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crispyswinger1
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65w Charger EliteBook 840 G4

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EliteBook 840 G4
Microsoft Windows 10 (64-bit)

Hiya 🙂

 

I have the EliteBook 840 G4 which came with a 45w charger, I also have a HP Travel Charger which clocks ina t 65w...Does anyone know if it's safe to charge the laptop with this 65w charger? I assume the laptop won't take more than it can handle?

 

I did ask HP but they didn't really answer the question all that well, simply said it's fine to use as long as I unplug it every few hours...which is fine...but it makes me think that the charger could damage my laptop and isn't built to be used with the 65w charger.

 

Cheers

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ju1c3
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It's fine to do. 

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IT_WinSec
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Hi @crispyswinger1

 

It cannot damage your computer, it will even charge it faster than the 45w one

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*** I work for HP *** I express personal opinion only *** HP Expert - Volunteer since 2013
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crispyswinger1
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@IT_WinSec wrote:

Hi @crispyswinger1

 

It cannot damage your computer, it will even charge it faster than the 45w one


Thanks for the reply 🙂 Is this just a general rule of thumb that higher wattage chargers can charge laptops that came with a lower wattage charger? Or is there some documentation from HP somewhere?

 

Thanks

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REO51ST
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@crispyswinger1

 

On older AC's a higher Wattage could charge the battery faster but not with SMART AC adaptors.

 

SMART AC's use the center pin to communicate with the CPU to charge the battery.

 

IMG_4901#2.jpg

 

Older AC's used brute force charging.

 

SMART AC's use a more regulated charge.

 

So the speed of charge is governed by the AC and laptop.

 

REO

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crispyswinger1
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@REO51ST wrote:

@crispyswinger1

 

On older AC's a higher Wattage could charge the battery faster but not with SMART AC adaptors.

 

SMART AC's use the center pin to communicate with the CPU to charge the battery.

 

IMG_4901#2.jpg

 

Older AC's used brute force charging.

 

SMART AC's use a more regulated charge.

 

So the speed of charge is governed by the AC and laptop.

 

REO


Hey 🙂

 

Thanks for the info! However, you mentioned "Smart Chargers"...that's this type of charger isn't it:

 

https://store.hp.com/UKStore/Merch/Product.aspx?id=H6Y89AA&opt=ABU&sel=ACC

 

I however don't have that type of 65w charger, I have the standard 65w travel charger:

 

https://store.hp.com/UKStore/Merch/Product.aspx?id=G6H47AA&opt=ABU&sel=ACC

 

But the above one (which I own) does reference "smart pin charging technology".

 

Does this mean that my travel charger carries the required pin which ensures it safely (and "smartly") charges the laptop and that I wouldn't do any damage to the laptop?

 

Cheers

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