Fast Charge only with included cable?

Darth Mo

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I just got the Note 9 yesterday and Fast Charging only seems to work with the cable that came with the phone. I recently ordered a five pack of AGVEE cables from Amazon which worked fine with my S8+ and Fast Charging. I also have some older cables and they too won't allow the phone to fast charge.

Do I just need higher quality cables or stick to Samsung branded ones? I chose these cables because of the high Amazon rating, but obviously the phone doesn't like them.

Also, this happens with the supplied charger or an older generic one. It will Fast Charge with the Samsung cable and the generic charger, just not with the third party cable.
 

SpookDroid

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That's weird. I've tried mine on an Anker FC Car charger and an LG FastCharge one (with LG's cable) and they both work with Fast Charging. The rest of my cables and chargers are all from previous Samsung phones, so those obviously work.

Have you tried any other cables than the ones you got? Maybe those are just crappy cables... (I assume you're using the phone's original charger and just trying out different cables, right?)
 

Darth Mo

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That's weird. I've tried mine on an Anker FC Car charger and an LG FastCharge one (with LG's cable) and they both work with Fast Charging. The rest of my cables and chargers are all from previous Samsung phones, so those obviously work.

Have you tried any other cables than the ones you got? Maybe those are just crappy cables... (I assume you're using the phone's original charger and just trying out different cables, right?)

Yeah other cables but there are only two different brands, both from Amazon.

Maybe I got some of those dreaded "fake" USB-C cables where they don't have the correct number or gauge conductors and the phone can't pull adequate current.
 

SpookDroid

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Yeah, try brand-name ones or from another phone manufacturer and see if those work. Or try yours with another Note 9 or FC-compatible phone just to rule out that it's not an issue with yours.

Oh, and test this without a case if the USB-C portion of your cable seems thicker than the stock one... maybe it's not going all the way in.
 

Darth Mo

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Yeah, try brand-name ones or from another phone manufacturer and see if those work. Or try yours with another Note 9 or FC-compatible phone just to rule out that it's not an issue with yours.

Oh, and test this without a case if the USB-C portion of your cable seems thicker than the stock one... maybe it's not going all the way in.

Heh, I don't even have a case yet. The new cables worked fine with my S8+ so there may be something going on with this particular handset. I'll have to track down another OEM USB-C cable and do some investigating.
 

Darth Mo

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My "Anker Powerline" cables work with no troubles.

OK, that's one person that can confirm it works with a non-OEM cable. Can you tell me which ones you have exactly?

I tried all 8 "Amazon" cables I have have, none of them will Fast Charge. Though a few of them are pretty beat up, they still Fast Charge the S8+.

Not sure what to do here. If I need to get higher quality cables (the ones I have were like 4 for $14), that's fine, but if the phone itself is just glitchy, I don't want to hang on to a $1000 temperamental unit.

Has anyone else tried it with "cheap" cables?
 

brau0303

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Honestly, I think it's less about the cable and more about the power brick (needs to be a 2a output) I am using the same cable Samsung 2a brick/cable I used with my Note 7's and all works fine. (you do want to be using a quality cable tho)

Cheers,
BR
 

SpookDroid

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Honestly, I think it's less about the cable and more about the power brick (needs to be a 2a output) I am using the same cable Samsung 2a brick/cable I used with my Note 7's and all works fine. (you do want to be using a quality cable tho)

Cheers,
BR

Not exactly... Fast Charging usually does come with a 2A 'standard' (at 5V) cube, but FC is actually 1.67A (at 9V). If the charger doesn't support FC voltage/current, the phone will only charge with standard speeds.

Also, the cable does matter as well, especially with anything after the Note 7. Longer cables, defective ones, or cheap wires can lead to a variance in impedance, and that will throw the charging circuit off on the phone, leading to not 'recognizing' a charger as FC-compatible.
 

Darth Mo

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Honestly, I think it's less about the cable and more about the power brick (needs to be a 2a output) I am using the same cable Samsung 2a brick/cable I used with my Note 7's and all works fine. (you do want to be using a quality cable tho)

Cheers,
BR

I've been trying the Adaptive Fast Charger included with the Note9 as well as the one from my S8+ (same result).

Should have posted this before but trying these cables:

https://www.amazon.com/gp/aw/d/B074...ag=hawk-future-20&ascsubtag=UUacUvbUpU6325197
 

brau0303

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I've been trying the Adaptive Fast Charger included with the Note9 as well as the one from my S8+ (same result).

Should have posted this before but trying these cables:

https://www.amazon.com/gp/aw/d/B074...ag=hawk-future-20&ascsubtag=UUacUvbUpU6325211

Never seen that brand before, so I can't comment. I tend to keep with Samsung cables/bricks or brands that have been vetted as being safe for our devices. especially now that they are 1k+ in cost. Buy high quality components rather than messing up your device to save a few $$

Cheers,
BR
 

brau0303

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Not exactly... Fast Charging usually does come with a 2A 'standard' (at 5V) cube, but FC is actually 1.67A (at 9V). If the charger doesn't support FC voltage/current, the phone will only charge with standard speeds.

Also, the cable does matter as well, especially with anything after the Note 7. Longer cables, defective ones, or cheap wires can lead to a variance in impedance, and that will throw the charging circuit off on the phone, leading to not 'recognizing' a charger as FC-compatible.

All Very Good Points sir.

Cheers,
BR
 

SpookDroid

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Never seen that brand before, so I can't comment. I tend to keep with Samsung cables/bricks or brands that have been vetted as being safe for our devices. especially now that they are 1k+ in cost. Buy high quality components rather than messing up your device to save a few $$

Cheers,
BR

This! +1000
 

CKwik240

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Never seen that brand before, so I can't comment. I tend to keep with Samsung cables/bricks or brands that have been vetted as being safe for our devices. especially now that they are 1k+ in cost. Buy high quality components rather than messing up your device to save a few $$

Cheers,
BR

What exactly do you think will actually happen to your phone from using cheap cables? I can't really think of any damage that would occur from that.
 

j_hansen

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What exactly do you think will actually happen to your phone from using cheap cables? I can't really think of any damage that would occur from that.

Cable melting and starting a fire burning down your house leaving you both homeless and phoneless, besides that I wouldn't worry about anything :)