topic Re: S Pen Battery Drain? in Tablets

S Pen Battery Drain?

eggfriedrice — Sat, 21 May 2022 11:03:26 GMT

Recently bought the Tab S7+ and it's working great, had a question about the S Pen. The battery seems to drain when not in use (like if I just leave it on my table), is this normal? Surely it should turn itself off to save battery, is there a setting for this?

Re: S Pen Battery Drain?

Glenntech — Sat, 21 May 2022 11:19:53 GMT

The S Pen if I'm correct. Uses a capacitor to store a charge.
So that's why it can take on charge so quickly.
So with it's low energy Bluetooth functionality, it will dissipate the charge over a period of time.
Using what they call a super capacitor. It's lighter than a conventional battery and makes the S Pen easier to use.
Also the upside of capacitors is they take on a charge very rapidly

Re: Re: S Pen Battery Drain?

eggfriedrice — Sat, 21 May 2022 14:45:53 GMT

Thanks for the reply, that makes sense. Just looked into it and it seems like this is better than a battery for the S pen.

Re: S Pen Battery Drain?

JAMES4578 — Sat, 21 May 2022 19:31:26 GMT

Modern S Pens do get their power from a super capicator rather than lithium-ion batteries, which Apple and Microsoft use. A bit about the latest S Pen features for Tab S7/S7 Plus https://www.techradar.com/uk/news/samsungs-galaxy-tab-s7-update-brings-even-better-s-pen-features-to-the-tablet

Re: S Pen Battery Drain?

Members_fSS7FjT — Thu, 08 Feb 2024 17:02:21 GMT

So what is the solution?

Re: S Pen Battery Drain?

Members_2RtpZFK — Thu, 06 Feb 2025 10:44:00 GMT

Hey I have a Tab S6 that I've been using for over 4 years by now. I notice the battery (or super capacitor) of the S Pen loses its full charge in shorter periods of time. I will deactivate air actions to see if there is an improvement. But it used to last for at least 2 hours after detached from the Tab. Of course it charges very fast, but now the need to recharge is more and more frequent.