Rechargeable Batteries
Samsung INR21700 Rechargable Battery 21700 Li-ion 4000mAh 3.7V 1pcs
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Description
Rechargeable Samsung INR21700-40T battery size 21700 designed for high-discharge devices such as laser pointers, vaporizers, electronic cigarettes, and any other device that accepts 21700 type batteries.
Manufacturer
Specifications
- Capacity
- 4000 mAh
- Size
- 21700
- Type
- Li-ion
- Voltage
- 3.7 V
- Packaging
- 1 pcs
Important information
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.
Reviews
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Reviews by our members
They were used for the repair of a DEWALT electric drill battery. They are suitable for such use as they withstand a lot of current and can power tools for heavy and demanding use.
Translated from Greek ·Did you find this review helpful?they have a smaller capacity, about ~ 3600mah
such capacity can also be found in 18650.
since I bought it for a flashlight to have light all night, I am thinking of returning it but I don't know yet.Translated from Greek ·- Value for money
- Durability
- Expected capacity
Did you find this review helpful?Okay, the batteries are fine. After some uses, the performance will decrease and at some point, we will throw them away as well. I use them in a handheld flashlight and they last longer than a flashlight with a 18500mha battery. So they definitely have the capacity they claim.
Translated from Greek ·- Durability
- Their performance does not decrease quickly
- Value for money
Did you find this review helpful?I bought 4 batteries. One was already faulty. The others capacity diminished fasted after being used a few times.
- Durability
- Expected capacity
- Does their performance decrease soon?
- Value for money
Did you find this review helpful?I can't understand why I ordered a Samsung and received this battery.. Does it mention anywhere the model and brand? However, the capacity and dimensions are correct... I used to also buy from China like this
Translated from Greek ·- Expected capacity
- Durability
- Does their performance decrease at a moderate rate?
- Value for money
Did you find this review helpful?The batteries are great!!
I bought them for my vape.
I recommend you to buy these batteries and don't look for any other...
Translated from Greek ·- Durability
- Expected capacity
- Their performance does not decrease quickly
- Value for money
Did you find this review helpful?Unfortunately, I returned them because simply they do not fit in an electronic cigarette... they have a longer body and are a little thicker.
Translated from Greek ·Did you find this review helpful?It is the 21700 battery that most vapers use. Very reliable and withstands a lot of abuse.
Translated from Greek ·- Durability
- Expected capacity
- Their performance does not decrease quickly
- Value for money
Did you find this review helpful?Excellent, as long as you receive the authentic ones. Some stores have other brands with Samsung wrap.
Translated from Greek ·- Durability
- Expected capacity
- Their performance does not decrease quickly
- Value for money
Did you find this review helpful?I bought it for my Geek Vape and I was impressed with its performance. In fact, I bought 2 and the first one lasted for 2 whole years without ever needing to charge it. Highly recommended for those looking for a reliable and high-quality battery.
Translated from Greek ·- Durability
- Expected capacity
- Their performance does not decrease quickly
- Value for money
Did you find this review helpful?It's so terrible that I bought Moricel and they are just as terrible!
I don't know how some people give them good ratings when both of them are terrible and a waste of money.
They don't go over 2500mAh in charging. And now ALL of them are giving me an error on the charger.
My charger is brand new, the XTAR X2.Translated from Greek ·- Durability
- Expected capacity
- Does their performance decrease soon?
- Value for money
Did you find this review helpful?Just bought it. I plugged it in to charge and it had 3.6V. Seems like low storage voltage to me. I will come back with further comments. I will use it on the astrolux ft02s flashlight
Translated from Greek ·Did you find this review helpful?I bought them for a single battery mod electronic cigarette, but they are all over the place in terms of capacity!!! I bought 4 pieces and NONE of the 4 reaches the promised 4000mAh. The best one reaches 3800mAh and the worst one reaches 3200mAh. Other batteries are much much better. Stay away from these...
