Samsung Galaxy Tab S9 FE Battery + Charging Review!

Take a look at the battery recharging speed of the Samsung Galaxy Tab S9 FE, and find out how its two refresh rate options affect battery life!

 

Samsung Galaxy Tab S9 FE : Two Refresh Rate Options!

The Samsung Galaxy Tab S9 FE offers two refresh rate options (Settings > Display > Motion smoothness) for its display:

  • Adaptive : Get smoother animation and scrolling by automatically adjusting your screen refresh rate up to 90 Hz
  • Standard : Get longer battery life with a 60 Hz screen refresh rate

By default, the Galaxy Tab S9 FE uses the Adaptive mode for smoother graphics, but you can choose to switch to the Standard mode for a longer battery life.

On investigation, I found that the Galaxy Tab S9 FE’s display has three fixed refresh rates, switching between 30 Hz, 60 Hz and 90 Hz, when set to the Adaptive mode.

In the next section, we will look at how the two refresh rate options affect the Galaxy Tab S9 FE’s battery life.

Recommended : Samsung Galaxy S23 FE Unboxing + First Impressions!

 

Samsung Galaxy Tab S9 FE Battery Life Comparison!

The Samsung Galaxy Tab S9 FE comes with a large 8,000 mAh battery, which supports 45 watt super fast charging. It even supports 15 watt reverse fast charging. However, it does not come with any bundled charger, and the bundled USB cable can only support 25 watt fast charging.

To test its battery life, we turned off Automatic Brightness, fix the brightness level, and make sure the screen brightness does not change as the ambient brightness changes. We also set its display brightness to 50%, which is slightly higher than the average indoor brightness level of 40% during the day.

We then ran the PCMark Work 3.0 battery life test until its battery capacity dropped to 20% several times, and this was the best result we obtained with the Standard and Adaptive refresh rates :

Not bad! The Galaxy Tab S9 FE lasted almost 10 hours on the Standard refresh rate, and just over 9 hours on the Adaptive refresh rate.

With such results, it makes sense to just leave the Tab S9 FE on its default setting of Adaptive refresh. After all, it only saps its battery life by 8% (46 minutes).

Let’s compare its battery life against the Galaxy Tab S7 Plus and Galaxy S8 Ultra tablets.

Standard Refresh Rate (60 Hz)

This Fan Edition tablet delivered the best battery life with the Standard refresh rate of 60 Hz.

Thanks to its power-efficient Exynos 1380 processor and smaller display, it sips power compared to the other two larger and more powerful tablets.

Work 3.0 Tab S9 FE
(60 Hz)
Tab S7 Plus
(60 Hz)
Tab S8 Ultra
(60 Hz)
Display Size 10.9-inch 12.4-inch 14.6-inch
Battery Capacity 8,000 mAh 10,090 mAh 11,200 mAh
Battery Life 9 hrs
49 mins
7 hrs 55 mins 8 hrs 3 mins
Utilisation
per min.
10.87 mAh 16.99 mAh 18.55 mAh

Adaptive Refresh Rate (90 Hz / 120 Hz)

Switching on the Adaptive refresh rate allowed the display to switch between 30 Hz, 60 Hz and 90 Hz, and only cut down its battery life by 46 minutes (8%).

But as my evaluation shows – the Galaxy Tab S9 FE uses considerably less power than the two larger and more powerful tablets. In fact, it uses just over half as much as the Galaxy Tab S8 Ultra!

Work 3.0 Tab S9 FE
(90 Hz)
Tab S7 Plus
(120 Hz)
Tab S8 Ultra
(120 Hz)
Display Size 10.9-inch 12.4-inch 14.6-inch
Battery Capacity 8,000 mAh 10,090 mAh 11,200 mAh
Battery Life 9 hrs
3 mins
6 hrs
11 mins
6 hrs
38 mins
Utilisation
per min.
11.79 mAh 21.76 mAh 22.51 mAh

 

Samsung Galaxy Tab S9 FE Battery Recharging Speed!

The Samsung Galaxy Tab S9 FE supports up to 45 watts of wired fast charging. However, it does not come with any bundled charger, and the bundled USB cable can only support 25 watt fast charging.

So we tested it using the standard 15 watt and 25 watt Samsung fast chargers that shipped with their previous smartphones, which is what we believe most users will end up doing.

Recharging Speed Tab S8 Ultra Tab S7 Plus Tab S9 FE
(25W)
Tab S9 FE
(15W)
Display Size 14.6-inch 12.4-inch 10.9-inch 10.9-inch
Battery Capacity 11,200 mAh 10,090 mAh 8,000 mAh 8,000 mAh
Charger Output 15 watts 15 watts 25 watts 15 watts
Battery Life 86.5 mins 86 mins 90.5 mins 145.5 mins
Recharging Speed
(per minute)
103.6 mAh 93.9 mAh 70.7 mAh 44.0 mAh

Well, isn’t that interesting? Even with a more powerful 25W super fast charger, the Galaxy Tab S9 FE recharges slower than the Tab S7 Plus or the Galaxy Tab S8 Ultra using the standard 15W charger!!

The 15W charger took almost 2.5 hours to fully recharge its 8,000 mAh battery from 20% to 100%. Upgrading to the 25W charger cut that down to just 1.5 hours, shaving off almost a full hour. The good news is that the Galaxy Tab S9 FE sips power, so you won’t need to recharge it quite so often.

If possible, you should purchase the optional 25 watt USB-C super fast charger. It will cut your charging time by almost an hour, and give you an hour of battery life for every 9.5 minutes you recharge:

 

Samsung Galaxy Tab S9 FE : Price + Availability

This Fan Edition tablet comes with colour options of Mint, Lavender, Gray and Silver. It comes with two RAM and storage options:

  • 6 GB + 128 GB
  • 8 GB + 256 GB

These are the available models and launch prices:

  • 6 GB + 128 GB : US$449.99 / £549 / A$749 / RM2,099
  • 8 GB + 256 GB : US$519.99 / £619 / A$899 / RM2,399

Here are some online per-order and purchase options:

 

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Dr. Adrian Wong has been writing about tech and science since 1997, even publishing a book with Prentice Hall called Breaking Through The BIOS Barrier (ISBN 978-0131455368) while in medical school.

He continues to devote countless hours every day writing about tech, medicine and science, in his pursuit of facts in a post-truth world.

 

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