AC input charger or USB charger?

5 posts / 0 new
Last post
xtarflashlight
xtarflashlight's picture
Offline
Last seen: 1 day 23 hours ago
Joined: 01/21/2013 - 21:25
Posts: 89
Location: Shenzhen
AC input charger or USB charger?

We know there are two common types of chargers’ input port – AC and USB. The charger with AC input port, is very convenient to use indoors just by connecting its own power cord to the wall outlet, no more extra adapter. As for the charger with USB input port, it’s much easier to carry outside and can connect solar panels, power banks with USB cables and your phone adapter, which is more suitable for outdoors charging. So do you prefer charger with AC input port or USB input port? Or prefer a charger with both AC and USB port like XTAR X2 X4 extended version?

X2-X4-extended-version

Edited by: xtarflashlight on 10/18/2020 - 21:22
YuvalS
YuvalS's picture
Offline
Last seen: 1 day 5 hours ago
Joined: 09/26/2018 - 10:39
Posts: 270

If the USB input can support the same power level as AC adapter, I defiantly prefer USB but I don't think it can.  

Henk4U2
Henk4U2's picture
Offline
Last seen: 7 hours 7 min ago
Joined: 02/13/2014 - 17:52
Posts: 3636
Location: The heart of the Netherlands (GMT+1)

Owning a few chargers of both types, I personally have no preference.
Well, the USB chargers are a bit easier to grab. And there’s one in my car, of course.

But if I want to charge four batteries at the same time, and I am in e bit of a hurry.
Then I will need more than 0.5A per bay, and that is no easy task for an USB charger.

So for topping up my ECD rotation: USB
Multi battery lights and/or in a hurry: AC

You are a flashaholic if you are forced to come out of the closet, to make room for more flashlights.

xtarflashlight
xtarflashlight's picture
Offline
Last seen: 1 day 23 hours ago
Joined: 01/21/2013 - 21:25
Posts: 89
Location: Shenzhen

Henk4U2 wrote:
Owning a few chargers of both types, I personally have no preference.
Well, the USB chargers are a bit easier to grab. And there’s one in my car, of course.

But if I want to charge four batteries at the same time, and I am in e bit of a hurry.
Then I will need more than 0.5A per bay, and that is no easy task for an USB charger.

So for topping up my ECD rotation: USB
Multi battery lights and/or in a hurry: AC

Yeah, we agree with it. Smile

TheIntruder
Offline
Last seen: 1 day 4 hours ago
Joined: 03/09/2018 - 02:11
Posts: 197

Depends on the application.

QC and USB PD are more than capable of powering high current chargers, and as they become even more prevalent, should supplant the legacy USB standards limited to 12-15W maximum.

AC is good for stationary applications, and an IEC C7/C8 (“figure-8”) input is common, so it is preferable over yet another wall wart with a barrel, or other connector.

Many multi-port USB desktop chargers use the figure-8, so one cord can serve both, and make it easy to swap between the two as needed.

All these common standards enable a great deal of versatility, according to need and preference; they only need to be employed in lieu of less common, or worse, proprietary solutions.