressive aproach ....