Are you searching for the best 4000mah 18650 battery? Confused with too many options? If that is your situation, you have come to the right place. This is your ultimate guide to buying the 4000mah 18650 battery.

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10 Best 4000mah 18650 battery Reviews in 2022

1. Tokeyla 5 modes 18650 flashlight with two-slot charger and 6 -pack 18650 4000mAh button Top Rechargeable battery.

Features :

  • 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

Additional Info :

Item Dimensions
Weight 0.16975594174

2. 18650 Rechargeable Li-ion Battery 3.7V 4000mAh Large Capacity Lithium Batteries Sa-fe Accessories for LED Flashlight, Emergency Lighting, Electronic Devices etc. 2/4 Pieces (Black) (2 pcs)

Features :

  • 🔋 【Wide application】: 18650 3.7V 4000mAh rechargeable battery type has great adaptability, which can be widely used for electronic devices, such as LED flashlights, emergency lights, portable devices, power bank, headlights, toys, remote controls , etc.
  • ⚡ 【Long-lasting and rechargeable】: This product is made of durable materials and the quality is very good. Small size and light weight, high capacity, very portable. It can provide you with the necessary charging power source or better help you in emergencies such as travel, emergencies, outdoor adventures, camping or other dangerous situations
  • 🔋 【Multiple protections】: The product provides 6 protections, such as temperature protection, short circuit protection, overcharge protection, and overcurrent protection to stabilize the battery. High performance and high reliability, durable replacement for the old or damaged one. Store in a cool, dry place.
  • ⚡ 【Safe and environmentally friendly】: Safe and environmentally friendly, no harm to the environment. The anti-corrosion shell can effectively protect the battery and extend its service life. Preventing waste of non-rechargeable battery. No memory effect, the large battery capacity, allows you to worry no more about your device without power.
  • 🔋 【After-sales service】: 18650 rechargeable batteries have passed rigorous testing to ensure normal use, please rest assured to buy. It is reliable in quality and durable. If you have any problems, please contact us at any time and we will offer you a solution as soon as possible.

Additional Info :

Color yellow+black

3. Super Bright 2000 Lumen 18650 Tactical Flashlight and 6PCS 3.7V 9900mAh Rechargeable Battery+Batteries Charger,Zoomable, Water Resistant, 5 Modes Handheld Flashlight

Features :

  • SUPER-BRIGHT: 2000 lumen (max) LED Flashlight,Ultra wide beam effortlessly illuminates a whole room or backyard.Adjustable focus with 5 modes: High, Medium, Low, Strobe, and SOS/Emergency protect your safety.
  • LONG-LASTING: Up to 6 hours (Medium-beam mode) of powerful, non-diminishing brightness from the included premium rechargeable High Capacity battery.
  • TOUGH & RELIABLE: IP65-rated water resistant and designed for use in heavy rain. Its durable aluminum body and shock-resistance endure rough handling.
  • 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.
  • 12 months warranty and 30 days money back guarantee. Please rest assured to buy, no worries at all.Two flat head plugs or USB plugs are shipped randomly.

Additional Info :

4. Skywolfeye 8 Pack 3.7v 5000mAh 18650 Rechargeable Battery and 2 Slot Charger with 1Pcs 18650 Flashlight Ultra Bright 5 Modes for Camping, Hiking, Outdoor, Emergency

Features :

  • Ultra Bright:Intense spotlight for long range observation can up to 600 feet, Circle Floodlight for large area illumination.2000-lumen (max) powerful led.
  • Five Light Modes&Zoomable: High / Middle / Low / Strobe / SOS, With ON / OFF button, easy to operate.
  • Works well outdoor, Good for search missions, routine patrolling, cave exploring, etc. Perfect as pocket flashlight, flashlight torch light, emergency flashlight, torch flashlight, rechargeable flashlights high lumens, flashlight rechargeable,mini led flashlight, led camping flashlight, etc.
  • Powered Source: 8 Pcs 3.7V 18650 Li-on Rechargeable Battery (Included) or 3aaa Batteries(Not Included) and 1Pcs Battery Charger.
  • Satisfaction Guaranteed: 2 Year Worry-free Warranty. If there are any issues with the flashlights at all, We will replace or refund your purchase, no worries at all.

Additional Info :

Color Black
Item Dimensions
Weight 0.330693393

5. 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)

Features :

  • 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.

Additional Info :

Item Dimensions
Height 1.4
Width 2.9
Length 5.2
Weight 0.26

6. 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.

Features :

  • 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
  • Power Source: work with 1 x 18650 Battery
  • Perfect flashlight for outdoor activities like hiking, camping, hunting, and so on.

