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Nitecore NL1834 18650 3400mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Blister Pack

Nitecore NL1834 18650 3400mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Blister Pack
Nitecore NL1834 18650 3400mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Blister Pack
Nitecore NL1834 18650 3400mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Blister Pack
Nitecore NL1834 18650 3400mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Blister Pack
Nitecore NL1834 18650 3400mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Blister Pack
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Nitecore NL1834 18650 3400mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Blister Pack
Nitecore NL1834 18650 3400mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Blister Pack
Nitecore NL1834 18650 3400mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Blister Pack
Nitecore NL1834 18650 3400mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Blister Pack
Nitecore NL1834 18650 3400mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Blister Pack
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Nitecore NL1834 18650 Battery

3.7V 3400mAh

Incredibly powerful and remarkably safe, the Nitecore NL1834 18650 Battery is the best 18650 on the market! These incredible Lithium Ion batteries deliver an impressive 3.7 Volts of power and are capable of holding a charge of up to 3400 mAh, which is 62% more than the average 18650, making them perfect for high performance devices like the intense LED flashlights from Nitecore, as well as video game consoles, appliances, and more. The NL1834 comes with a sophisticated high-performance protected circuit that prevents the cell from overcharging and discharging, which can cause long term damage to the battery. The cell is capable of being recharged over 500 times, making it not only cost effective, but environmentally friendly as well.

Safe Design

Nitecore understands that safe use of a battery is just as important as the battery's production. Designed with safety in mind, the NL1834 features nickel-plated S.S. protectors at both ends that give the cell superior impact resistance, better electrical conductivity and quality oxidation resistance. To prevent against abrasions and other external damage, the cells are coated with a durable metallic film, while its protection circuit is coated with hard plastic. The battery features a unique anode that is designed to resist high temperatures, as well as a micro-porous barrier on the interior that protects the delicate internal components. The cell even comes with a specialized pressure relief valve that will activate in the event the battery experiences rapid temperature increase.


  • Intelligent protection circuit prevents overcharging / over-discharging
  • Nickel-plated S.S. protectors on either end provide quality impact resistance, electrical conductivity, and oxidation resistance
  • Durable metallic film coating to protect against abrasions
  • Micro-porous barrier on the cell's interior protects internal components
  • Pressure relief valve activates in the event of sudden temperature increase


