USB Chargers: Pros and Cons

7 posts / 0 new
Last post
superpacker510
Offline
Last seen: 1 week 16 hours ago
Joined: 08/29/2017 - 22:37
Posts: 10
USB Chargers: Pros and Cons

Very new here. From what I’ve seen people either love or hate chargers with USB power supplies. I wanted to learn more about the pros and cons.

I’m interested in the perceived versatility – like being able to plug it into my computer, laptop, or a solar charger, and with only 2 plug adapters (rather than two separate cords) can plug it into a wall outlet or car charger as well.

From what I’ve read, the cons are (1) finding an adequate plug adapter to get sufficient power, (2) li-on charging safety concerns, (3) USB wasn’t intended for a large charging platform.

Any information is helpful.

HKJ
HKJ's picture
Offline
Last seen: 1 hour 43 sec ago
Joined: 05/24/2011 - 12:23
Posts: 5341
Location: Copenhagen, Denmark

1) If you want maximal charge speed it can be tricky, but as a start use my list: http://lygte-info.dk/info/ChargerIndex%20UK.html
2) Not different from any other LiIon charger and you avoid all the mains safety issues with the charger (But have them with the USB power supply instead).
3) Usb has changed over time, to making more power available. In the future you might be able to draw 100 watt from a usb supply, today it is usual in the 10-20 watt range.

My website with reviews of many chargers and batteries (More than 1000): http://lygte-info.dk/

superpacker510
Offline
Last seen: 1 week 16 hours ago
Joined: 08/29/2017 - 22:37
Posts: 10

These pretty much seems to sum things up! But any other thoughts or considerations are welcome (helps me learn).

Truck
Offline
Last seen: 1 week 20 hours ago
Joined: 09/13/2017 - 08:15
Posts: 16

My VC4 has a nice display but is not the fastest charger. has a weird cable too, not standard.

wle
wle's picture
Offline
Last seen: 2 hours 10 min ago
Joined: 01/07/2015 - 13:49
Posts: 496
Location: atlanta ga

surprised someone hasn;t said this – but a CON is “wait time”.

you have to wait for the light to recharge.

If you have a charged cell in the charger, just swap and go.

Of course you can still do this – if you have a charger and spare cell – but then why have USB?

The obvious other CONs are weight, expense, and potential water leakage or damage to the USB port itself (i find it gets clogged with pocket lint, for instance).
Even if it has a plug to cover it up, that becomes something else to fiddle with and break off eventually.

Jack Kellar
Jack Kellar's picture
Offline
Last seen: 1 hour 13 min ago
Joined: 03/09/2014 - 14:21
Posts: 950
Location: Throwing bolts at anomalies

wle wrote:
surprised someone hasn;t said this – but a CON is “wait time”.

you have to wait for the light to recharge.

If you have a charged cell in the charger, just swap and go.

Of course you can still do this – if you have a charger and spare cell – but then why have USB?

The obvious other CONs are weight, expense, and potential water leakage or damage to the USB port itself (i find it gets clogged with pocket lint, for instance).
Even if it has a plug to cover it up, that becomes something else to fiddle with and break off eventually.


Outside of the first point, this is why I’m a fan of the batteries themselves having a USB port for charging. No worries about the host being more fragile.

wle
wle's picture
Offline
Last seen: 2 hours 10 min ago
Joined: 01/07/2015 - 13:49
Posts: 496
Location: atlanta ga

oh
problem with that [charger inside battery] is, it reduces battery capacity, because the charger takes up space inside the battery
the smaller the battery [16340], the more reduction is necessary
plus now it makes each battery cost more, not just one charger, or one light, now it’s X number of batteries, all of which are inferior to batteries without charging built in
just saying

wle