Additional Info :

Color Black
Item Dimensions
Height 0.7874
Width 0.7874
Length 3.77952
Weight 0.1763698096

7. PWGN Cycle Ni-Mh Pre-Charged Rechargeable Batteriesndegdgswg 3.7V 18650 4000Mah 4400Mah 6000Mah Lithium Battery Pack Rechargeable Battery Megaphone Speaker Protection Board 4400Mah

Features :

  • Nominal capacity: 4000mah 4400mAh 6000mah
  • Product size: 19*37*66mm Voltage: 3.7 V
  • Standard weight: about 90g
  • recommended charge current: 2A
  • The battery pack is widely used in headlights, miner’s lamp, flashlight, searchlight, loudspeaker (loudspeaker), wireless monitoring equipment, instrumentation, traffic signs, portable small appliances

8. 【2021 Newest】RunningSnail Emergency Crank Radio,4000mAh-Solar Hand Crank Portable AM/FM/NOAA Weather Radio with 1W Flashlight&Motion Sensor Reading Lamp,Cell Phone Charger, SOS for Home and Emergency

Features :

  • ★【2021 Newest Design MD-090P】Based on MD-090 emergency flashlight radio and customer’s feedback, we’ve optimized and upgraded a lot of features. A biggest 4000mAh replaceable li-ion battery can charge more than one smartphone, the most powerful lighting functions include super-bright 3 mode flashlight and motion sensor reading lamp. Also, external antenna, electricity label, comfortable hand crank, tap switch fit all your needs. The MD-090P is the best value for emergency radio in this market.
  • ★【The Most Powerful Life Saver Radio】Nature is unpredictable, but you can be prepared and ready in the face of her fury. The emergency crank radio with weather band and phone charge professionally get weather broadcasts the latest weather and all hazard information for your areas like hurricanes, tornadoes and so on from 7 NOAA stations at a crystal-clear sound. Earns a critical time for you to get full preparation advance, keeping you and your family safe with this emergency weather radio.
  • ★【4 CHARGING MODES】Compared with 2000mah or 1000mah emergency radio on the market, the solar radio has upgraded to 4000mAh replaceable 18650 Li-ion battery, found in every household and easy to buy in the local market or amazon store. Also, Micro USB charge, Solar charge, Hand-crank could also supply the flashlight radio last for days after the storm had passed until the power back on. No matter what emergency situation you find yourself in, this hand crank light never run out of electricity!
  • ★【Super-Bright 3 Mode Flashlight And Motion Sensor Reading Lamp】 If you are an outdoor enthusiast or need to walk in places without lights, the flashlight radio with 3 modes flashlight is a great alternative, which farthest lighting range exceeds10m, farther than the most other solar emergency radio. Also, a reading lamp with a Motion sensor will greatly help you get up in the mid-night to avoid waking your family. Add to cart, you will never regret that you purchase this crank flashlight radio!
  • ★【We Care About You and The ones Your loved】 In the past years, Our emergency radio has helped more than 10,000,000 USA Civilians to live through the hurricane, tornadoes and snowstorm season, like “Dorian”, “Harvey, “Irma”, etc. Your voice drives us to be the best. We back our emergency weather radio with 18-months Warranty! If you are not satisfied with this NOAA weather radio, we can refund you immediately as you contact us. And our customer service is here for you 24/7 for anything you need!

Additional Info :

Color Green
Item Dimensions
Height 3.18897
Width 2.48031
Length 6.2992
Weight 0.8708259349

9. 4 Piece IMR 18500 1300mAh 3.7V High Drain LiMn Demonfire Rechargeable Battery with Button Top

Features :

  • Long-lasting 1300 mAh Li-Mn rechargeable button top batteries with 16.5A amp limit. 18500 batteries are commonly used in solar landscape lighting.
  • Safe chemistry LiMn batteries with high thermal stability significantly reduces risk of explosion or bursting into flames when properly charged, used, and stored
  • No memory effect and can be recharged over 300 times when either partially or fully drained
  • Includes four dual battery storage cases to safely and securely store and protect your batteries
  • US based seller dedicated to the highest standards of quality and service

Additional Info :

10. 3.7 Volt 4000mAh Rechargeable Battery with Wire and JST Connector

Features :

  • 【CELL SPECIFICATIONS】:18650 4000mAh 3.7V rechargeable li-ion lithium battery. Note:In order to avoid a dead battery when using it for the first time, please charge it before using it.
  • 【WIDE APPLICATION】:This 3.7V 4000mAh rechargeable battery can be used in battery-powered equipment, such as replacing rechargeable battery roller motors, mobile power supplies, solar generators, electric bicycles, power walls, etc.
  • 【HIGH PERFORMANCE】:DIY Professional 18650 Battery Pack with the nominal voltage of each cell = 3.7 V.High continuous discharge rate, Low recurrent operation cist, short circuit and over-current protective.
  • 【SAFETY ASSURANCE】:Temperature protection,Intelligent protection IC board,Stable Capability,Durable,A+ battery cell,Over charge protection,Over discharge protection,Short-circuit protection.
  • 【BATTERY SIZE】: Φ19mm*L:69mm. The connection length is 2.7 Inches. Please Check the battery size and connector type.

