Samsung Tab A9+ charging very slowly

[jacobacci]

I am charging my Samsung Tab A9+ with an Anker PD 65W charger. This charger works on a Samsung S7+ in 25W Super Fast Charging Mode.

However charging on the Tab A9+, charging is very slow, no matter whether I turn on fast charging in settings or not. I connected a measuring dongle and it shows 5W (5V/1A) instead of the 15W that tablet is supposed to be capable of.

Am I missing something here?

[jacobacci · Accepted solution]

I figured out that I need to toggle fast charging off and on and then fast charging works with 15W. This seems to be a SW fault in the Samsung OS.

[bibiancho]

Go to settings, battery, charging settings and activate fast charging option. That's it.

[jacobacci]

Hello @bibiancho 

Unfortunately the fast charging setting does not stay in place after a restart, even if the switch in settings is turned on. I then have to toggle the switch off and back on to re-enable fast charging behaviour.

This really looks like a bug

[Flash stash]

Yeah I've been having this exact same problem, with fast charging enabled in settings, it defaults to slow charging. I have to disable and re-enable fast charging everytime I plug in a cord. Really hoping it gets fixed in a software update soon

[Upwind3974]

same issue. on latest update. 

[Members_H9zscin]

Mine started not charging when switched off when I got the One UI 7 Android 15 update. I tried everything, then swapped to a 45-watt charger, and now it charges when switched off as well. I don't know why because the 25-watt charger and cable I have work with the S23 Ultra and the Tab A7, which also supports 15-watt charging.

[orpellicon]

i have the same problem. Updated to Android 15, One UI 7 :  charge with 25 W non possible. Charge only very slow with charger 10W (6 - 7 hours...)..

[potsiea]

Same problem with Android 15 UI7. Does the toggle on and off of fast charging still work, or do i need to leave it on when charging?

[orpellicon]

Works well with SAMSUNG charger 15W. Charge fast, 2 hours from 20% to 100%. I think this is a problem of U.I  7.0. 

I habe seen an other cellular Samsung S22 or S23 with the same problem, then changed charger and works well