[1] it is awesome! it has a cord that is built in and can charge two batteries on the road

[8.4 x 5 x 2.8"] Bought so I could charge while I'm out shooting. Charged at a reasonable speed hooked up to my power bank. Also can charge my LP-E6NH, although a bit slower than my regular LP-E6.

[1] I got this for long backpacking/thru hikes. I use it with a solar panel to charge during the day. Charges okay with full sun. Did what I needed it to do. Cool that I can also use it to charge other items, if needed.

[0.775 lb] I was looking for a charger that I can use to charge via a USB-C port, to take advantage of fast charging using a battery pack while traveling. The Jupio charged a single battery from just 3% charge left, all the way up to 100%, in 2 hours and 38 minutes. After 2 hours the battery was up to 93%, so it took the remaining 38 minutes to charge the extra 7%.

I also have a RavPower charger (no longer available) that uses a micro-USB port for the charger. The micro-USB specification limits the amount of current traveling from the battery to the charger, so it's not as fast. A similarly depleted battery took 3 hours and 20 minutes to charge in the RavPower.

When buying such chargers, pay attention to the current supplied to the battery. I couldn't find many chargers that can supply 8.4V at 1A to a battery as the Jupio does. For example the RavPower is rated at 8.4V and 0.7A, so it charges much slower. The other notable charger that seems to handle 1A is the SmallRig one, but it was not available when I got the Jupio.

Note that charging 2 batteries at the same time will limit the amount of current going to each battery to 0.8A, which means slower charging overall. I have not tried to see how long it takes to charge 2 batteries.

[LCD Display] I bought this along with two additional batteries and it works like a charm! I also use it as a quick check for the remaining charge since it doesn't require external power to do so. It gives a handy percentage remaining figure which is more than my camera can do at a glance. I haven't tried using it to charge a device using camera batteries yet nor have I really stress tested it to ensure it doesn't over charge batteries. However, it seems to be operating well so far.

[1] The LED screen is very useful for seeing battery charge and the integrated usb cable is handy in a pinch, although I tried to just use the input plugs given the flimsiness of the integrated cable.

[0.775 lb] I've use it once. I bought it to take to Africa with to speed up recharging batteries from shooting animals on all day safaris. It seemed a bit slow, but it got both batteries charged. We're on a tent safari so I'm guessing outlets and time to charge batteries might be limited as the tent camps run on generators and battery backups.

[1] Simply put I needed this charger to charge my 5 canon LP-e6 batteries. I love how it tells you the percentage of how charged the battery is.

[0.775 lb] I use along with my own power bank to charge batteries while out shooting. Works for the LP-E6 as well as the new mirrorless H batteries, too.

[8.4 x 5 x 2.8"] Works fast for these batteries