2400mAh 11.1V 15C Rechargeable Lithium Battery Pack

Pros: Gives similar performance to 2100ma batteries.
Similar in size and shape to other batteries in the 2100ma class, fits most planes.
Includes Deans connector and standard charge connector.
Works great in my Stryker, Super Cub and Phase3 Mustang.
I'm usually pulling about 20A.

Cons: Probably closer to 2100ma.
Lipo cells are exposed on the sides,
it's best to handle them with care!

Other: A good general purpose lipo for park flyers.
The cells seem to be of good quality.
It should fit 400 size heli's.
You can't beat the price!

Pros: This battery has a very large capacity and the battery also features little spacers between each of the three cells, this will prevint any overheating during use. the battery also features heavy duty wires and Deans plug. very good lipo, very good price.

Cons: None really unless weight and size is a worry.

Other: If you need a battery with large capacity but you are on a tight budget, then this battery is for you.

Pros: I ordered this to lengthen my flying time with a Honey Bee King 2. I went from 4 minutes with the stock motor batter to, well I don't know. I flew it for over 30 minutes on 4 separate occasions with a Mystery 4200kv from here. I have NEVER ran this battery down, it has decent output amps, it's not heavy it's CHEAP. It now resides in my GWS p-40 with their 2215 brushless, it fits perfect, the plane balanced great with it.

Cons: I have yet to find any cons on this battery. I no longer have my heli, I sold it to buy a GWS war bird. I have not had a chance to see how long it will fly in the war hawk but but it should go about 20 minutes at WOT maybe 30 minutes of just cruising around.

Other: BUY IT!!!!!!!!! WAIT, don't buy it, they wil be sold out when I order more ;)
I plan on having 5 birds so I need 9 more of these.

Pros: it is a very good battery!
i use it for my Belt-cp helicopter. and now i have more than 15 minutes fly-time!
it's very powerful, very small, and very light! my belt-cp helicopter is much lighter and it's easyer to fly

Cons: when you fly with other battery type, and changing for this one, you'll need to set up your helicopter again, because it much lighter than the others...

Other: here, 1800 Mah battery cost more than 50$!!
so it's a very good deal for me!

Pros: Works fine.
Keeps balanced during discharge.
Runs an E-max 2215/20 with 10x5E propeller on a damn heavy airplane (over 1kg/40oz) for about 12-13 minutes.

Cons: Gets really hot under massive discharge.
Otherwise, I can't see more problems. Maybe it's under the declared capacity, but it gets close.
Price.. it stills the more expensive part of an electric model.

Other: Could be cheaper.
Get the E-Sky charger along with it, takes a lot of time to charge (2400mAh / 800mAh = 3 hours of charging, but lets make it a 5), but will make your battery lasts a long time.

Pros: Got it for my Blade 400 3D, besides being much smaller than the original, it fitted like a glove. very well made with some kind of foam that separates each battery from each other so it keeps it cooler, and besides being lighter than the original one it worked just fine.
.
.

Cons: No Cons

Other: I still didn't find the AC charger for my Lipo batteries, im still charging them on my car's battery. no big deal...

Pros: Great build quality, better than the original unit that came with my heli. This fits perfectly in to the Twister 3D Storm heli.

Cons: Hmmm, nothing that I can think of! As long as it lasts a fair few cycles it will be great!

Other: Buy it, bargain price and don't pay hyped up model shop prices!
500 500 500 500 500

Pros: Very nice batteries for the price.
Seems that there are more punch in this batteries than the original batteries for Blade, could also be that they are lighter.
Works easy with the Eflite or the Esky original charger.
Bought three of them.
Nice price.

Cons: Comes with Deans, not EC3 plug.
Dealextreme should sell EC3 plugs and/or converters. One EC3 plug cost almost $7 dollars here. So either you must solder a new plug on either the batteries or the Blade.
They are thicker.
And the change the balance of the Blade.

Other: Nice batteries, nice prise, nice DealExtreme;)

Pros: Cheap
Light, compared to a NiMH pack
Powerful. Measured with a GPS I reached 50km/h with a 17-turn brush motor before I lost control and ran out of the track.

Cons: Not really

Other: Buy this. You wouldn't regret

Pros: Cheapest battery in it's class and still quality it offers is very good. Friend of mine used it in his Easy Star RC plane and he was very pleased with it. Gives enough kick to send plane almost vertically up. After several charges it still has it's nominal capacity.
Plus it has Deans T connector already installed.

Cons: None that I could think of actually. After may tests it still keeps it's parameters...

Other: Will buy it again for sure....