Translated from Greek ·- Durability
- Does their performance decrease at a moderate rate?
- Expected capacity
- Value for money
Did you find this review helpful?So I have had these batteries for about a month. They have gone through at least 15 charges and discharges. Definitely, at least mine do not have the capacity that they claim, and both are around 3250-3450. That's why I give them 3 stars, otherwise they provide very good currents, they don't struggle at all, and they don't get hot either. With the capacity that mine have and with the mod that I have, the vaporesso Target 100, they last me 2 days, maybe 2 and a half, heavily vaping at 30 to 35 watts, with a loose MTL draw.
Translated from Greek ·- Their performance does not decrease quickly
- Durability
- Value for money
- Expected capacity
Did you find this review helpful?Their capacity is about 60% of the old ones I have had for a year. It's a shame for their price. Scroutz sent me 2 new batteries that were okay
Translated from Greek ·- Durability
- Does their performance decrease at a moderate rate?
Did you find this review helpful?The best on the market along with the molicel p42a in 21700. Just make sure they are genuine because there are many fakes out there!!! Be careful where you buy from!
Translated from Greek ·- Durability
- Expected capacity
- Their performance does not decrease quickly
- Value for money
Did you find this review helpful?The best battery I have tried, 40 Amps. This is very important, I have bought so many batteries. Only these I use, good performance. Good power and even when it's half, it still maintains its performance, it is reliable
Translated from Greek ·- Durability
- Expected capacity
- Their performance does not decrease quickly
- Value for money
Did you find this review helpful?I bought two to alternate them in a mod. One lasts 1 to 1.5 days and the other barely lasts a day. I need to measure them to see their capacity. I don't see a significant difference from the Sony 18650 batteries.
Translated from Greek ·Did you find this review helpful?Very good 21700 batteries. At 85W that I vape, they give me around 450 to 500 puffs. About one day. I also have the Molicel as a second pair, equally comparative. I highly recommend them
Translated from Greek ·- Durability
- Expected capacity
- Their performance does not decrease quickly
- Value for money
Did you find this review helpful?Very good battery, I had it for almost 4 years where I replaced it with the same one again because its performance started to decline. In a review I had seen in 2019, it was voted battery of the year!
Translated from Greek ·- Durability
- Expected capacity
- Their performance does not decrease quickly
- Value for money
Did you find this review helpful?The capacity of them is 4 Ah. The dimensions are slightly above the indicated 21x70 mm approximately +1 mm in diameter and +0.5 mm in height.
Translated from Greek ·- Expected capacity
- Durability
- Value for money
Did you find this review helpful?I bought one and it turned out to be bigger, it fits with difficulty in the groove or the drag X. It also seems longer in length besides the thickness. An old one I had was okay, but the one they sent me is terrible
Translated from Greek ·- Value for money
Did you find this review helpful?The capacity of it is a big flaw. It says 4000, but the one I got is only 3200. The equivalent 21700 that I have, the 30t, has almost the same performance. The difference in puffs is only 75, vaping at 24 watts. The 30t has 450 puffs, while the 40t has 525. Other than that, it has good currents until the last puff.
Translated from Greek ·- Durability
- Does their performance decrease at a moderate rate?
- Expected capacity
- Value for money
Did you find this review helpful?For the price of 7 euros and compared to other much more expensive ones, I consider it a very good battery. I use it in Aegis Max with a resistance of 0.25Ω and 50-55 watts and it easily lasts me a day with heavy vaping, I would say. I believe its capacity is around 3500 mAh, measured with XSTAR VC4S, and it takes more than 10 charges to reach its maximum performance. Of course, the charger is not the best measuring tool. I use two of them and alternate them every day. I would definitely buy it again for its price and what it offers.
