The Nitecore NL1840R is a 4000mAh 18650 with a USB-C port built into the cell, the kind of spare you can charge from a laptop or power bank instead of carrying a separate charger. Nitecore lists it as the replacement for lights like the UT6 headlamp.
An indicator on the cell glows red while charging and green when it is full. It also fits Nitecore bay chargers such as the UMS4, UMS2, Ci4 and Ci2. Protection covers overcharge, over-discharge and short circuits, there is a pressure-release vent, and reinforced metal ends help against dents and corrosion.
Nitecore NL1840R Specifications
Specification
Detail
Brand
Nitecore
Model
NL1840R
SKU
BAT-NITE-18650-NL1840R
Size
18650
Capacity
4000mAh
Charging
Built-in USB-C, or UMS4 / UMS2 / Ci4 / Ci2
Charge Indicator
Red charging, green full
Protection
Overcharge, over-discharge, short circuit, pressure relief
Frequently Asked Questions
What is the capacity of the Nitecore NL1840R?
The Nitecore NL1840R is a 4000mAh 18650 Li-ion battery.
Can the Nitecore NL1840R charge without a charger?
Yes. The Nitecore NL1840R has a USB-C port on the cell, so any USB-C cable will charge it.
Which chargers work with the Nitecore NL1840R?
Besides its own USB-C port, the Nitecore NL1840R works in Nitecore chargers including the UMS4, UMS2, Ci4 and Ci2.
How do you know when the Nitecore NL1840R is charged?
The indicator on the Nitecore NL1840R turns from red to green once the battery is full.
Where can I buy the Nitecore NL1840R?
The Nitecore NL1840R is available at Going Gear, an authorized Nitecore dealer.
