
In general, charging is normal, if you look at it only in charging, there are many minuses in everything else. The screen does not always show the correct battery percentage. Each time it shows differently, if you pull out and reinsert the battery, it will be a completely different number. Also, 2A charging is used only on one socket when charging only one battery. When charging two batteries, only 1A is used, while when charging three or four batteries, only 0.5A each is used. I would advise you to look at other chargers, for the money you can find better ones.

Efficient Charging With LST 7 Stages 5A Battery Charger - 3.3A 12V For Ultimate Performance
35 Review

70mai Jump Starter Max Midrive PS06 black
37 Review

Charger Vympel 57 black
110 Review

Case Compatible With Halo Bolt Portable Car Battery Jump Starter 58830/44400/57720 MWh Charger. Power Bank Holder For Halo Power Station 100/For AC Outlet.(Not Fits For Halo Bolt Air, Box Only)
24 Review