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Vapcell N40 18650 10A Flat Top 4000mAh Battery - Genuine

Vapcell

$ 7.49

SKU: vapcell-n40
QuantityPrice per item
1 to 2$ 7.49 each
3 to 24$ 7.34 each
25 to 49$ 6.67 each
50 to 199$ 6.37 each
200 to 999$ 5.99 each
1000 to + $ 5.92 each

This product is eligible for discounts depending on how many you buy! See the table above for pricing at different quantities. You can purchase other products in the same category (batteries, chargers, or accessories) and it will add to the wholesale discount. Add some products to your cart to test! Please note that during special sales you may see no quantity pricing table above in which case the sale price is the price no matter the quantity.


A 4000mAh 18650?  Yep it's real.

This is the highest capacity 18650 battery in existence.

Vapcell direct. These batteries are direct from Vapcell.

    Priced per battery, not per pair.

    Vapcell N40 18650 10A 4000mah Specifications:

    • Size: 18650
    • Approximate Diameter: 18.3mm +/- 0.2mm
    • Approximate Length: 65.0mm +/- 0.3mm
    • Brand: Vapcell
    • Manufacturer Rated Max Discharge Current: 10A
      • Max Discharge Current: 12.5A (with 60 °C temperature cut)
    • Manufacturer Rated Typical Capacity: 4000mah
    • Manufacturer Rated Minimum Capacity: 3850mah
    • Nominal Voltage: 3.6V
    • Peak Voltage: 4.2V
    • Protected: NO
    • Style: Flat Top
    • Color: Red and White
    • Origin: China

    Manufacturer Discharge Graphs:

    N40-2.bmp

    N40-4.bmp

    N40-3.bmp

    Batteries are sold individually.

    If your battery is damaged or defective on arrival (will not take its first charge, or has issues with its first cycle), please let us know within 14 days of receiving your order and we'll make it right. Please read our complete store policy on defective products here for more information and to see if you're eligible.

    Manufacturer ratings: Please see more information regarding manufacturer ratings here.

    Battery Warning

    Warning: Lithium ion batteries may explode or burn due to improper use. Using these batteries for purposes not intended by the manufacturer, including outside a battery pack and/or without a BMS, may cause severe injury and damage. We are not responsible for any injuries caused by lithium ion batteries - use at your own risk.

    All rechargeable batteries have inherent risks under any circumstance. Use caution with working with li-ion batteries (lithium-ion), LiPo (lithium ion polymer), and any rechargeable cells (together "rechargeable batteries"), as they have dangerous charging characteristics and are known to explode or burn if mishandled. A purchaser and user of rechargeable batteries should educate themselves on rechargeable batteries, especially as to charging, discharging, assembly, and storage. Learn more about proper storage and care for rechargeable batteries here. We are not responsible for any damage caused by the misuse or mishandling of rechargeable batteries.

    Here are a few tips:

    • Never completely discharge batteries (usually below 2.5V for li-ion or 2.0V for LiFePO4, check datasheet)
    • Charge fully (usually to 4.2V for lithium ion or 3.6V for LiFePO4) before first use
    • Never charge batteries to more than their full charge voltage
    • Do not charge unattended
    • Do not store your li-ion batteries fully charged for an extended period of time (weeks or more)
    • If you must store your battery for a long time, only store in a case or individual box in a cool and dry place at approximately 3.5-3.7V for li-ion or 3.2V for LiFePO4
    • Use only high quality battery chargers
    • Do not expose to heat
    • Do not connect the positive contact to the negative contact without an appropriate load
    • Never exceed the battery's specifications
    • Never try to charge or discharge li-ion batteries with battery chargers that are not made for li-ion batteries
    • Always charge these batteries on and within fireproof material
    • Never leave rechargeable batteries in a recharging station unattended
    • Do not use any rechargeable battery or charger if any visible damage is present, or if known mishandling, accidental or otherwise, has occurred
    • Always store and transport rechargeable cells in a safe, non-conductive container (never keep a spare battery loose in a pocket, purse, etc. and always use protective cases)
    • Properly dispose of all battery cells and chargers in accordance with local laws and mandates (if you're unsure, contact your local municipality)
    • If a rechargeable battery overheats, hisses, or bulges, immediately quarantine the battery from any combustible materials - ideally, take the battery outside
    • If a rechargeable battery catches fire, the FAA recommends pouring water or soda on the battery and surrounding areas - ideally, use a foam extinguisher to quell the fire

    By purchasing this product, you agree that seller makes no warranties whatsoever with respect to the goods sold on this website, including any (a) warranty of merchantability or (b) warranty of fitness for a particular purpose, whether express or implied by law, course of dealing, course of performance, usage of trade or otherwise. Buyer acknolwledges that it has not relied upon any representation or warranty made by seller, or any other person on the seller's behalf. If purchasing for resale, buyer assumes all responsibility and agrees to forward all notifications and warnings to the purchaser.

    Customer Reviews
    4.6 Based on 12 Reviews
    5 ★
    67% 
    8
    4 ★
    25% 
    3
    3 ★
    8% 
    1
    2 ★
    0% 
    0
    1 ★
    0% 
    0
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    Filter Reviews:
    WS
    06/01/2025
    William S.
    United States

    Vapcell N40 18650

    Great product ! Runs perfectly and the carrying case is a nice touch

    • What device/application do you use this with? Thermal scope
    CS
    04/24/2025
    charles s.
    United States

    Vapcell N40 is my favorite 18650

    The Vapcell N40 is my favorite 18650 because of the capacity and plenty of amperage for 18650 flashlights etc. They have always performed properly and completely.

    • What device/application do you use this with? High Power flashlights
    RH
    04/24/2025
    Roger H.
    United States

    Solid Batteries

    I don't believe they are 4000 so they lose a star for the misrepresentation, however they are good batteries for the price. I go 24 hours with juice left inbetween battery changes.

    • What device/application do you use this with? Geek Vape L200
    PB
    12/05/2024
    Paul B.
    United States

    5 stars

    Exceeded my expectations!

    • What device/application do you use this with? LED motion detectors for my yard.
    BB
    12/04/2024
    Beauchamp B.
    United States

    Vapcell N40 Rechargeable Battery

    I purchase three of the Vapcell N40's and they all tested 200 plus Mha above the listed specs, one tested 4402 mah I have to wait and see how they holdup but for now I'm well satisfied with them.

    • What device/application do you use this with? High powered Flashlights

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