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2.48 € - 13.75 €
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Max. continuous discharge current (A)
5 A - 50 A
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Reclaimed batteries 
  1. Batteries
  1. Batteries
  2. Li-Ion battery in 18650 size

Li-Ion battery in 18650 size

Rechargeable batteries are now found in all wireless electronic devices, but which one is right for you depends on a lot of things, so always check the description of the product you are using, and check out this parameters:

  • the voltage (1.2 1.5, 3.0, 3.2, 3.7 V)
  • size: (CR2/15270, CR123/16340, AAA/10440, AA/14500, 18650, 26650, 21700, 26800, etc.)
  • what kind of design (flat or buttom top positive pole)
  • What is the discharge current: (A)
  • what capacity (mAh) battery is recommended by the manufacturer.

We can help you choose the best battery for you! Sort products by popularity, price or name and use the Filters to see only the products that are right for you. If you still can't decide, contact one of our experts on the customer service contact details provided and they'll help you make the right choice.

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Sumsang INR18650-30Q 3000mah 20A reclaimed

Sumsang INR18650-30Q 3000mah 20A reclaimed

In stock
Battery size
:
18650
42
6.49 € 
3.73 €
Sony | Murata VTC6 18650 3000mAh 15A Battery

Sony | Murata VTC6 18650 3000mAh 15A Battery

In stock
Battery size
:
18650
43
11.75 € 
6.74 €
Basen BS86A Pro with PCB 3500 mAh

Basen BS86A Pro with PCB 3500 mAh

In stock
Battery size
:
18650
8
9.99 € 
9.24 €
Sumsang INR18650-25R 2500mAh - 20A Reclaimed

Sumsang INR18650-25R 2500mAh - 20A Reclaimed

In stock
Battery size
:
18650
48
6.24 € 
3.23 €
Vapcell N40 18650 4000mah li-ion battery

Vapcell N40 18650 4000mah li-ion battery

In stock
Battery size
:
18650
22
11.25 € 
8.74 €
Sumsang INR18650-30Q 3000mah 20A

Sumsang INR18650-30Q 3000mah 20A

In stock
Battery size
:
18650
41
8.49 € 
4.98 €
Vapcell 18650 M35 3500mAh 10A/25A battery

Vapcell 18650 M35 3500mAh 10A/25A battery

In stock
Battery size
:
18650
41
9.24 € 
5.49 €
Vapcell B34 18650 3400mah 10A PCB battery

Vapcell B34 18650 3400mah 10A PCB battery

In stock
Battery size
:
18650
9
8.24 € 
7.49 €
Vapcell N36 18650 3650mah PCB

Vapcell N36 18650 3650mah PCB

In stock
Battery size
:
18650
5
9.99 € 
9.49 €
Vapcell N40 18650 4000mah li-ion battery with PCB

Vapcell N40 18650 4000mah li-ion battery with PCB

In stock
Battery size
:
18650
20
12.50 € 
9.99 €
GL INR18650-MJ1 3500mAh - 10A BT

GL INR18650-MJ1 3500mAh - 10A BT

In stock
Battery size
:
18650
8
9.99 € 
9.24 €
Sumsang INR18650-30Q 3000mAh - 15A button top

Sumsang INR18650-30Q 3000mAh - 15A button top

In stock
Battery size
:
18650
5
11.00 € 
10.49 €
Vapcell U30 18650 30A battery

Vapcell U30 18650 30A battery

In stock
Battery size
:
18650
9.24 €
Sumsang INR18650-20R 2000mAh - 22A

Sumsang INR18650-20R 2000mAh - 22A

In stock
Battery size
:
18650
11
4.48 € 
3.98 €
Vapcell 18650 P30 3000mah 20A button top

Vapcell 18650 P30 3000mah 20A button top

In stock
Battery size
:
18650
29
10.49 € 
7.49 €
Molicel INR18650-P30B 3000mAh - 36A