29/06/21 I come back to mention something negative about a batch of these batteries. The top contact (small pin) sinks in, even though I use the same volts when screwing the base onto my atomizer. I still use it, of course, without showing any difference from its normal initial state. The problem lies in the charger, as due to this sinking, there are times when it cannot charge it due to poor contact.
06/09/21 The problem with the top small contact (positive pole) unfortunately cannot be fixed, resulting in the mod sometimes recognizing the battery and sometimes not. It is not the mod's fault, but the battery itself, as its pressed pole does not make good contact.
-Wherever you see a very low price, avoid buying it so you don't end up like me (my opinion)Translated from Greek ·- Durability
- Their performance does not decrease quickly
- Value for money
- Expected capacity
Did you find this review helpful?The XTAR VC4 2860-2900mAh battery doesn't last me a whole day like the competitive Eleaf AVB 21700 4000mAh battery (in the XTAR 3620-3700mAh). What can I say...
Translated from Greek ·- Durability
- Does their performance decrease at a moderate rate?
- Value for money
- Expected capacity
Did you find this review helpful?They are durable, the packaging is as it was after 2 months of use, but the truth is that I take care of them as well.
The only thing that bothered me is that they do not have a capacity of 4000mAh as promised... it is about 3500mAh... it lasts me 1 day of vaping with low watts from 15 to 20 watts.
I charge them with an external charger and not directly from the device.Translated from Greek ·- Durability
- Does their performance decrease at a moderate rate?
- Value for money
- Expected capacity
Did you find this review helpful?With the xtar vc4 charger, it reaches 3400 mah. It holds for almost 4 days with 20 watts on the cigarette, so I am satisfied.
Translated from Greek ·- Durability
- Their performance does not decrease quickly
- Value for money
- Expected capacity
Did you find this review helpful?I have five of these and I use them interchangeably in the Aegis mod, and I am completely satisfied. I believe that when it comes to 21700 batteries, Samsung is one of the top choices. They have large capacities and good currents. With a 0.2 ohm resistance at 75 watts, it delivers 21 amps and doesn't even sweat, which is more than enough for me. As for the battery life, it depends on each person's usage and the wattage they use for their coils. With normal vaping, even at high wattage (60-80), it easily lasts the whole day. If you chain vape, it will last around 5-6 hours, and you will need two batteries until the evening. Those who vape at low wattage and do MTL will be more than satisfied and will have even longer battery life. For hardcore sub-ohm situations, the 30T is preferable as it delivers more current and can handle up to 100 watts. But of course, you sacrifice battery life. I don't know if it really has 4,000mAh. The XTAR VC4S test showed it gave around 3,600mAh, but this is something that happens with most batteries, and you know it from the beginning. Although this specific method of measuring capacity is completely amateurish and may not fully reflect the truth, unlike more professional measurements that show that the battery is very close to its nominal capacity and may even exceed it. (With a discharge current of 0.8A, the capacity was measured at almost 4,100mAh and did not drop below 3,800mAh even with a discharge current of 20A.) Overall, it is one of the best 21700 batteries currently available from a reliable manufacturer and at a good price. I declare myself satisfied, and if needed, I will purchase the same one again.
EDIT. Someone claims that it only had a capacity of 2,900mAh. No way! If you let it discharge completely to the point where the device no longer works and the battery is not damaged, it will reach around 3,400-3,500mAh before the charger shows it as full. So, the friend either did something wrong or got a fake or defective battery.Translated from Greek ·- Durability
- Value for money
- Expected capacity
Did you find this review helpful?I bought this battery for use in an electronic cigarette, after reading various online reviews. I had also bought the 30t, which although it has clearly better performance than a 18650, it cannot be compared to the 40t. The battery simply doesn't exist!!! It easily lasts over a day with moderate use at 55w
Translated from Greek ·- Durability
- Expected capacity
- Their performance does not decrease quickly
- Value for money
Did you find this review helpful?Verified purchase
Amazing product for upgrade
Translated from Greek ·Did you find this review helpful?
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