This year, together with the release of the Galaxy S10 5G, Samsung first began using a charger
What is the difference
So, in the experiment used the sameGalaxy A70 with a 4500 mAh battery and 25 and 15 W chargers. In both cases, tested the smartphone with a charge level of 3%. The results were checked three times: 30, 45 and 60 minutes after the start of charging.
After half an hour, charging 25 watts charged the battery by 33%, 15 watts by 26%. After 45 minutes there were 51% and 49%, in an hour - 67% and 60%.
For comparison, they took another Galaxy S10 + with a 4100 mAh battery. Its 15 W charging added 34, 52 and 67% of the charge.
It turns out that the charging speed is not as different as we would like. But it is possible that Samsung itself has limited the speed so that the battery will remain intact and safe for longer.