When it comes to buying 18650 4000mah Battery, you will find many brands selling the same product. And this will make you confused because you will not know which one of these products will meet your needs and desires. That’s why we have compiled the 10 best 18650 4000mah Battery considering a lot of factors such as price, quality, durability, customer satisfaction, and many more. Hope you will find the right product for you. Let’s check it now.

Best 18650 4000mah Battery

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 in stock
5 new from $10.80
Amazon.com
as of September 25, 2022 10:22 pm

Features

  • Nominal capacity: 4000mah 4400mAh 6000mah
  • Product size: 19 x 37 x 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
 in stock
Amazon.com
as of September 25, 2022 10:22 pm

Features

  • 【Package Content & Best Customer Service】Package include 1 x flshlight + 10 x 5000mahbatteries + 1 x charger. If you have any questions about the products, please contact us, we will help you to solve it. After you contact us, we will reply you in 24 hours.
  • 【Bright Portable Flashlight】2000 high lumen (max) LED Flashlight,Ultra wide beam effortlessly illuminates a whole room or backyard.
  • 【Long Lasting】Up to 6 hours (Medium-beam mode) of powerful, non-diminishing brightness from the included premium rechargeable High Capacity battery.
  • 【5 Modes and Zoomable】Adjustable focus with 5 modes: High, Medium, Low, Strobe, and SOS/Emergency protect your safety. Retractable zoom the light to adjust the focus from wide to narrow.
  • 【Waterproof and Durable】IPX6-rated water resistant and designed for use in heavy rain. Its durable aluminum body and shock-resistance endure rough handling.
 in stock
Amazon.com
as of September 25, 2022 10:22 pm

Features

  • 【SAFETY PERFORMANCE】this 2-slot battery charger complies with the directives and Standards requirements by CE RoHS FCC UL.Built-in intelligent circuit protection will protect against short circuit, overheat,over voltage,Meanwhile,the discharge function can decrease damage for battery.Do not charge damaged / inferior battery.
  • 【UNIVERSAL COMPATIBILITY】this battery charger is compatible with rechargeable battery such as Li-ion ICR/IMR INR 3.7V battery(26650, 26500, 25500, 22650, 22500, 20700, 18700, 18650, 18490, 18350, 17670,17500,16340(RCR123),14500, 10440, 10340) and Ni-MH Ni-Cd rechargeable batteries A/AA/AAA/AAAA/C batteries,etc.
  • 【VISIBLE CHARGING PROCESS】the build-in LCD display will monitor real time charging status and battery percentage independently while charging, making the charging process visible and efficient.
  • 【WHAT YOU GET】1 x Victagen universal 2 slots battery charger, 2 x 18650 rechargeable batteries, 1 x 2.1 USB charging cable, 1 x user manual, 30 Days Free Refund, lifetime
  • 【CUSTOMER SERVICE】Victagen strives to provide 100% satisfactory products and service to our customer. If there exists any questions about the battery charger, please feel free to contact us, we will respond in 24H.
 in stock
Amazon.com
as of September 25, 2022 10:22 pm

Features

  • ⚡【INTELLIGENT UNIVERSAL CHARGER】 The Battery Charger can charge simultaneously rechargeable batteries of different specifications.Suitable for 3.7V Li-ion rechargeable batteries -- 26650,18650,18500,18350,14650,16650,16340,14500,10440.
  • ⚡【 CONVENIENT CHARGING INTERFACE】 USB charging help travelers can charge lithium ion batteries anytime anywhere, especially when you don’t have enough outlet,you can even simply plug into your laptop or other device.
  • ⚡【 INTELLIGENT CHARGING】The charger can automatically select the best charging current and support 2-slot simultaneous independent charging.Intelligent LED charging status indicator, when the battery is full, it changes from red to green and the charger will automatically stop charging.
  • ⚡【 SAFE CHARGING】:Safe and fire prevention PC+ABS material Battery Charger, with heat-resisting, low temperature resistance and scratch resistance;the battery will not be over-charged and over heat.
  • ⚡【PREMIUM SERVICE】 If you have any questions, please tell us at first time. We will provide professional service to solve your problems. There is a totally risk-free purchase.
 in stock
Amazon.com
as of September 25, 2022 10:22 pm

