Wall charger question

Forums › Gadgets, robotics, home automation, electronics (including wearables) › Wall charger question

EviLClouD

266 posts

Ultimate Geek

#302129 31-Oct-2022 13:27

Hi there, i’ve just purchased this Momax 30w wall charger
Is someone able to tell me if it’ll be faster charging via usb-a or usb-c or would it charge at the same wattage/speed?
Other chargers i’ve seen list separate wattages depending on connection ie 12w via usb-a and 18w via usb-c to give a total of 30w but i can’t seem to find that info for this charger.
I believe this is the output specs

USB-C output : 5V/ 3A, 9V/ 3A*, 12V/ 2.5A*, 15V/ 2A*,20V/ 1.5A* (30W)
USB-A output : 4.5V/ 5A, 5V/ 4.5A*, 9V/ 2.0A*, 12V/ 1.5A*
Total output : 30W (max.)

Thanks in advance

wellygary

8342 posts

Uber Geek

#2990035 31-Oct-2022 13:42

It depends what you are charging and its peak draw...

But, Based on the numbers given you will only hit 30W using USB-C (12V/ 2.5A*, 15V/ 2A*,20V/ 1.5A)

The most you can pull via USB-A is 22.5W ( 4.5V/ 5A, 5V/ 4.5A*,)

richms

28199 posts

Uber Geek

Trusted

Lifetime subscriber

#2990048 31-Oct-2022 14:31

IME with most of these cheap dual port ones, as soon as you use 2 ports on them the voltage is capped at 5V so you only get the slow speeds from them.

Looks like its only 18W on the USB A port. But it depends on the device what quick charge standards it supports as to which would be faster. I am sticking with USB C only for charge cables now since the 100w car chargers work so well over that.

Richard rich.ms

EviLClouD

266 posts

Ultimate Geek

#2990194 31-Oct-2022 15:34

Thanks for the replies! Its to charge an iphone 14 pro + 13 pro.
So i assume if charging 1 device usb c would be the way to go?
And if charging both at the same time i’d be capped at around 15w per device?
Any recommendations on a usb c charger that allows fast charging for 2 or more devices and won’t break the bank?

Inphinity

2780 posts

Uber Geek

#2990199 31-Oct-2022 15:58

I don't think I've seen a compact wall charger yet that does more than about 20 - 25W on a second port. Some do like 67W to one port, or 45 + 22 to two ports, for example.

Bung

6501 posts

Uber Geek

Subscriber

#2990221 31-Oct-2022 17:13

The usb c port outputs using PD protocol compatible with iphones. Usb a is QC protocol but that is seen by iphone as just basic charger.

neb

11294 posts

Uber Geek

Trusted

Lifetime subscriber

#2990328 31-Oct-2022 21:53

+1 to the above, with USB-C you're getting USB-PD both in the charger and in the device being charged. With USB-A you're getting a bunch of hacks that may or may not match up on the charger and device and may or may not work.

EviLClouD

266 posts

Ultimate Geek

#2990472 1-Nov-2022 09:08

Would something like this be better for charging two iphones at once?
I assume it can deliver both 20w and 30w at the same time based on these specs?
USB-C: 30W PD (5V/3A, 9V/3A, 15V/2A, 20V/1.5A), PPS (3.3-5.9V/3A, 3.3-11V/3A, 3.3-21V/1.5A)
USB-C: 20W PD (5V/3A, 9V/2.22A)

Or should i invest a little more into something like this which can charge one device at 50/60w and the other slightly slower at 18w?

Quic Broadband

Move to New Zealand's best fibre broadband service (affiliate link). Free setup code: R587125ERQ6VE. Note that to use Quic Broadband you must be comfortable with configuring your own router.

Handsomedan

7304 posts

Uber Geek

ID Verified

Trusted

Subscriber

#2990492 1-Nov-2022 10:04

I got one of these, as I didn't find that USB-A was really doing the trick on my last dual-charger.

https://www.belkin.com/dual-usb-c-gan-wall-charger-with-pps-65w/P-WCH013.html

Dual USB-C GaN Wall Charger with PPS 65W, White, hi-res

I find for my iPhone and my iPad charging at the same time, I get good speed and they charge up pretty rapidly.

Handsome Dan Has Spoken.
Handsome Dan needs to stop adding three dots to every sentence...

Handsome Dan does not currently have a side hustle as the mascot for Yale

*Gladly accepting donations...

timmmay

20591 posts

Uber Geek

Trusted

Lifetime subscriber

#2990511 1-Nov-2022 10:43

Our phones here can charge quite quickly on a fast charger, S22 and Pixel 4a. Pixel 4a came with a decent USB-C charger that charges phones twice as fast as the old USB-A charger. We use the old charger most of the time because it's set up and easy to access. There's also some information around that slower charging is better for batteries, though so long as the battery doesn't get too hot or charge in less than an hour it should probably be ok.

EviLClouD

266 posts

Ultimate Geek

#2990805 1-Nov-2022 23:35

Handsomedan:
I got one of these, as I didn't find that USB-A was really doing the trick on my last dual-charger.

https://www.belkin.com/dual-usb-c-gan-wall-charger-with-pps-65w/P-WCH013.html

I find for my iPhone and my iPad charging at the same time, I get good speed and they charge up pretty rapidly.

That one looks good. Do you mind if i ask where you purchased it from and for how much?

Bung

6501 posts

Uber Geek

Subscriber

#2990817 2-Nov-2022 03:22

Is it that important to get 1 charger at probably over twice the price? The Momax is frequently down to about $26 at PBTech.

Inphinity

2780 posts

Uber Geek

#2990877 2-Nov-2022 09:30

EviLClouD:
Handsomedan:

I got one of these, as I didn't find that USB-A was really doing the trick on my last dual-charger.

https://www.belkin.com/dual-usb-c-gan-wall-charger-with-pps-65w/P-WCH013.html

I find for my iPhone and my iPad charging at the same time, I get good speed and they charge up pretty rapidly.

That one looks good. Do you mind if i ask where you purchased it from and for how much?

https://www.pbtech.co.nz/product/TAABEL5607256/Belkin-BoostCharge-65W-Dual-USB-C-GaN-Wall-Charger

Top port is 45W, bottom 20W, when both are in use. Either can do 65W when only one port is in use.