Does this charger need to be connected to a power source all the time or can you carry it in your bag for extra power on the go?
1840924
No. Just you plug it in till it charges. Then carry it like any other power bank. This thing is fantastic. I got one a couple months ago. Qi works great as do the two usb ports. You can't go wrong getting this.
1177850
I can't directly answer your question but I can tell you that it is equipped with a mini USB connector, both for charging the device and for connection to a device to be powered by it.
979067
No, you can just bring the power cord when you travel. That's what I did while gone for 4 or 5 days but didn't ever use the cord due to great battery life.
1671319
If you wish to charge the included battery from an AC power source, you will need an optional power supply
2039466
It comes with a charger , just plug it into ur computer . I keep it charged in my bag all the time , when I'm in need of a charge and I'm not near an outlet , this is the best invention ! It's my secret weapon . Everyone needs this ;)
1797950
unless you have one of those USB Back up battery for when you don't have electricity. You'd still need to plug it into a power source. Doesn't have a stand alone battery.
1795103
I believe you have to especially you will need it powered. Your best bet is to contact anker. They are very friendly and helpful.
98202
I only use it to charge my cellphone i purchase two of them one of them after I used it once the mini usb port came out of the socket I carry it in my back pack have not not use them much
2256709
Does not have to be plugged in all the time. Just after using it and every 30 days. I don't know how much current it uses but you can keep it plugged in and it'll stop charging it once it's fully charged
2081507
there's no need to power it from a vehicle--it has it's own rechargeable battery pack which can be recharged using the included 120vac adapter. Why would you want to plug it into a cigarette lighter?
503192
It must be plugged in to work. It is an inverter, not a portable power pack.
180178
This unit comes with a micro USB cable. You have to plug it in to a USB power source. If the portable power supply has a USB connection, then you are good to go.
425630
The slimport does not have to be connected to a power source. I've used it both on my nexus 7 and nexus 5.
1159536
If you can remember to plug it in an hour a week that would be great (or even once a month). However, some chargers like the Duracell/Xantrex can switch between two levels of charging so when the battery is full it will shift to a trickle charge so to not over charge the battery (this only works for AC charging- not DC). This is why the powerpack will flash the charging light and then go to a steady light when it is full...
1416837
Although the user manual does not say that it needs a power source, it came with a USB cable. I was not sure why, later I noticed that the device has a mini USB port on the side. I had it connect to my Cable box that has a USB port. The device did not work properly (it kept flickering) without using USB cable. It works perfectly now.
1968736
Yes, but then you must maintain the charge by keeping it plugged in or charging it periodically.
1008484
It has to be plugged in for power source. I've tried using the on board memory and powerpoint player, but it is very slow and not worth it, so I utilize wireless or wired video connection from my computer playing through Powerpoint. This is very fast on and off and much lighter than the wireless LG projector(500lumen) that I purchased and returned because it wasn't nearly as functionally bright in a 40 person conference room, and travels like a brick. The ML 750 has a nice small and compact travel kit for everything.