phillynews215
12-31-2025, 12:33 PM
https://www.androidauthority.com/wp-content/uploads/2025/01/Samsung-Galaxy-S25-Ultra-S-Pen-and-USB-C-port.jpgCredit: Ryan Haines / Android Authority
TL;DR
Samsung’s battery division has apparently tested a 20,000mAh silicon-carbon battery.
The dual-cell battery reportedly developed swelling by the end of the test.
The news comes as Chinese manufacturers offer phones with 7,000mAh to 10,000mAh batteries.
We’ve seen flagship Android phones (https://www.androidauthority.com/best-android-phone-3563254/) with 7,000mAh+ batteries in the last few months, while HONOR has just launched phones with 10,000mAh batteries as well. Now, a leaker has alleged that Samsung is testing a 20,000mAh silicon-carbon battery (https://www.androidauthority.com/silicon-carbon-batteries-explained-3534045/).
Tipster phonefuturist (https://x.com/phonefuturist/status/2004114854081450231) claimed on Twitter that Samsung SDI has tested a dual-cell silicon-carbon battery with a total capacity of 20,000mAh (h/t: Android Headlines (https://www.androidheadlines.com/2025/12/samsung-sdi-reportedly-testing-wild-20000mah-silicon-carbon-battery-for-future-phones.html)). The first cell is said to be a 12,000mAh battery while the second cell is apparently an 8,000mAh battery.
More... (https://www.androidauthority.com/samsung-20000mah-battery-3628799/)
TL;DR
Samsung’s battery division has apparently tested a 20,000mAh silicon-carbon battery.
The dual-cell battery reportedly developed swelling by the end of the test.
The news comes as Chinese manufacturers offer phones with 7,000mAh to 10,000mAh batteries.
We’ve seen flagship Android phones (https://www.androidauthority.com/best-android-phone-3563254/) with 7,000mAh+ batteries in the last few months, while HONOR has just launched phones with 10,000mAh batteries as well. Now, a leaker has alleged that Samsung is testing a 20,000mAh silicon-carbon battery (https://www.androidauthority.com/silicon-carbon-batteries-explained-3534045/).
Tipster phonefuturist (https://x.com/phonefuturist/status/2004114854081450231) claimed on Twitter that Samsung SDI has tested a dual-cell silicon-carbon battery with a total capacity of 20,000mAh (h/t: Android Headlines (https://www.androidheadlines.com/2025/12/samsung-sdi-reportedly-testing-wild-20000mah-silicon-carbon-battery-for-future-phones.html)). The first cell is said to be a 12,000mAh battery while the second cell is apparently an 8,000mAh battery.
More... (https://www.androidauthority.com/samsung-20000mah-battery-3628799/)