We’ve spent hundreds of hours researching and comparing Ultrafire 18650 4000Mah of all specifications to find the best one for any need (or budget). Here are the results.

The Best Ultrafire 18650 4000Mah of 2020 – Top Rated & Reviewed

2,250 Reviews Scanned

Rank No. #1
Tactical 5 modes 18650 flashlight with two-slot charger and 6 -pack 18650 4000mAh button Top Rechargeable battery.
  • What you get: 1 x pack 18650 S30 flashlight with 1 x pack two-slot charger and 6 x pack 18650 4000mAh button top rechargeable battery.
  • Safe feature: Our 18650 lithium 3.7v rechargeable batteries are CE and RoHS certified with short circuit, over current and voltage surge protections.
  • Superior performance: Beats any weather never encounter a dead battery even during extreme weathers ranging from -40 °C to 85 °C/ -49 °F to 185 °F
  • Note: Button top rechargeable battery(not flat top, not AA or AAA battery, not fit mod/E-CI)
  • 4000mAh high capacity: Each 18650 lithium battery 3.7v rechargeable battery has a high capacity of 4000mAh, can power up your devices for long time
Rank No. #2
UltraFire Super Bright Mini Flashlight, XM-L2 800 Lumen Flashlight Led Torch, Adjustable Pocket 18650 Flashlights Kit (with Charger and 18650 Rechargeable batteries)
  • Extremely Bright: Made of XM-L2 led, up to 800 lumens. Power enough to light up an entire room and 120 meters distance object. Provide an excellent light source wherever you need it.
  • Small Size: SK98 is Very small that you can put it into your pocket, perfect for when you are campping, hiking, walking at nights. Adjustable focus range for different usage, stretching to adjust its focus.
  • Compact Handheld Flashlight, Tough as Nails makes the SK98 Flashlight perfect for Hunting, Camping, Fishing & Outdoor Activity.
  • Durable aluminum alloy material and ultra clear convex lens. Internal wiring applies the high efficient booster circuit, working voltage is wide and can utilize the batteries in the largest extent.
  • SATISFACTION 100% GUARANTEED: Don't satisfied? 1 year warrantly! Replace or Refund!
Rank No. #3
WindFire New Wf-502b Cree Xm-l T6 LED 1000 Lumens 1 Mode Flashlight Torch plus 2x WindFire 4000mAh 18650 Rechargeable Batteries and Smart AC Charger for Camping, Hiking, Hunting & Indoor Activities.
  • CREE XML T6 1000 Lumen LED flashlight
  • Aluminum alloy casing with o-rings for waterproof and shockproof design.
  • 1 switch mode, Easy to operate, One-Button-Operation
  • Powr Source: work with 1 x 18650 Battery
  • Perfect flashlight for outdoor activities like hiking, camping, hunting, and so on.
Rank No. #4
UltraFire LED Rechargeable 18650 Headlamp Flashlight, Kit with 4PCS 3.7V Real Capacity 2600mAh Rechargeable Battery + Batteries Charger For Camping,Hiking,Outdoors
  • 【4 Batteries Included】UltraFire 2600mAh Real Capacity 18650 Li-ion Rechargeable battery that can last up to 5~6 hours with a single charge. High-Capacity Performance of Rechargeable & Long Lasting. (Can not be charge over 8 hours)
  • 【4 WORKING MODES】 This super bright LED head light is prepared to adjust to a full range of lighting needs. You can set up the color mode via pressing the key light.High,low,all and SOS strobe 4 modes.When key light working, press 3 seconds mode button to enter the auxiliary light mode,and you can choose high, low, red light, and SOS strobe.
  • 【IPX-4 WATER RESISTANT】It protects against splashing water from anywhere, no need to worry about rains, snow. Lamp swivels can be 90 degrees adjusted, convenient for you to light different environment. Helpful tool for camping, caving, climbing, mountaineering, fishing, hunting, car repairing, DIY works or emergency.
  • 【ADJUSTABLE & LIGHTWEIGHT】Adjustable elastic headband compatible with all of people’s head size, soft elastic is comfortable to wear, lightweight enough for only 2.85oz.
  • 【WHAT YOU GET】UltraFire HL03 LED Headlamp, 4pcs 18650 2600mAh rechargeable batteries, Wall charger and our worry-free 18-month warranty and friendly customer service.
Rank No. #5
UltraFire 18650 Flashlight with 4PCS UFB22 3.7v 18650 2200mAh Rechargeable Battery and Charger, Single Mode Mini Flashlights 500 Lumens
  • WHAT YOU GET: UltraFire WF-501B Single Mode Flashlight, 4PCS UFB22 Real 2200mAh 3.7v Rechargeable Battery, 1PCS Batteries Charger, Gift Box. (Please note: remove the clear plastic film wrapped on the battery surface before using or charging, otherwise the battery or the flashlight will not work)
  • LONG-LASTING: UltraFire WF-501B max 500 Lumens flashlight, XPE G3 LED bulb, 100,000 hours lifetime. Guarantee your home and outdoor daily worry-free use.
  • ONE MODE: Only single mode, no more annoying to push 5 times to turn off your flashlight. Just ON and OFF, simple but practical enough for you.
  • POWERE SOURCE: 4 PCS 3.7V 2200mAh Li-on Rechargeable Battery and 1PCS Battery Charger (Please remove the clear plastic film wrapped on the battery surface before using or charging,otherwise the battery will not work).
  • 5)UltraFire High-Performance Battery: Long-lasting 5-6 hours, Real 2200mAh, 44 grams. | Low discharge rate | Button Top | no memory effect | High energy density & Pollution-free
