Zeee4S Lipo Battery 5200mAh 14.8V 120C Hard Case Battery with EC5 Plug for RC Buggy Truggy 1/10 Scale Racing Truck Crawler Monster RC Car Boat(2 Pack)

These are decent batteries so far. Im running them in the Outcast 8s, Max5 paired with a 800kv motor and 39/38 gearing. I get about 10-15 minutes depending on how I drive. I also purchased a set of SMC batteries, same specs. The SMC packs definitely have more punch and about 5-7 minutes more run time but Im satisfied with the Zeee's, I would recommend and purchase again.Update 3/11/23After picking up a higher capacity set of SMC batteries I concluded that these batteries are not the best for my specific application. After getting a bit more comfortable with the truck I pushed it more aggressively. A full throttle pull from dead stop triggered the low voltage cut off. I do have it set high as possible as I don’t want to damage my batteries, the 800kv motor pulls a lot of amps. I ended up selling the packs to a friend, they are decent packs for the stock 8s Arrma trucks but not so good for aftermarket systems with high gearing. I foresaw these puffing in a few months due to the voltage drop.

Brand new got put them at full charge lasted half the time something is wrong with these batteries all other 4s batteries I have last the 20 laps and then some

These batteries fit better than the Spektrum 4s 5000mah batteries in the Mojave 4s.The Spektrum batteries cable either goes in the way of the body post of the Mojave 4s, or if you flip the Spektrum battery over, the chords are at risk of rubbing on the drive shaft and getting destroyed. See my first picture showing the Spektrum cables interfering with the body post.The Zeee batteries are AWESOME! First off they're priced WAY better, and the cables of the Zeee batteries come out of the top and clear the battery holder. See my second photo showing the Zeee battery chord and how it works perfect! These batteries do require a little whack to get them in place each time, but just a little whack.

I love these batteries. I use them in cars, trucks, boats, and airplanes. I used to work at a hobby shop and sell name brand batteries that cost over double that do not have the same amazing performance that these have. They are also incredibly well-made.

The batteries have a significantly lower capacity than advertised. After noticing some really short run times with my rc car, I ran a discharge cycle on my charger to measure the capacity and both were under 2500 mAh. So less than half what was advertised. Pretty disappointing, because I’ve had great luck with Zee batteries in other sizes.

Batteries are taller then the 3s works perfectly for my arrma vorteks !

Great batteries

I recently purchased a pair of Zeee 4S 5200 mAh 120C (blue pack) batteries from Amazon. The runtime is only half of my Spektrum 4S 5000 mAH 50C battery under similar conditions using my Mojave 4S. Here was my last cycle (similar results on each pack):100% charge, all cells equal, the total was 16.7vESC set at punch 4 and LVC at 3.4vRuntime was only 8 min before LVC.Readings when putting on my S155 (55w) charger: 14.5v, all cells 3.63v, 9% charge.Readings after charge complete: 16.7v, cells 4.2v, 3165 mAh charged, 8.6mOhms (total), charge time 63 min.The charge rate was between 3.2A and 3.4A. This is correct for 55w input.These are more like 3200mAh capacity units instead of 5200mAh units.I left this at two stars because the batteries work and the cost for two packs is cheap ($90 at the time of review). Just be aware of what you are getting.