5200mAh 2S 50C 7.4V LiPo Battery Pack Hard Case with Deans T Plug for RC Vehicles Car Truck Truggy Boat Airplane Drone (2 Packs)

My experience with these batteries has been great.The first thing I do when receiving any new batteries is hook them up to check the storage voltage and ensure that all cells are balanced properly. These packs arrived at the proper storage voltage with all cells balanced. The manufacturing tolerances were also very good in that both batteries were at almost the exact same level.The build quality of the batteries is also very good. The hard plastic casing makes the batteries very durable, holding up to the torture we all put our packs through. One thing that has frustrated me with other batteries that I have purchased is how they put cheap labels on the outside of the battery that wear off in short time. These batteries have high quality heat shrink covering the labels which are attached to the hard plastic casing. This prevents the label from getting worn out/damaged/and falling off. It seems so simple, but most companies fail to get it right.When I first purchased these batteries I was skeptical about the removable battery lead that plugs into the battery via bullet connectors. I was concerned that this was unnecessary and that it would just cause me problems, that I would lose them, etc. I was wrong. I ended up loving this feature, for a few different reasons. Firstly, it makes for a great way for me to identify which packs are charged/discharged. After charging my packs up for the day I leave the battery cable plugged in, letting me know its ready with a full charge. After running the pack down, I remove the battery lead so that I can easily tell my charged packs from my discharged packs. Also, being able to remove the lead makes the battery very compact and easy to store. Again, so simple, but I found it to be a great feature.Finally, lets get into the performance of these batteries. After all, that is what we really care about. I have run these packs through several cycles with no issues. They provide the power and punch I was looking for. So far with about 30 charge/discharge cycles they are still running great. Even after running them hard they don't get hot. I was really surprised with how well these performed compared to others at this price point.Oh yeah, they also throw in the strap with each battery. I would prefer to see some rubberized backing and some thicker material used, but I can't really complain here, I got 2 straps when most other companies don't provide anything at all.I would highly recommend these packs to anyone considering them.

These batteries are darn good. I bought a pair of them to alternate on my Groundpounder. Running a middle of the road decent output 1/8th brushless system. They have very good, consistent power and the run time is just stupid. These charge out quite a bit over 5200 mah after many uses, and are perfectly balanced. (BTW Only use these with a decent balancing charger.. Never use any charger for lithium batteries that does not balance or is not supported for lithium polymer) [Its asking for problems, just trust me on that one]Back to the review! They come in a well padded double layer box with foam. The wiring is just right with some gold banana plugs that go into the pack and a well soldered and shrink-wrapped Deans connectors on the other end. The casing is Tough plastic. Probably poly-glass. Shrink-wrapped around the case with a label. I think these are just a really great choice for weekend warriors and perhaps even serious racers who are into saving money. Yes I will order more.

These have been really good batteries for my Crawler.. A pretty good choice if 2s is your thing..

This Battery is one of the best that i have bought good power and looks good

I got obviously used and abused batteries! Pretty upset. They are all scratched up and one won't even take a charge. I can't even use them as a pair like I needed them for.

I bought these to use in a number of RC vehicles. They come with velcro straps that I absolutely love!!! I use the strap rather than the stock battery holders. Another great feature is the charge/discharge wire is detachable. The battery can be used in multiple vehicles with different discharge connections Just by swapping the wires out.It fits perfectly in Traxxas Stampede and my Gold Pan RC10. Just be aware that the wire plug in are on top of the battery and can interfere with your battery holder depending on the model you are using.I was able to use with the Quanum Vandal/Riverhobby Spirit 4WD buggy with some minor modifications. The battery fit but I had to drill a slot in the pan to fit the Velcro strap. I also had to drill a hole in the top brace to accommodate the battery plug.I've included photos with measurements. I've also included modification photos of the Quanum Vandal to accomplish the plug and Velcro strap.

The batteries seem to work ok except the cells are not balanced. After every run there is a large voltage difference between the two cells. About .3 volts. I am concerned this will get bigger and become more of an issue as they get more discharge cycles on them. I am one day past my return window (30 days) when I noticed it after my son ran his RC truck so I am stuck with them.

Product arrived quick.....as advertised. I have used them in multiple rc cars. Batteries last long and seem to be holding up well. I would order again.