Acer Predator PHN16-71 is showing "weak charging state even when I am using a 140W USB-C charger?
I have Acer Predator Helios Neo 16 (PHN16-71) and I have considered using a USB-C charger whenever I am going out to work with my laptop since bringing the power bricks seems too much of a hassle. I read that it is possible to do so since this laptop has two USB-C ports and supports Thunderbolt 4, which in turn supports a maximum of 100W charging.
So I bought a UGreen Nexode 140W PD charger to use for the laptop, paired with its 240W PD cord. However, Windows notifies me that I have a "weak charging state" every time I charge my device using USB-C.
Upon checking on the hardware specifications configuration of the laptop, it says that USB-C only supports up to 65W charging.
Upon checking on the wattage, it states that it charges at approximately 56-59W.
So I am confused an I have a couple of questions.
- Does the laptop really have a maximum of 65W charging rate when using a USB-C charger, and not the 100W max of the Thunderbolt Port?
- Is this "weak charging state" bad for the battery and life of the laptop and of the laptop in general or not?
Thanks in advance! Thank you for your patience and answers.
[Edited the thread to add model name to the title]
Answers
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That is not the 90-Watt USB-C I recommended to buy (see link). Thunderbolt supports up to 100 watt power. I am using a 90-watt USB-C charger for my 2023 OLED laptop. Ignore the 65-Watt guidelines from Acer as that is for a charged battery, it won't be able to charge a depleted battery. https://us.v-cdn.net/6029997/uploads/4F6V4VY5KWJ2/image.png
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Yes I understand that this is not the charger that you recommended to buy, but I opted for another kind of charger (which goes up to 140W max). I think the wattage power is enough to charge the laptop and is comparable to those you recommended. I would like to ask if is this "weak charging state" bad for the battery and life of the laptop and of the laptop in general or not? Thanks!
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You are far over the capacity of what Thunderbolt4 supports, you can brick your laptop doing that. 😶
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Oh. No. 140W is the max overall output of the charger, but one of the ports has a max of 100W only and that is what I am using to charge. Will this be okay?
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No it is not OK as that device is unable to charge your battery. I have given you the link for the best 2023 tested by ZDNET laptop chargers but you still opted to buy a completely different type. Get one from that link, preferably 90-Watt.
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Came across this trying to find a way to see what wattage my PH16-71 was drawing from the USB4/TB4 port. Wanted to leave this here for future generations. :)
This is not how PD works. PD is a separate specification implemented on both USBC and TB3+ systems. PD actively negotiates what power is delivered. If you have a 60w cable and a 140w brick and a 90w laptop, only 60w will be negotiated and delivered. Pretty much need to buy 100w cables for use with 65w and 90w devices.
Even in old school AC adapters, the power is not pushed from the adapter, it is pulled from the laptop. As long as the voltage is in the right range, and you're not trying to pull more amps than the adapter can provide, you're good.
As a sysadmin, I've had to looking up compatible power supplies for my work systems on MFG websites (Dell, Lenovo, HP) and invariably I can get recommendations for 65w/90w/130w AC adapters for systems that shipped with 45w and 65w. (I rarely found 45w replacements)
I've also used had left-over power supplies from retired laptops, docks, and micro form factor desktops when users lose their stock 45w/65w chargers. Never had any issues across every laptop OEM. (e.g., HP, Dell, Gateway, Lenovo, Acer, Toshiba, Sony, etc…)
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Thanks a lot for this clarification. I'd like to ask if how much power does the PH16-71 draw out from the outlet when using the USB-C, is it really limited to just 65W? Thanks a lot!
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