Additional Info :

Factors You Should Consider Before Buying the 4000mah 18650 battery

As you already know, research is essential before making any purchase. So, there are some factors you should consider before starting your research. This is important so that you can make your entire buying process as hassle-free as possible.

Remember, your time has as much value as your money. So, there are a few things you should determine which will affect your research as well.

There are a few questions you should ask yourself to determine your course of research on the 4000mah 18650 battery:

  • Is this 4000mah 18650 battery serving the purpose of purchase? What are your expectations from the product?
  • What functions must the 4000mah 18650 battery have? Are there any specific functions that you are seeking in the product?
  • Is there a specific budget, or is the budget flexible?
  • Will the 4000mah 18650 battery require maintenance and upkeep costs?
  • Are you looking to buy the 4000mah 18650 battery online or offline? What will be the best places to purchase the product?
  • Where will you seek reliable information on the 4000mah 18650 battery?

Having multiple options from various brands can get confusing, so ask yourself these questions to narrow down your research.

Once you determine your expectations from the 4000mah 18650 battery and your price range, you decide which ones you must research. The research will help you determine the pros and cons. But before that, where will you get the reliable information to conduct your research?

Sources for Research

It’s 2022, and your best sources for information and research can be found online. Any 4000mah 18650 battery and you will find the best selling online marketplaces available. Visit any or each of them to learn about the specifications and prices given on your 4000mah 18650 battery.

You will be able to find the best deals out of all the options. You can also watch some YouTube videos on the product to see for yourself the functionality of the 4000mah 18650 battery.

Advantages of Buying Products from Online Sites

Online sites provide a variety of benefits that make your selection and buying process easier. Here are some of the advantages of buying products from online sites:

Best Prices

Reliable online sites give you the benefit of comparing prices and finding the best deals. Platforms like Online.com work with manufacturers directly to provide better deals. And the coupons and occasional discounts add to it.

There are no intermediaries in between to make the buying process easy. And the best part? No trouble of going to the shop.

Reliability

Renowned online sites like Newegg, Online, Walmart have branches all over the country. Their transaction and delivery policies are reliable compared to other e-commerce platforms.

Huge Selection

More Variety – the best part about online shopping platforms. These sites give you access to a vast variety of options to choose from.

Suppose you go to online.com. Search 4000mah 18650 battery and up comes options of the product in different prices, brands, and specs. You get to browse these options from the comfort of your home and save time.

You can choose the one that fits your need from your preferred seller. Yes, online platforms even give you the option to choose your seller.

Credibility

These online sites have numerous customer reviews of the products shown. So, you know which product is authentic and which seller is authorized. And for these facilities provided, they are trustworthy and credible.

Other additional benefits of shopping from online sites would be the facility of easy return and record of the purchase. Online sites are constantly making changes to make shopping easy and hassle-free from the comfort of our homes.

How to Select the 4000mah 18650 battery

Making your final decision can pose to be a challenge. But worry not. We have a few suggestions to make your selection process easier.

Before that, we would recommend you opt for sites like Online, Walmart, Newegg, and Best Buy for your purchase.

So the factors you should consider while selecting your 4000mah 18650 battery would be:

Price

Hop on to any of these sites and search the options you have shortlisted. Then compare the prices and look for discounts. Don’t forget to factor in shipping charges as well.

Once you get the best favorable deal, you can opt for the 4000mah 18650 batteryto match your need.

Brand

Price and brand are somewhat interrelated. Usually, high-end brands charge more. But higher price does not mean a better choice.

So, opt for the brand that meets your need the best.

Function

Factor in the functionality of the product as it is very crucial. Check if the specs meet your need. Consider buying the one that will last in the longer run.

Understand the 4000mah 18650 battery specs and functionality to determine its use for you.

Customer Reviews

As we mentioned before, online sites usually have a review section. This section is filled with customer feedbacks and even pictures of the product.

Browsing through these reviews is the smartest thing to do. These reviews allow you to comprehend how the product will work for you. You can even determine the pros and cons of these reviews.

Check the rating on the website to learn if the seller is delivering the 4000mah 18650 battery as expected by the other buyers.

Final Words

All these factors will contribute to choosing your best 4000mah 18650 battery that meets your expectations. So, use your time efficiently.

And that is all for the ultimate guide to buying the 4000mah 18650 battery. We hope you can make your purchase confidently. Happy Shopping!

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