Molicel INR18650-P30B 3000mAh - 36A

In stock
Battery size
:
18650
39
12.25 € 
7.49 €
 GL INR18650-HJ2 3000mAh - 20A

GL INR18650-HJ2 3000mAh - 20A

In stock
Battery size
:
18650
47
7.49 € 
3.98 €
Sanyo NCR18650GA 3350mAh - 10A - reclaimed

Sanyo NCR18650GA 3350mAh - 10A - reclaimed

In stock
Battery size
:
18650
48
6.24 € 
3.23 €
Sony / Murata US18650VTC5D 2800mAh - 35A

Sony / Murata US18650VTC5D 2800mAh - 35A

In stock
Battery size
:
18650
8.99 €
Vapcell 18650 M35 3500mAh 10A/25A battery (Button top)

Vapcell 18650 M35 3500mAh 10A/25A battery (Button top)

In stock
Battery size
:
18650
7
6.74 € 
6.24 €
Trustfire 18650 3400mah Batteries with pcb

Trustfire 18650 3400mah Batteries with pcb

In stock
Battery size
:
18650
13.75 €
Molicel INR18650-P26A li ion button top battery

Molicel INR18650-P26A li ion button top battery

In stock
Battery size
:
18650
7.49 €
Vapcell S30 18650 25A battery

Vapcell S30 18650 25A battery

In stock
Battery size
:
18650
8.99 €
Vapcell N1830A 18650 3000mah 15A

Vapcell N1830A 18650 3000mah 15A

In stock
Battery size
:
18650
23
11.00 € 
8.49 €
Molicel INR18650-P28A li ion battery, 35A

Molicel INR18650-P28A li ion battery, 35A

In stock
Battery size
:
18650
17
13.50 € 
11.25 €
Vapcell Z30 18650 80A battery

Vapcell Z30 18650 80A battery

In stock
Battery size
:
18650
7.49 €
Sony / Murata US18650VTC5 2600mAh - 30A - button top

Sony / Murata US18650VTC5 2600mAh - 30A - button top

In stock
Battery size
:
18650
7.99 €
Sony / Murata US18650VTC4 2100mAh - 30A

Sony / Murata US18650VTC4 2100mAh - 30A

In stock
Battery size
:
18650
4.48 €
 TENPOWER INR18650-35HE 3500mAh 18650 Battery

TENPOWER INR18650-35HE 3500mAh 18650 Battery

In stock
Battery size
:
18650
3.48 €
Sumsang 35E 18650 3500mAh 8A Battery  reclaimed

Sumsang 35E 18650 3500mAh 8A Battery reclaimed

Out of stock
Battery size
:
18650
55
8.24 € 
3.73 €
Sumsang 35E 18650 3500mAh 8A Battery

Sumsang 35E 18650 3500mAh 8A Battery

Out of stock
Battery size
:
18650
41
5.49 € 
3.23 €
GL INR18650-MJ1 3500mAh - 10A

GL INR18650-MJ1 3500mAh - 10A

Out of stock
Battery size
:
18650
53
7.99 € 
3.73 €
Sumsang INR18650-25R 2500mAh - 20A

Sumsang INR18650-25R 2500mAh - 20A

Out of stock
Battery size
:
18650
25
4.98 € 
3.73 €
Basen BS186Q3 3100 mAh - 50A  battery

Basen BS186Q3 3100 mAh - 50A battery

Out of stock
Battery size
:
18650
4
11.25 € 
10.74 €
GL INR18650-MJ1 3500mAh - reclaimed

GL INR18650-MJ1 3500mAh - reclaimed

Out of stock
Battery size
:
18650
42
5.99 € 
3.48 €
Molicel INR18650-P28A li ion battery, 35A

Molicel INR18650-P28A li ion battery, 35A

Out of stock
Battery size
:
18650
15
8.49 € 
7.24 €
Basen BS186Q 3100 mAh - 40A  battery

Basen BS186Q 3100 mAh - 40A battery

Out of stock
Battery size
:
18650
7
10.74 € 
9.99 €
Panasonic NCR18650BD 3200 mAh

Panasonic NCR18650BD 3200 mAh

Out of stock
Battery size
:
18650
46
8.74 € 
4.73 €
LiitoKala Lii-31S 3100 mAh - 35A  battery

