BTG 3.7V 630mAh Upgrade Battery 3PCS and 4in1 Parallel Multi Battery Charger for Parrot MiniDrones Jumping Sumo MiniDrones Rolling Spider

Summary: Pretty good deal on 3 batteries plus a nice charger, specific to the Parrot MinidronesPros:- Comes with a charger that recharges 4 batteries at once- Comes with three batteries, so in addition to the one you already have, it will charge all 4 at once- Batteries have similar run-time as the originalCons:- No power cord included- One of my batteries is difficult to charge (see below)- Batteries go from "Low" to "Critical" about 15 seconds fasterReview:I purchased this for my Parrot Rolling Spider Drone because it only came with one battery that lasts about 8 minutes. The official "Parrot" battery and external charger is $30 (see below for link). For about $7 more, you get three batteries and a charger that holds four at once.When the product arrived, it was in a sealed plastic bag (see first picture). The batteries were a perfect fit for the drone and my original battery fit in the charger just fine (see second picture with red lights -- the "Parrot" battery is the first one). They did not include a charger brick or cord, but any micro USB charger cable will work. From completely discharged, it takes about 2 hours (using a 1.0 A charger & cord). Using a better charger would make it recharge quicker. When the batteries are inserted and the power turned on, the lights glow red. When they are fully charged, the lights turn green (see last picture).For me, I have one battery that is difficult to charge. To get it to charge, I have to plug in the charger without any batteries, and insert the offending battery first (any slot) followed by the other three. I'm going to contact Amazon (and/or the seller) to see about getting a single battery replacement. Will update this review with the resolution (if any).UPDATE: Seller took great care of me, replaced defective battery. Very friendly. Thank you!These batteries are supposed to be "upgraded" at 630 mAh (vs the standard 550 mAh). But in reality, this only translates to about an additional 45 seconds of flight time. I'm just happy they fit and run the drone. They do go from "Low" to "Critical" in about 20 seconds (versus about 45-60 seconds with the original) so make sure as soon as you see "Low" you get ready to land it.To switch batteries...1.) Exit the Free Flight Program2.) Remove the used battery (I use a small, flathead screwdriver)3.) Install the charged battery4.) Relaunch the Free Flight ProgramThis also gives the drone a chance to "cooldown" a bit. With four batteries, I achieve about 40-45 minutes of flight time which is about right for the drone.Overall, I give this a 5 stars (out of 5) for great price and good customer service. Would definitely recommend purchasing this for your Parrot drone.Product Links:-- My Drone: Parrot MiniDrone Rolling Spider - Red-- Official Parrot Battery: Parrot External Battery Charger with USB Cable and 550mAh Lithium Polymer Battery for Parrot MiniDrones Rolling Spider and Jumping Sumo** Note, these will also work on the newer models Parrot Airborne Cargo MiniDrone - Mars (White) & the Jumping Sumo Drone Parrot Mini Drone Jumping Sumo - White

When my 8 yr old first played with his Parrot Rolling Spider he was really frustrated with the <10min battery life and having to wait 1.5hrs before playing with his toy again. These batteries seem to last a few minutes longer then the OEM unit, and it is great to be able to charge 4 batteries at a time. To be honest, I've not checked into what the other reviewers have said about only charging 2 units, it typically isn't an issue for us. I do have my son let the drone rest before we fly again after one battery is out just to allow the motors a little time to cool. The actual charging device that I have doesn't get warm or hot as others have mentioned either.

Bought these for my husband's drone he got for Christmas. He really enjoyed flying it but didn't enjoy that each battery lasts only about 6 minutes. Having the 3 extra batteries on charge at all times quadruples his "flying time". Definitely pleased with this purchase!

Batteries and charger for parrot spider drone works great. It is nice to have several batteries resdy to go to extend flying time.

Works really well. Wasn't sure what to expect but charges great and is fast.

Good product. The batteries last a little longer than factory ones (630mA vs 550mA), and the charger is light and compact.

Best thing I ever bought. I plan to buy another set.

Batteries and charger work great... I can finally fly my Rolling Spider on batteries with power!!!