topic Re: Samsung Tab A9+ charging very slowly in Tablets

Samsung Tab A9+ charging very slowly

jacobacci — Mon, 12 Aug 2024 10:49:50 GMT

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?

Re: Samsung Tab A9+ charging very slowly

jacobacci — Fri, 16 Aug 2024 18:15:37 GMT

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.

Re: Samsung Tab A9+ charging very slowly

bibiancho — Sat, 14 Sep 2024 09:23:55 GMT

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

Re: Samsung Tab A9+ charging very slowly

jacobacci — Sat, 14 Sep 2024 11:08:43 GMT

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

Re: Samsung Tab A9+ charging very slowly

Flash stash — Sun, 29 Sep 2024 00:56:30 GMT

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

Re: Samsung Tab A9+ charging very slowly

Upwind3974 — Sat, 12 Oct 2024 04:48:42 GMT

same issue. on latest update.

Re: Samsung Tab A9+ charging very slowly

Members_H9zscin — Mon, 26 May 2025 07:43:42 GMT

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.

Re: Samsung Tab A9+ charging very slowly

orpellicon — Tue, 10 Jun 2025 15:42:29 GMT

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...)..

Re: Samsung Tab A9+ charging very slowly

potsiea — Sat, 21 Jun 2025 05:33:19 GMT

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?

Re: Samsung Tab A9+ charging very slowly

orpellicon — Sat, 21 Jun 2025 10:02:43 GMT

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

Re: Samsung Tab A9+ charging very slowly

faultybattery — Sun, 03 Aug 2025 04:04:40 GMT

I toggled the switch as suggested above, but also had to use a 100 watt cord. I was at 70% battery strength when I tested it and the charging time initally was 90 minutes but dropped to 50 after toggling the switch, rebooting & changing to the 100 watt cord.

Re: Samsung Tab A9+ charging very slowly

potsiea — Sun, 03 Aug 2025 04:17:23 GMT

Have you ascertained whether the fast charging works at this speed when the tablet is turned off? Mine only fast charges when powered on.

Re: Samsung Tab A9+ charging very slowly

faultybattery — Sun, 03 Aug 2025 12:33:31 GMT

Hi! No I did not have a chance to test that yet. I will try to test it later today and let you know.