can i use this to charge my laptop with a external battery?
931893
Be very careful with using this unit, it does not keep a constant voltage. Mine is about half of what the toggle says. ie I have to put mine at 12 volts to charge my 6 volt radio. At 6 volts it is putting out 2.5 to 3 volts. I would not recommend this one.
931894
If the adapter has the attachment needed and the voltage selector has the amount of power required. it can be used to charge with an external battery.
1568483
Never tried that - but it runs while plugged in to an electrical outlet, so I don't see why it wouldn't run while charging from your laptop.
1560058
If your laptop can be charged with 9 or 12 volts, and it draws no more than 4.5 amps while charging, then yes. However, I'm pretty certain that most laptops require around 18 volts for charging, maybe a chromebook could be charged with this guy, but I would need to check.If you want to post a link to your laptop I could tell you with certainty whether or not you can charge yours with it.
420349
This battery is rated at 4.5 amps according to the description. Generally, matching voltages is more important than matching amperages, but laptops chargers are pretty versatile. My laptop takes 19v/4.5a but it will charge with a 16v/3.5a, though more slowly. Your laptop would most likely work fine with this battery. I haven't seen any external batteries that offer 4.7 amps - 3, 3.5, and 4.5 amps appears to be standard.
1721659
This is 5V charger for USB devices. You can't use this to charge the laptop
1988293
If you have a USB plug, you can use that to charge it. You can also use the computer.
1157375
The external battery will power your laptop the same way your wall-supplied DC power supply does. Even running on an external battery your laptop will try to recharge it's internal battery if it isn't at 100% To get the best out of an external battery either fully charge your internal battery before switching to your external battery or decrease the threshold at which your laptop will try to charge the internal battery. This will ensure that your system runs on the external battery till it's empty without wasting power recharging the internal battery.
2139236
Nope !! I've tried that ! Lol. It only charges the battery and the USB whole plug in . If you want that capability you might as well buy a portable charger. I've boughten 2x 12$ from Amazon already. Great stuff.
809041
The device has a USB connector for charging, you use the cable that came with your cell phone or tablet to charge by USB. A Laptop battery would be too large, I would not expect to get a laptop battery charge through this. If you have a laptop that charges by USB (i do not know of any) , theoretically you could charge with it, even if partial.
787635
You can charge it with either of the provided cords. The smaller end of the cord goes in the actual external battery and the bigger end goes in the wall charger outlet like any other normal USB charger would go into. Hope I helped!
364890
Yes, it should be okay. I use a 5v 1A charger to charge from the wall, as well as my laptop's USB port, and both the approaches have worked well.
1389625
In order to get this unit to work with my hard drive I had to use an external power supply so i would have to think that you would be better off with a direct connection to the computer for charging any device. Hope this helps.
914247
I don't see how that would happen as it is powered by your laptop - no external power. It is a great product and perfect for using your laptop at night. Hope this helps.
1146880
It isn't an external battery. You put the battery in the laptop and connect the laptop power cable.
1148646
Yes, but keep in mind: this is just a wireless charger which at the end does the same as the normal wired charger. Meaning it wont extent the life of your battery yet simply recharge it. On the other hand, the power-pack would work as an external battery, but it wont last the whole day. I use the full bat of my iPhone plus the power-pack, and neither that is enough for the whole day of my. If you do not use it as much as me, you might get it working just good enough.
1147370
From what I see, it only has input for USB, so unless you have a USB to charge your laptop, then no. But you may want to contact the company for additional information.
1412524
I have a external one that is specifically for my phone's battery. But it's cheap and broke after 3 days. I'm considering getting an external wall charger from Anker.