  • Battery Size: 18650
  • Battery Chemistry: Lithium Ion (Li-Ion)
  • Voltage: 3.7V
  • Capacity: 3400 mAh
  • Max Charging Current: 2A
  • Recommended Charging Current: 1A
  • Estimated Charge Cycles: 500 cycles
  • Max Discharge Current: 4A
  • Diameter: 0.72" (18.4mm)
  • Height: 2.72" (69.2mm)
  • Weight: 1.67 oz (47.6 g)
Battery Size:18650
Battery Capacity:3400mAh
Battery Chemistry:Li-Ion
Battery Voltage:3.6 / 3.7
Battery Terminal Type:Button Top
Battery Shelf Life:3 Years
Packaging:Blister Pack
Warranty:Battery Junction 30-Day Warranty, Nitecore 1 Year Warranty
Return Policy:Battery Junction Return Policy
Product Weight:1.679oz
Product Dimensions:2.724" (L) x 0.724" (Diameter)
Country of Origin:CN
Associated Battery Sizes:168A, 18650, 19670, Protected 18650, Unprotected 18650
63 Reviews
87% (55)
10% (6)
2% (1)
2% (1)
0% (0)
97% Recommend this product (61 of 63 responses)
By Ed Johnson
Bloomingdale, NJ
September 11, 2017
I'm confident
Still to be put to the right test to know for sure, but, I'm fairly confident that these batteries will perform well.
By Joe
Oakville, CT
September 2, 2017
Top Shelf Battery
What more need be said. This is a great battery!
By chuck
August 16, 2017
rechargable and saves me on AAA batteries
works as described in my powerful flashlight
Pros3400 mAh powerful
By Micky
Nasville, TN
July 27, 2017
Expensive Electronics deserve a Battery you can TRUST!
Purchased 8 batteries and wasn't disappointed! Yes a little expensive, yet quality/reliability makes the purchase worth while. Rest assured they will be ready when you need them!
By Glen
Coos Bay, OR
July 5, 2017
Protected Li-ion batteries is the correct choice for flashlights.
Bought unprotected 18650 batteries for a Jetbeam lite and they didn't measure one didn't hold a charge & the other lasted 10 min. before fading out. Flashlights require Protected Li-ion batteries when I charged the NL1834 batteries and put them in the lite, it produced the light that was advertised. Battery Junction could be more explicit about which batteries are required for flashlights,and saved the first ones from having to be returned. The right batteries really do perform as advertised.
By David
June 22, 2017
the real deal
These were the real deal ,I weighted them and they came in at 47 grams
By Dan
The Dalles, OR
June 6, 2017
Nitecore 3400mAh Battery
These are a great, long lasting battery! If you are in a situation where you may have to use your light for an extended length of time, these are to ones to get. The downside is that they are expensive, but if you wait till they are on sale, it helps. So far no failures, unlike some other brands of 18650's I have used.
ProsLong use life
By Gary
St. Petersburg, Fl
June 6, 2017
Brighten the Day , Light Up the Night !
Consistently charge to Max. 4.2 Powers my torches to blazing brilliance.
By Paul Shepherd
June 1, 2017
Great Batteries
Work great
By Vincent
Minneapolis, Minnesota
June 1, 2017
This battery works great with my flashlight.
Put the battery into my flashlight the battery was charged and ready to get working.
By The Tech Builder
Orlando Florida USA
April 23, 2017
Great Long Use Batteries
I use these with both my JetBeam Flashlights. I charge them about once a month and use them on a daily basis. The batteries are very good have no issues with charging or longevity. The make fit and feel of the units are very nice. So far I have had one for 14 months and use till dead then recharge. I use a Smart Nitecore Digital charger and it works perfectly. Just remember use a charger that is NOT cheap and has a onboard computer to sense charging and you can squeeze 3-4 years out of a battery.
ProsWell Made good Quality
By Michael
April 21, 2017
Buy when discounted.
Good price with discount
ConsNo case
By ronald dehart
LA - Louisiana
April 17, 2017
this is one awesome battery.
i really like this battery. it holds a charge like forever it seems. i'm very happy with it.
Perrysburg, OH
March 15, 2017
Excellent product
Good product and great quality for the price. I am very pleased with these batteries. I would buy again.
By Sergio
March 15, 2017
Awesome battery
This battery is powering a high intensity flashlight. My old battery would last about 3-4 hours on the brightest setting. This battery lasted about 6-8 hours.
ProsThis battery has super powers.
By Security Man
March 7, 2017
Superior Product
I use them in a Nitecore TM16 Flashlight. Works fine every time for a long time. If you want to light up the night, the TM16 is what you want to do it with and these batteries (power cells) are what you want to use.
ProsA superior product
By William Mayo
February 9, 2017
Although this product was expensive, it appears to be of good quality.
Prosgood quality
Conshigh price
By S. Holt
Highwood, IL>
January 16, 2017
Takes a licking but keeps on working….
These batteries are long lasting between a charge. Thereafter, they charge quickly and hold their charge with no depletion. When they are depleted they stop working completely, so I always keep a spare set on hand, while I re-charge the first set. I recommend them to all.
ProsLong lasting, quick charging.
By Stephen
Palm Springs, CA
December 23, 2016
Consistently great
I've only used a couple of brands of 18650 with my headlamp, and these nitecore 3400mAhn lithium batteries are fantastic. They last SO long! I am not sure if it's the light, the battery, or my imagination, but the light also stays consistently bright almost right up to the time it finally gives out before needing a charge. Sorry this is not more of a technical review, but I'm just an everyday user of a headlamp that I rely on a great deal, and the best I can offer is that I am very, very satisfied with these batteries.
ProsLong, consistent light throughout the span of one charge. The amount of charge, and thus the time between charges is truly remarkable. All around great batteries.
ConsSeems to take a long time to fully charge--but that could be because I am using the device instead of a separate charger. Still, plugging it in at night renders it fully charged by morning.
By Arrow
December 21, 2016
Doesn't live up to its kin.
I have only had this battery in use for a little bit, but one thing I noticed right off was that it didn't maintain the same capacity as the 2300 mAh nitecore NL183. It does however exceed its noted capacity of 3.7 v. This difference is pretty slight, but was surprising that the larger mAh was less. So far, it is still a good battery, and I would recommend it. Especially for a lesser price.
By Rand
Vista, CA
December 20, 2016
Great Battery
Great long lasting battery. This is my 3rd order for these.
ProsLast a long time.
By Specagnt
December 19, 2016
Best value
Got at a good deal during black friday.
By GoodMcC
Pa, PA
December 16, 2016
Great buy
Can't beat it if you get them on sale. Great cells.
By Camo Deputy
Oklahoma County Oklahoma
December 13, 2016
Great value
I purchased this for a fellow law enforcement officer along with a light. He loves it. He uses it for a duty light. Long life.
ProsLong life.
By Steven O'Harra
San Diego, CA
December 13, 2016
As advertised, was able to charge to rated capacity, very satisfied
Solid battery, charged in OPUS charger to full capacity, recommend strongly
ProsSolid battery, charged in OPUS charger to full capacity, recommend strongly. Very satisfied with this unit, handles heavy loads well.
ConsNone to date
By Sean
Los Angeles, CA
December 4, 2016
Long Lasting, High Quality
I use these batteries in ALL my flashlights, high quality and fit in the varied flashlights I own. The 3400's last way much longer than the 2600 batteries I used to run and much brighter than the Panasonic 3.6V's I own. Also added bonus of protection gives peace of mind when charging, all this at a great price -even better when they're on sale!
ProsLong lasting, lots of power at 3.7Vs, high quality at a great price
ConsWas sent a battery that had a tear in its wrapper that started to spread, it was immediately replaced by Battery Junction -GREAT customer service!
By James
Grand Prairie, TX
September 14, 2016
One of the most powerful 18650 batteries on the market
I use these batteries to power my Nitecore SRT-5 and Nitecore SRT-7 LED flashlights. They offer about 30% more run time than the 2600 MA batteries I had been using.
ConsThey are a little pricy
By Ron
East Texas
July 31, 2016
Strong batteries.
I bought these to go with 2 flashlights I bought. I've had great luck with these in the past. They seem to last a long time.
ProsStrong and long lasting.
ConsNone so far.
By Keith
San Juan capistrano, California
May 28, 2016
Longest lasting batteries
Fantastic quality and long lasting will never purchase another brand rechargeable batteries again! Highly recommended!
ProsThe length of run time
By Frederick
May 23, 2016
If They Make A Great Flashlight They Must Make A Great Battery
I will only use a Nitecore battery they make great products.
ProsGreat Batteries.

Nitecore NL1834 18650 3400mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Blister Pack

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