Nitecore 3400mAh 18650 Li-Ion Battery (NL189)

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Quoting product code: N08EK


About this product


  • Battery capacity of 3400mAh, 3.7V 12.6Wh
  • More than 500 charge-discharge cycles
  • Direct replacement for the NL189 battery

Product overview

• Battery capacity of 3400mAh, 3.7V 12.6Wh
• More than 500 charge-discharge cycles
• Direct replacement for the NL189 battery
• Compatible with flashlights, vape mods and camping equipment
• Internationally insured by Ping An Insurance (Group) Company of China, Ltd.

What is compatible with this battery?
Purpose designed for high performance flashlights, a selection of vape mods and camping equipment, with protected circuits. Also to be used as a direct replacement for the NL189 battery.

Rated 1 out of 5 by from Good power capacity but wrong physical size I bought four of these a couple of days ago. They are physically the wrong size for most applications. They have a good power capacity but are two millimetres longer than the standard size for a 18650 cell. DON'T BUY them unless your torch/device has a loose battery fitting or a longer spring on the negative pole than the normal size. They don't fit my torch. I will be returning these forthwith.
Date published: 2016-10-21
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Weight 48.2g
Diameter 18.5mm
Length 69.3mm
Warranty 1 year

what are the dimensions?

Asked by: pink
This is the standard dimensions of an 18650 with charge circuitry included.
Answered by: Dominic
Date published: 2017-04-05

will this fit a 2013 nexus 7 tablet

Asked by: folco
Unfortunately we are unable to guarantee full compatibility for this item.
Answered by: Dominic
Date published: 2017-02-08

what charger would i deed for this battery.

Asked by: steve
The one in the link below will work
Answered by: Dominic
Date published: 2016-09-13

Can this be used for e-cigs?

Asked by: Lauren90
Sorry but no it cannot. None of the 18650s Maplin currently sell have a high enough amp output to be suitable.
Answered by: Luke
Date published: 2018-01-26

What are the dimension of this battery please, i have a product that i believe is using this size of battery but would like to check before purchasing as it needs two.

Asked by: Nick
The battery is not quite the same as a plain 18650 - this battery has integrated overcharge/discharge circuitry so it is about 3mm taller.
Answered by: DaveB
Date published: 2016-07-04

Do I need to charge the battery, or Can I just use it straight out of the box?

Asked by: John
The battery would need to be charger fully before use.
Answered by: Les
Date published: 2016-05-13

There's a big price difference between the 2500's and the 3400's. I'm currently using 2x 2500 mAh 18650 battery's to power a 150w  sigelei mod box. Will these 3400 mAh batteries work just as well if not better?

Asked by: Benn
The item can provide up to 4A current output. A higher Mah means it would last longer before a recharge is needed.
Answered by: Dominic
Date published: 2015-12-31

What is discharge rate of this battery.

Asked by: Toon boy
The item can provide up to 4A current output.
Answered by: Dominic
Date published: 2015-12-29
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