Rank No. #6
LED Headlamp Flashlight,10000 Lumens Waterproof 4 Modes Bright Headlight,with 6PCS 3.7V High Capacity Rechargeable Battery + Batteries Charger for Cycling Camping Running Fishing
  • High-Capacity Performance Lasting: This rechargeable High Capacity battery that can last up to 3~6 hours with a single charge.The battery is perfectly protected against heat and high temperature, allowing you to charge safely.
  • LONG-LASTING, POWER DISPLAY: Come with 6PCS 3.7V batteries headlamp, it can work 18~25 hours with fully charged at normal temperature.
  • 4 WORKING MODES: Whether you prefer to use the lowest, most focused setting,the wider and splashier medium and high modes, or the bright emergency-ready strobe light, this movable brightest LED head light is prepared to adjust to a full range of lighting needs.
  • ADJUSTABLE & LIGHTWEIGHT: Adjustable elastic headband compatible with all of people’s head size, soft elastic is comfortable to wear, lightweight enough for only 2.85oz
  • Two flat head plugs or USB plugs are shipped randomly.
Rank No. #7
UltraFire WF501B 18650 Tactical Flashlight,800 Lumens 5 Modes Handheld Mini LED Flashlighs,with 2PCS UFB22 3.7V 2200mAh 18650 Rechargeable Batteries and Charger for Camping Hiking
  • UltraFire WF501B Flashlight: Made of the XPE G3 LED bulb,max 800 Lumens,100,000 hours lifetime. Use aluminum alloy material sturdy and durable enough for long time daily using.
  • 5 MODES: High>Mid>Low>Strobe>SOS,especially suitable for outdoor camping, walking at night, small flashlights can be put into the pocket, which is very convenient for you.
  • ADVANCED DESIGN: Skid-Proof design & Water Resistant design (Highest water resistant level of IPX-6).Don't worry about the use of rainy days outdoors, which will allow you to see the clearer road under the rain(Do not submerge in water directly).
  • WHAT YOU GET FULL FLASHLIGHT KIT GIFT BOX: 1PCS x UltraFire WF-501B Flashlight,2PCS x 2200mAh 18650 Rechargeable Lithium Ion Battery(Please remove the clear plastic film wrapped on the battery surface before using or charging),1PCS x 18650 Battery, High-quality battery to make the flashlight work longer.
  • UltraFire Brand quality service: When you encounter problems when you buy products,Please Feel Free To Contact Us For Help, We will solve the problem for you as soon as possible,Thank You.
Rank No. #8
2000 Lumen LED Tactical Flashlight and 6 Pack 3.7V Rechargeable High-Capacity Battery with Batteries Charger,Adjustable Focus and 5 Light Modes Handheld Flashlight for Camping Hiking Running
  • 【SUPER BRIGHT & PORTABLE】This flashlight has a maximum output power of 2000 lumens. It’s so powerful but small and portable to carry. The Length is 5.2 in.
  • 【Ultra-Bright Clarity】our pocket flashlights are small in size but big on power to give you the best nighttime view.Easily light up an entire room or focus in on objects up to 1000 feet away!
  • 【LONG-LASTING power】You don’t need to be busy replacing batteries constantly, very handy tactical flashlight,with 6 * 3.7V rechargeable battery and 1* charger.After fully charged, the flashlight can last about 4~6 hours on High mode.
  • 【Indoor and Outdoor Versatility】The heavy-duty aluminum alloy body protects the LED lightbulbs on the inside and it’s also splash resistant if it rains or gets wet.
  • All Flashlights and batteries come with free return within 30 days, free repairing within 1 year. We take care of all quality-related issues with a replacement or refund. If you have any problem with the product, please contact us.
Rank No. #9
AFROG Ultrafire Multi-Function/Universal Battery Charger for 18650/18500/17670/17500/14500 Li-ion Battery (WF-139, Black)
  • Brand new, high quality and durable, High energy density,Provide excellent continuous power sources to your device
  • suitable for many kinds of electronic devices,Univeral charger is so great and useful for various types of battery
  • Smart LEDs show charging progress: When the light color changes from red to green, it means the battery is fully charged
  • Advanced MCU control technology and overloading protection: it will automatically stop charging when batteries are fully charged
  • Output: DC 4.2V 450mAh,Input : AC 100V-240V 50-60 Hz
Rank No. #10
EBL Smart Rapid Battery Charger for Rechargeable 3.7V Li-ion IMR Batteries 26650 18650 17500 14500 16340(RCR123), Ni-MH/Ni-Cd AA AAA C Batteries (Batteries Not Included)
  • Intellicharger with iQuick technology, upgraded charging speed up to 500mA, effectively charging batteries, save your time.
  • Compatible for 3.7V Li-ion Lithium-ion IMR INR ICR 26650 25500 22650 18650 18490 18500 18350 16340 RCR123A 14500 10440 Rechargeable CR123 CR123A Li ion Batteries and Ni-MH/Ni-Cd AA AAA rechargeable batteries
  • Portable and travel allowed due to the charger support any DC allowed occasion like using in car etc.
  • MCU controlled technology with advanced “overtime” safety function which could automatically stop to charge while the battery is fully charged.
  • Globally charger with smart LED to show its charging progress, when 3 LED lighting together means the battery is fully charged.