Features

  • Pay attention:they Are 3.7V 350MAH ICR 10440 Battery,Can't Replaced The 18650 Battery.also they are not AA size batteries,pls make sure the size before you place an order.
  • More than 2000 times Long cycle life,bring you high quality experience.
  • Do NOT use these batteries in electrical devices that require 1.5V batteries.
  • Dimension: 10mm*44mm
  • Battery appliations:med alert, alert pendant,Flashlight,headlamp,lantern,LED light,weapon light.garden light.
 in stock
10 new from $4.83
Free shipping
Amazon.com
as of September 25, 2022 10:22 pm

Features

  • This lithium polymer battery charger contains current and Vmax detection program to prevent your batteries from overcharging, short circuit protection Reverse connection protectio
  • Using a usb port to charge, you can charge the battery on the charging head, on the car charger, or on the power bank, wide range of use, more convenient for daily use
  • Stops charging automatically if the temperature of charger or battery gets too high when charging
  • Stainless steel rail is more durable and smooth
 in stock
2 new from $27.99
Free shipping
Amazon.com
as of September 25, 2022 10:22 pm

Features

  • 【SAFETY PERFORMANCE】this 2-slot battery charger complies with the directives and Standards requirements by CE RoHS FCC UL.Built-in intelligent circuit protection will protect against short circuit, overheat,over voltage,Meanwhile,the discharge function can decrease damage for battery.Do not charge damaged / inferior battery.
  • 【UNIVERSAL COMPATIBILITY】this battery charger is compatible with rechargeable battery such as Li-ion ICR/IMR INR 3.7V battery(26650, 26500, 25500, 22650, 22500, 20700, 18700, 18650, 18490, 18350, 17670,17500,16340(RCR123),14500, 10440, 10340) and Ni-MH Ni-Cd rechargeable batteries A/AA/AAA/AAAA/C batteries,etc.
  • 【VISIBLE CHARGING PROCESS】the build-in LCD display will monitor real time charging status and battery percentage independently while charging, making the charging process visible and efficient.
  • 【WHAT YOU GET】1 x Victagen universal 2 slots battery charger, 2 x 18650 rechargeable batteries, 1 x 2.1 USB charging cable, 1 x user manual, 30 Days Free Refund, lifetime maintenance.
  • 【CUSTOMER SERVICE】Victagen strives to provide 100% satisfactory products and service to our customer. If there exists any questions about the battery charger, please feel free to contact us, we will respond in 24H.
 in stock
Amazon.com
as of September 25, 2022 10:22 pm

Features

  • Rechargeable Batteries size:21mm x 70mm, Capacity: 4000, Voltage:3.7V, Max continuous dischaege: 35A
  • Provides 24-hour after-sales service and will serve you wholeheartedly.
 in stock
Amazon.com
as of September 25, 2022 10:22 pm

Features

  • 【CELL SPECIFICATIONS】 4000mAh 3.7V rechargeable type. Note: Please charge it In order to avoid a dead battery when using it for the first time
  • 【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 Battery Pack with the nominal voltage of each cell = 3.7 V. High continuous discharge rate, 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.
 in stock
4 new from $24.99
Free shipping
Amazon.com
as of September 25, 2022 10:22 pm

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.

Quality is an important factor when buying a product even if the product has distinctive highlights, but its quality is failing and poor then, that product is not suitable and not the right choice. Here, we collected the top 10 18650 4000mah Battery with their features and based on research and other factors, and each one of them has high quality and buyers shared a high level of satisfaction through their use of these products.

Thank you for choosing to look through our article. Don’t forget to click the product link on Amazon so you can have the product you love in the shortest amount of time. Hopefully, you can find the product that best suits you.

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