4.0 out of 5 stars | Not a hassle-free experience, but very inexpensive
I was unable to get 3 out of the 4 batteries to charge using the 4-port charger, right out of the box. Nothing I did would make it work. I inserted the new batteries into the Tello and charged them via the microUSB port, which DID work just fine. I charged all the batteries, drained them all flying around, and then charged them all using the 4-port charger, and this time it worked. I can only infer that the cell voltage was too low for the 4-port charger to detect the batteries, and once charged up by the Tello itself they now seem to work just fine. Therefore for ME this is a pretty good purchase. This is a very good deal on batteries, and they do seem to operate OK after a few days of moderate use, but the charger has technical issues that make it a bad value for a novice. Who the hell would think of charging the battery using the Tello first? I am an engineer, so I have a huge and unfair advantage when dealing with borderline products. I would not suggest this charger for a child, but as I said the batteries ARE a really great deal and they SEEM so far to be pretty damn good.
Reviewed in the United States on September 6, 2020 by Don Stratton
5.0 out of 5 stars | 52 mins MORE Tello flight time!!!!!
Great product! NO issues at all with charger nor batteries. Perfect fit! Marked batteries to properly cycle them. Along with the "TelloFPV" app, a MUST have for Tello pilots!!
Reviewed in the United States on October 25, 2019 by Rene Ferrer Jr.
1.0 out of 5 stars | Non-functional
These did not work properly from the time of receipt. Half the charge lights would change while charging and none of the batteries appeared to have charged properly or worked with our tello drone despite the robotics coach confirming they were the correct battery properly installed.
Reviewed in the United States on September 15, 2020 by M. Black
1.0 out of 5 stars | Unreliable junk. Shameless company
Two of the four batteries don't charge. Waste of money. The middle two in the photo never charge Update: I contacted the company about the issue as it has been only a few months since I purchased this item. But company shamelessly asked me to contact Amazon! It is still under warranty which they don't want to honor. Shame on you.
Reviewed in the United States on August 23, 2020 by Rakesh Gupta
5.0 out of 5 stars | Super fast and reliable charger for Tello Drone batteries.
This charger quickly charges the Tello Drone batteries! Comes complete with USB charging cord. Can be charged in your vehicle or at home. I highly recommend the purchase of this charger!!
Reviewed in the United States on August 2, 2019 by Francis Fry
5.0 out of 5 stars | Good product.
Does exactly what it says it does. Good quality batteries. I get at least 12 minutes of flight time per battery. Would buy again if I didn't have 8 batteries and 2 of these chargers.
Reviewed in the United States on August 1, 2019 by jerimy widener
5.0 out of 5 stars | Nice product
Works well although it is not the same brand that comes with the Tello. In flight tests I am getting the same if not slightly more flight time with these vs the OEM battery
Reviewed in the United States on July 11, 2019 by BRK Ventures
3.0 out of 5 stars | Be ware of this charger
This charger will not charge batteries that come with it till you charge them a little inside the drone! How lame!?
Reviewed in the United States on October 10, 2020 by Name ain't important