Last update on 2021-03-22 / Affiliate links / Product Titles, Images and Descriptions from Amazon Product Advertising API

Top Rated Ultrafire 18650 4000Mah to Buy Now

 

Why You Should Buy Best Ultrafire 18650 4000Mah from Amazon

Amazon is not the only store that sell Ultrafire 18650 4000Mah. However, there are several compelling reasons why you should buy Ultrafire 18650 4000Mah from them, with the suitable Price and Reviews. Here are five:

(1) Amazon Makes Shopping Ultrafire 18650 4000Mah Personal

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Before you make a purchase for Ultrafire 18650 4000Mah, you want to know that the company you are dealing with is legitimate and that others trust the company enough to make a purchase. You may also like to read what others are saying about the product in the review section. Amazon does all of this quite well.

(4) Amazon Has Great Ultrafire 18650 4000Mah Images and Descriptions

In addition to still images, many of Amazon’s Ultrafire 18650 4000Mah have videos. This makes it easier for you to see exactly what you are purchasing. Amazon’s Ultrafire 18650 4000Mah descriptions are also quite good. In many cases, Amazon repeats the descriptions furnished by the manufacturer. In other cases, they write their own.

(5) The Amazon Site is Easy to Navigate

Navigating the Amazon site is easy. Even though the site is huge, you will not feel overwhelmed when searching for Ultrafire 18650 4000Mah. This is partly due to Amazon’s filtering process. You can search for items by brand, price or user rating. You can also search for specific features.

How to Choose the Best Ultrafire 18650 4000Mah (with Price and Reviews)

Although most Ultrafire 18650 4000Mah are similar, there are several differences worth noting. Here are nine criteria to consider when choosing an Ultrafire 18650 4000Mah:

(1) Ultrafire 18650 4000Mah Price and Reviews

Although price is not the only factor to consider, it is nevertheless extremely important. The price of an Ultrafire 18650 4000Mah should be in line with its value. You can compare Ultrafire 18650 4000Mah reviews to make sure you are getting a fair price. This is easy to do on Amazon.

(2) Demand

The demand for a particular Ultrafire 18650 4000Mah is a good indication of its ability to perform the functions for which it was designed. If a product has been around for a while and still has a high demand, it is likely a good product.

(3) Material

Ultrafire 18650 4000Mah materials differ from manufacturer to manufacturer. Consider where and how you will be using your Ultrafire 18650 4000Mah to determine if one material would be better than another.

(4) Size

Like most products, Ultrafire 18650 4000Mahs come in various sizes. Do you need a large Ultrafire 18650 4000Mahor a small one? Think about where you will use your Ultrafire 18650 4000Mah in order to determine the best size. You can also read the customer reviews on Amazon to see what others are saying about the size of the unit they purchased.

(5) Color

Ultrafire 18650 4000Mahs also come in a variety of colors. Do you need a particular color? You should also consider whether the color of your Ultrafire 18650 4000Mah would have any effect on the efficiency of its operation.

(6) Durability

The durability of an Ultrafire 18650 4000Mah will be contingent on the materials used as well as the quality of the manufacturing process. Additionally, the type of Ultrafire 18650 4000Mah you purchase may affect its durability.

(7) Storage

Will you need to store your Ultrafire 18650 4000Mah? If so, you should consider the size and weight of the Ultrafire 18650 4000Mahto make sure that it can be stored properly. Also, give some consideration to the type of climate in which your Ultrafire 18650 4000Mah will be stored.

(8) Customer Ratings

Customer rating is one of the best criteria for choosing an Ultrafire 18650 4000Mah. It is hard to know exactly how an Ultrafire 18650 4000Mah will perform until you get it home and try it out.

(9) Warranty

Make sure the Ultrafire 18650 4000Mah you are considering is backed by a good manufacturer’s warranty. If it isn’t, you might be better off with another ones.