VICMILE Gel Blaster Battery 11.1V 2100mAh 3S Airsoft Batteries with SM2P Plug 35C High Discharge Lipo Battery Compatible for Gel Water Bead Blaster with 3S Charging Cable and SM2P to Mini Tamiya Plug

Honestly I just want to rip it open and find out how the made a 3s battery in this shape. Stacking 18350’s or what. Battery works good for a gun fits great but I just so curious how they got it shaped like this

Very happy

Don’t buy! The first time we used the battery it started on fire! Waste of money

These batteries are pretty small, which immediately made be skeptical about the rating. They are 17.5mm in diameter by 102.5mm long (not including the leads). I did some testing to determine the capacity and they fell way short of their rated 2100 mAh capacity.The standard testing I do is to fully charge the battery then discharge it to 50%, measuring the energy removed from the battery. For a LiPo cell, a full charge is 4.20V per cell and 50% is 3.84V per cell. It is not healthy for the battery to discharge it to zero, so that's the reason I discharge to 50%. I also charged the battery with the included charger and I wasn't happy with the charge it put on the battery as it had reached 4.22V per cell and was still charging. I stopped the charge cycle short at that voltage because that's already too high.So after fully charging a battery then discharging it to 50%, I had discharged 383mAh from the battery. Multiply that by two and you get the battery capacity, which is 766 mAh. That's far short of the rated 2100mAh.It is not possible with current technology to get 2100 mAh out of a battery this small. Since this is a 3 cell battery (3 cells in series), I suspect they are three 16340 cells in series. The typical capacity of a 16340 cell is 700mAh so I suspect the manufacturer took the 700mAh rating and multiplied by 3 to get the 2100 mAh rating but it doesn't work that way.The other concern is the 35C rating. 35C means you can discharge the battery at a current 35x it's rated capacity. So in this case 2100 x 35 = 73.5 Amps. The internal resistance of these cells was in the 85 m-Ohm range, which is much to high to give you 73A. I am not going to try to test this because I can assure you the battery will go on fire if I can manage to pull 73A from it so you will have to take my word for it based on many years of experience that there is no way on this earth that you will safely get 73A from this battery.In summary, these batteries produce about 36% of their rated capacity. The charger over charges the battery. The rated 35C is greatly exaggerated. They may work fine depending on your usage but they don't come anywhere close to their rated specs.

As soon as I plugged them up it started smoking

I don’t own a Gel Blaster…..I ordered these batteries for use in R/C models, which the description mentions. An adapter is included for this use. The round shape of the packs easily fits into the fuselage of model airplanes.I was disappointed to find the capacity of these 3 cell battery packs is not what I expected. My battery analyzer reports their capacity is actually 950 mAh, which is less than half the claimed capacity. My use is nowhere close to their 35C discharge specification, and they power my R/C model just fine.At this price point, I would not expect a charger to be included. It works as described and doesn't overcharge the battery packs.Compared with available 11.1 LiPo battery packs at 850-950 mAh capacity, these are still a good value with a charger thrown in for good measure.

Caught on fire don’t buy