Review of Nitefox UR18-26 18650 2600mAh Battery with Direct USB Charging

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I have lots of flashlights and other gadgets that use 18650 batteries, they’ve become very common for sure. Up for review today I’ve got a different sort of 18650 battery from Nitefox. This battery is 2600mAh in capacity so it should last quite a while in most devices but what makes it special is the fact that it has a micro USB port for charging the battery right from any USB port. Read on to learn more…

Specifications and Features

Nitefox 18650 Battery with Direct USB Rechargeable (built-in charging circuit),2600 mAh 3.7 Volt Lithium-Ion Cell Protected.(UR18-26)

1, QUALITY NEW CELL WITH 2600 mAh CAPACITY: Selected Premium 18650 cell for powerful bright flashlight, max current is 5 amp.
2, Micro-USB RECHARGEABLE WITH INDICATOR: Plug included Micro-USB cord to the port to take a charge, NO WASTE MONEY ON CHARGER. Red light will be on when charging and change to green until fully charged. 5MM LONGER than standard 18650 cell.
3, LONG CYCLES LIFE: using for charge and discharge 500 cycles with few reduction
4, 3 SET PROTECTION: Build in protection circuit on positive pole to prevent damage of over charge, over discharge and over-heated, even short circuit to battery and product.
5, WHAT YOU GET: 2600 mAh battery,usb charge cord, storage box, 12 MONTHS FREE WARRANTY

Price: $9.95 (from Amazon at time of review)

The Review

Let’s start with a video unboxing and then move on:


The Nitefox UR18-26 18650 battery ships in a clear plastic storage box and inside you’ll just find the battery and a short micro USB cable for charging.

nitefoxbatt1 nitefoxbatt2


The UR18-26 battery looks like just a standard 18650 battery but if you look closer you’ll see a micro USB port at the positive end which you’ll use for charging the battery. When it comes to 18650 batteries there really doesn’t seem to be a standard size, I have longer ones and shorter ones and this one is longer than others I have. Not much of an issue though, it fit fine in the flashlights I tried it in.

nitefoxbatt3 nitefoxbatt4


At the positive end of the battery, where the micro USB is, you’ll find two indicator LEDs, one is red to indicate charging and then one is green to let you know charging is complete.

nitefoxbatt5 nitefoxbatt6




I can always use another 18650 battery that’s for sure, but when you’re battery dies and you don’t have a charger handy you’ll be happy to have USB charging built-in like the UR18-26 does from Nitefox.

The battery is high capacity and it works fine with everything I’ve tried, it seems to last just as long as other similar capacity batteries I have on hand.

The included storage box is nice to have to protect the battery and to keep the charging cable handy. The battery can be charged with just a standard micro USB cable and any USB port so you’ll always have somewhere to charge the battery if the need arises.

The battery is slighter larger than other 18650 batteries, but for me that’s not an issue, it fit all the devices I tried it in with no problem.

All in all I like the UR18-26 battery, it works fine and the ability to charge right over USB is nice.

+Includes storage box
+LED indicators for charging
+High capacity battery
+Direct USB charging

-A bit larger than other 18650 batteries

score-10-10 Recommended


Scores Out of 10
Design / Aestheticscore-10-10
Value / Pricescore-10-10
Performance / Usagescore-10-10

Disclosure: This product was given to me for review by the company for review purposes only for free or at a discounted price.

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