How to tell if phone is fast charging?

[josexavier]

Just got the G4 last night and I bought a quick charger 2.0, but just wondering if there is a way to know that it is fast charging. Should it say so on the screen? I remember my buddy's Gflex 2 saying it, but mine doesn't.

 

[anon(782252)]

No, the phone won't say anything and in fact the phone doesn't charge to the QC 2.0 spec.

The stock charger will charge the phone at about 1700-1800mA and a QC charger will push that to about 2000 to 2050mA. This is with screen off.

You can download Ampere inn the play store to test.

 

[dpham00]

You can get a charger like the Anker quick charge 2.0 wall charger. I picked one up on Amazon for $11 on sale recently. It will Illuminate a different color when on quick charge 2.0. Keep in mind that it doesn't charge as fast as other quick charge 2.0 compatible devices.

 

[josexavier]

So it doesn't support 2.0? I saw an article that said it did which is why I got the G4 over the S6. I guess I could always get a spare battery though.

 

[anon(782252)]

So it doesn't support 2.0? I saw an article that said it did which is why I got the G4 over the S6. I guess I could always get a spare battery though.

LG's implementation of QC 2.0 just doesn't match Qualcomm's spec.

Looks like LG throttled it down due to heat in order to protect the battery.

The phone charges reasonably fast. I charged earlier from 2% to 42% in 34 minutes. That's about 1.17%/min while Qualcomm lists the spec at 2%/min.

The question is can or will LG tweak it to allow a faster charge with a software update. I guess we will see.

 

[dpham00]

LG's implementation of QC 2.0 just doesn't match Qualcomm's spec.

Looks like LG throttled it down due to heat in order to protect the battery.

The phone charges reasonably fast. I charged earlier from 2% to 42% in 34 minutes. That's about 1.17%/min while Qualcomm lists the spec at 2%/min.

The question is can or will LG tweak it to allow a faster charge with a software update. I guess we will see.

It does use qc 2.0, just not to the same level as other phones currently on the market. Even those phones aren't charging to the maximum qc 2.0 speed allowed. Qc 2.0 doesn't require a minimum charging level.

Sent from my Verizon LG G4

 

[anon(782252)]

It does use qc 2.0, just not to the same level as other phones currently on the market. Even those phones aren't charging to the maximum qc 2.0 speed allowed. Qc 2.0 doesn't require a minimum charging level.

Sent from my Verizon LG G4

Yep, they are hiding behind the fine print and using it as a marketing ploy. Qualcomm should say here is the spec that we use and if you are going to implement it differently on your phone, you need to do your own lab test, with that phone, and state the spec that you will be implementing.

 

[Jonneh]

Yep, they are hiding behind the fine print and using it as a marketing ploy. Qualcomm should say here is the spec that we use and if you are going to implement it differently on your phone, you need to do your own lab test, with that phone, and state the spec that you will be implementing.

Yeah. I'm hoping AC does a piece on this.

 

[pizzaman79]

You guys are forgetting one major difference between regular and quickcharge: quickcharge charges at 9V in stead of 5V. So, the question is if the G4 can charge at 9V.

 

[Mikey47]

The Marshmallow update now tells you if your phone is "fast charging".

 

[20degrees]

I have a moto x pure edition charger and it appears to charge my g4 extremely fast.

 

[ToniCipriani]

The Marshmallow update now tells you if your phone is "fast charging".

Confirmed. Plugged my G4 into an Adaptive Fast Charger bundled with the Galaxy A5 and it shows fast charging. Went from 52% to 75% in under 10 minutes.