Max input amperage supported

[Beppe Gissi]

I can't find this info anywhere, I've tried on Microsoft and specialized sites but found nothing.

What's the maximum amperage per hour the battery of 630 can absorb? The stock charger has an output of 750 mAh, I want to buy a faster one (maybe 1.5 or 2 A), but I don't know if this will make the charge process any faster, because maybe it can only absorb 750 mAh.

Any guess?

 

[Alfa Kapa]

The first 2 months i got the phone, I was using a 2 A charger without any problem..
(after 6 months I don't see any sign of malfunction)

And the best part is that each charge was done stupidly fast compared to the standard charger I use now..
Go for the 2 Amps definitely!

 

[Beppe Gissi]

Thank you, it takes me 3 hours to charge it with the standard charger lol

 

[Alfa Kapa]

I can't remember exactly how much faster it charged with the 2A charger (if i can recall about 50 minutes?),
but I remember the ratio of charging/usage time you get compared to the standard charger was ridiculous!

 

[anon8959613]

The phone will only draw as much power as needed from a charger, regardless of how high the amperage rating is.
By design, the power management chip in your phone won't let the battery accept more current than it can handle.
To be on the safe side and longer life ... for Li ion batteries use a charger with a rating less than that of the battery.
​

 

[rhapdog]

I have a smart charger with 5 USB ports, and can charge up to 2.4A per port, up to a maximum of 10A for all ports. A couple of things I charge use less than 500mA, and one uses only 200mA, so my phone and battery pack get the full charge that they can handle, which I'm not sure what it is.

The smart charger will put out only as much as the device can handle. It also detects how much the device is currently charged, so it will charge it faster until it gets to 90% charged, then slow down the charge to prevent overcharging. When the device reaches 99%, it begins a "trickle-charge" to prevent damage to the battery being charged, so pretty cool to have.

I'm not sure if the phone gets the full 2.4A, because I'd have to put a meter between the phone and the charger, and I really don't know how to splice into a USB cable to do that, and not about to go to that trouble. However, like Alfa Kapa stated concerning the 2A charger, it is WAY faster than the stock charger that comes with the phone, so it can definitely handle more than the stock. I've got a 2.1A car charger for it, and that works great as well.

Charge it faster if you can. A charged phone is a happy phone. My 635 told me so (when I plugged it into my USB 2.0 port on my laptop.)

Which reminds me, if you decide to make it convenient and ever want to charge it with your computer or laptop, use a USB 3.0 port to charge it instead of a USB 2.0 port. You'll send more amperage to it, and it will charge much better. The phone complains it is charging too slow on a USB 2.0 port, but is perfectly happy with the 3.0 port.

 

[anon8959613]

Just imagine this situation .... what happens if a high current is passed through a wire of bigger gauge and smaller gauge ...
the wire of smaller gauge gets heated up ....
if youre gonna use a charger with higher rating youre simply gonna heat up the battery in the short charging period and in due course of continuous charging cycles, may damage the battery
it will get swollen .. you wont even know

 

[xandros9]

the phone isn't going to try to take a stupidly high amount of current.

my 920 has taken 2.1 A, .5 A, it'll work fine.
Heck, it puts out less heat than wireless, which has not been an issue.

A swollen battery isn't hard to notice in a phone with a removable battery.
In a sealed phone, it could be less noticeable, but hey, I don't hear of such an issue often.

 

[rhapdog]

Just imagine this situation .... what happens if a high current is passed through a wire of bigger gauge and smaller gauge ...
the wire of smaller gauge gets heated up ....
if youre gonna use a charger with higher rating youre simply gonna heat up the battery in the short charging period and in due course of continuous charging cycles, may damage the battery
it will get swollen .. you wont even know

That's why I use a smart charger. When hooked up to a smart phone, the phone has circuitry that will notify the charger what it can handle, and the charger will deliver the appropriate amount.

Charging circuitry is a lot smarter than plain copper wires.

 

[Kevin Rush]

That's why I use a smart charger. When hooked up to a smart phone, the phone has circuitry that will notify the charger what it can handle, and the charger will deliver the appropriate amount.

Charging circuitry is a lot smarter than plain copper wires.

re: rhapdog,
You mention a smart charger? May I ask, which one do you use and how did you select it?

 

[rhapdog]

re: rhapdog,
You mention a smart charger? May I ask, which one do you use and how did you select it?

I use Swees? 50 Watts 5V / 10A 5 Port USB Charger Wall Charger with Smart Power Technology.

I selected it by browsing chargers on Amazon, and doing the arduous task of comparing price/features/reviews. I was specifically looking for one that could handle 5 ports, because I had a 4 port that I was using that sometimes just wasn't enough. I checked the number of devices I have, and determined that 5 would be enough, but if I found 6 or 7 for as good a deal that also had what I was looking for, I would not have objected.

There are chargers that support anywhere between one and 10 ports that I located on Amazon. 1, 2, 3, 4, 5, 6, 7, and 10 ports. I don't recall seeing 8 or 9 port options, but perhaps they were there and I missed them. Found a 10 port for $25.99, but it didn't have a high enough total amperage to be able to supply enough power to all the ports.

The one I settled on is able to provide a full 2A to every port simultaneously. Others had only 1 or 2 ports at 2A, and limited the other ports to lower amps. You'll just have to find something to suit the needs you have.