LiitoKala Lii-31S 3100 mAh - 35A battery

Out of stock
Battery size
:
18650
32
8.74 € 
5.99 €
EVE INR18650-35V 3500mAh 18650 Battery

EVE INR18650-35V 3500mAh 18650 Battery

Out of stock
Battery size
:
18650
18
4.23 € 
3.48 €
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52 product 1 40

When choosing a battery, there are some very important aspects to consider, otherwise the device you put the battery in will either not work or it could burn out, so it's a good idea to check what you need to look for when choosing the right battery before you buy to make sure you don't miss out!

One of the most important aspects is size, so choose the size of battery that the manufacturer recommends for your device, because if you buy a smaller or bigger one, it won't fit, it won't reach the terminals or it will rattle, so if it says 18650 size, for example, then buy one that's not smaller or bigger. What else should you look for to choose the right battery???

Grouping by size

The most common Li-ion cell size is 18650, but also 14500 and 26650 are common, 10440, 16340, 18350, 18500, 32650, and recently 20700 and especially 21700 are becoming more common. In practice, these numbers represent the size of the battery, for example, if we look at the 18650, the first two characters indicate the diameter of the cell, in our case 18 mm, and the second two characters indicate the length of the cell, which is 65 mm. To make life a bit more complicated, some batteries can vary in size by a few mm, so even though it's 18650, it can still be 18.5 mm wide and up to 70 mm long, especially if it's protected (more on what that means later), so it's worth making sure you know what battery will fit in which device you want to use before ordering.

Grouping by voltage

  • Nickel-based batteries, which have a nominal voltage of 1.2 V, which in practice means that they operate between 0.8 and 1.4 V.
  • Lithium-based batteries, but with an operating voltage of 1.5 V, these were created to replace the previous group, operating between 1 and 1.8 V
  • Lithium-ion at 3.0 V (typically CR2 and CR123 sizes)
  • LifePO4 batteries with 3.2 V
  • Li-ion 3.6 V (between 2.8 and 4.2 V)

These are not interchangeable, so don't put a 3.6 V battery in a device expecting a 1.2 V device, or you'll end up with a nasty mess. A 1.5 V battery will simply ruin a standard 1.2 V charger. But you can put a 3.0V battery in a charger that is wired for 3.2V, but there is no reason for a bigger difference.

Grouping by material

Currently there are two main battery types on the market, nickel based (1.2 V) and lithium based. (3,7V)

Li-ion

Lithium-ion batteries are currently the most common (we mainly sell them), for a number of reasons:

Lithium batteries are much lighter and more durable than nickel-based batteries
No memory effect
They are lighter and less expensive than conventional batteries
Even a depleted cell can deliver at least 2.8V compared to NiCd or NiMH batteries of 1-1.25V, although it is not advisable to go below 3V as this will compromise battery life, and not all chargers can bring them to life
However: unprotected ones are more sensitive, they can be overcharged, which can destroy the battery, and a sealed battery can be dangerous, so only buy a quality battery and charger from a reliable source

Protection
Li-ion batteries can be divided into two broad categories: protected and non-protected. Protected batteries have a small circuit at the bottom or top that serves safety purposes, disconnecting the battery cell from its terminals in case of overcharging, over-discharge or short-circuiting. Accordingly, unprotected batteries require more care but are cheaper than their protected counterparts. The protection is marked on the batteries with a PCB.
Importantly, protected batteries are longer, for example, 18650 protected batteries can be up to 70 mm instead of 65 mm.

Discharge Current
There are high drain and low drain battery types, a number that indicates how much current can be drawn from a battery at a given moment. This is important because for many devices it is irrelevant, e.g. electric cigarettes prefer high drain batteries, but for many other devices the Discharge Current is also important.

Max. a nd continuous discharge current
For batteries, we distinguish between the above two figures, because while the first one can be maintained by the battery until the end of its capacity, the second one can only be maintained for 1-2 seconds, so it is worth paying attention to what is written on the battery and what is advertised.

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