A Samsung Galaxy S27 charging speed leak suggests Samsung's next standard flagships won't charge any faster than the ones sold today. Two unannounced Samsung model numbers have appeared in China's 3C certification database with charging profiles that top out at approximately 25W and 45W.
Samsung hasn't announced the Galaxy S27 series, and the certification entries don't use the Galaxy S27 or S27 Plus names. The connection comes from the model numbers and Samsung's usual numbering pattern, so the commercial names remain inferred rather than official.
If a phone purchase hinges on faster charging, this listing alone shouldn't move the needle. It connects two Samsung model numbers to two power profiles and doesn't establish branding, release timing, battery capacity, or real-world charging performance. Samsung's next Galaxy S generation is expected in early 2027, but no launch date has been announced.
What the Galaxy S27 3C certification listing shows
The two Samsung 5G phones appeared in China's 3C database on September 1 with model numbers SM-S9520 and SM-S9560, according to SamMobile. Those numbers are expected to correspond to the Galaxy S27 and Galaxy S27 Plus.
The model believed to be the Galaxy S27, SM-S9520, lists charging profiles of 5V/2A, 9V/1.67A, and 9V/2.77A. The model believed to be the Galaxy S27 Plus, SM-S9560, adds higher profiles including 10V/4.5A and 15V/3A.
At 9V and 2.77A, the first phone reaches about 24.9W. At 15V and 3A, the second reaches 45W.
Those figures match the currently shipping Galaxy S26 and Galaxy S26 Plus. Samsung lists the Galaxy S26 at up to 25W wired charging and the Galaxy S26 Plus at up to 45W.
How the alleged S27 numbers stack up against current Galaxy phones
Here's how the reported figures compare with Samsung's current lineup:
Galaxy S27 (SM-S9520, believed): Up to 25W, based on the 3C listing
Galaxy S27 Plus (SM-S9560, believed): Up to 45W, based on the 3C listing
Galaxy S26: Up to 25W, confirmed by Samsung
Galaxy S26 Plus: Up to 45W, confirmed by Samsung
Galaxy S26 FE: Up to 45W, confirmed by Samsung
Galaxy S26 Ultra: Up to 60W, confirmed by Samsung
That comparison puts the rumored standard Galaxy S27 below the cheaper Galaxy S26 FE on wired charging speed. Samsung's Galaxy S26 FE specifications list 45W wired charging, compared with 25W on the base S26.
The pattern goes back much further than one generation. Samsung has kept the standard Galaxy S model at 25W since the Galaxy S20 introduced that charging ceiling in 2020.
The Plus line has used 45W since the Galaxy S22 Plus in 2022. If the 3C model mapping and charging figures hold, the Galaxy S27 Plus would become the sixth consecutive Plus model with a 45W maximum: S22 Plus, S23 Plus, S24 Plus, S25 Plus, S26 Plus, and S27 Plus.
What the certification doesn't confirm
A certification power profile isn't a full charging test. It doesn't reveal battery capacity, charging time from empty to full, thermal behavior, or how long the phone can sustain its maximum charging rate.
There are also no confirmed battery capacities for the standard Galaxy S27 or Galaxy S27 Plus.
Earlier rumors have focused instead on the Galaxy S27 Ultra and Galaxy S27 Pro. 9to5Google reported a 5,534mAh rated cell for the Ultra, potentially translating to around 5,700mAh to 5,800mAh typical, and a 5,087mAh rated cell for the Pro, potentially around 5,200mAh to 5,300mAh typical.
If the standard S27 or S27 Plus eventually receives a larger battery while keeping the same charging ceiling, that doesn't automatically mean faster or slower full-charge times. Battery capacity, charging curve, heat management, and charging efficiency all affect the result.
Samsung is also rumored to expand silicon-carbon battery technology from its Galaxy Z Fold8 generation into the Galaxy S27 family. That hasn't been confirmed for the base S27 or S27 Plus.
The 3C entries don't establish that every regional version will have identical charging specifications either. Treating SM-S9520 and SM-S9560 as Galaxy S27 hardware remains an inference until Samsung identifies the phones.
No charger listed for Chinese units, other Galaxy S27 charging specs remain unverified
The Chinese certification information reportedly lists a USB Type-C cable without a power adapter for both models, according to NokiaMob.
That doesn't establish what every regional retail package will contain, although it would continue Samsung's current flagship practice. Buyers would need a compatible USB-C power adapter capable of the appropriate charging profile to reach the advertised maximum speed.
Other Galaxy S27 charging rumors concern models not included in these two certification entries.
SamMobile says the Galaxy S27 Pro and Galaxy S27 Ultra are rumored to support up to 60W wired charging. Neither model appears in this particular 3C leak, so those figures remain separate rumors.
Wireless charging is another separate issue. Android Authority reports that the Galaxy S27 family is rumored to introduce built-in magnets for MagSafe-style magnetic attachment.
The charging-speed leak itself doesn't establish faster wireless charging. SamMobile expects the base and Plus models' wireless speeds to remain unchanged. If that proves accurate, the standard S27 would remain at the S26's 15W ceiling and the S27 Plus at the S26 Plus's 20W ceiling.
None of those wireless-charging details come from the 3C filing.
What to watch before the Galaxy S27 launches
The certification is a strong early indication that two upcoming Samsung phones support approximately 25W and 45W charging. What isn't official yet is whether those devices reach stores as the Galaxy S27 and Galaxy S27 Plus with those same final limits.
There's precedent for charging specifications changing before launch. Samsung's eventual Galaxy S26 Ultra reached the market with 60W charging, showing that pre-release certification information shouldn't automatically be treated as the final retail specification months ahead of release.
Anyone buying a Galaxy phone now can compare confirmed specifications instead. The Galaxy S26 supports 25W, the S26 Plus and S26 FE support 45W, and the S26 Ultra supports 60W.
Anyone waiting specifically for the Galaxy S27 should treat 25W and 45W as credible early signals, not locked retail specifications. Samsung still needs to confirm the model names, battery capacities, wired and wireless charging limits, and launch date before the charging picture is complete.
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