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UltraFire U18 - 3400 3400mAh USB Rechargeable 18650 Li-ion Battery
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UltraFire U18 - 3400 3400mAh USB Rechargeable 18650 Li-ion Battery

- Red with Black 185988901

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Main Features:
● 18650 Li-ion battery with Micro USB charging port
● 3400mAh 12.6Wh high capacity, designed for high drain devices
● Reverse polarity / over-charge / over-discharge protection
● 500 charge-discharge cycle times

Parameters:
Rated charging voltage: 3.7V
Constant charging voltage: 4.2V
Max charging voltage: 4.30V + / - 0.05V
Constant charging current: 800mA
Max charging current: 1000mA
Cut-off current: 50mA
Dis-charging current: 5 - 6.3A

Caution: USB cable not included

Specification

General

Brand: Ultrafire
Type: Battery
Battery Type: Lithium-ion
Rechargeable: Yes
Protected: No
Capacity (mAh): 3400mAh
Voltage(V): 3.7V
Charge Current: 800mA
Max. Charge Voltage: 4.30 + / - 0.05V
Max. Charge Current: 1000mA
Discharge Current: 5-6.3A
Charging Time.: 4-5h
Discharge Time (h): 8-10h
Over-charging Protection: Yes
Over-discharging Protection: Yes
Suitable for: Car toys,CD Players,Digital Camera,Flashlight,MD,PDA,Portable Games,RC Toys

Dimension and Weight

Product weight: 0.0480 kg
Package weight: 0.0800 kg
Product size (L x W x H): 7.00 x 1.80 x 1.80 cm / 2.76 x 0.71 x 0.71 inches
Package size (L x W x H): 13.50 x 7.50 x 2.80 cm / 5.31 x 2.95 x 1.1 inches

Package Contents

Package Contents: 1 x UltraFire U18-3400 18650 Li-ion Battery
UltraFire U18 - 3400 18650 3400mAh USB Rechargeable Li-ion Battery- Red with Black
UltraFire U18 - 3400 18650 3400mAh USB Rechargeable Li-ion Battery- Red with Black
UltraFire U18 - 3400 18650 3400mAh USB Rechargeable Li-ion Battery- Red with Black
UltraFire U18 - 3400 18650 3400mAh USB Rechargeable Li-ion Battery- Red with Black
UltraFire U18 - 3400 18650 3400mAh USB Rechargeable Li-ion Battery- Red with Black

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Customer Reviews

4.94 out of 5
  • 34
  • 2
  • 0
  • 0
  • 0
See all 36 reviews Write a Review
  • UltraFire U18
    Yes (0) Color: Red with Black
    Pretty damn good
    These batteries are pretty popular with the vape culture and I’d have to say that these are pretty good because of the pricing and easy access. The batteries tend to get pretty warm during charging but that’s the only issue I’ve noticed. The batteries don’t drain super fast and to your gain they charge pretty quick too!
    Suggestion
    - no cons

    Feb 15,2018

  • Nashgaar
    Yes (0) Color: Red with Black
    Ultrafire 18650
    Very useful, that USB connector is a great and very usable idea. Strong battery. Came very well packaged.
    Suggestion
    Nothing at all.

    Feb 23,2018

  • Nunz
    Yes (0) Color: Red with Black
    Happy with it
    The ability to charge it without needing a charger is fantastic.
    It claims to use Panasonic cells.
    I'm happy with it, I use it on a Convoy flashlight and it performs perfect
    Suggestion
    I have no cons to this product, I have used it for a long time now and can't find any problem

    Jun 23,2018

  • Martin
    Yes (0) Color: Red with Black
    18650er Akku mit USB-Anschluß
    Versandzeit war absolut im Rahmen.
    Artikel entspricht der Beschreibung.
    Benutze die Akkus in einer BLF A6 und einer Convoy S2+ 365nm Nichia UV.
    Dort passen sie rein. Etwas knapp, aber es geht.
    Für mich eine gute Lösung um auf Reisen kein Ladegerät mit nehmen zu müssen.
    Suggestion
    Nothing so far.

    Feb 05,2017

  • SPYNonStop
    Yes (0) Color: Red with Black
    UltraFire U18 - 3400mAh USB Rechargeable
    Boa qualidade de construção / Good build quality
    3400 Amperes / 3400 Amps
    Ideal para lanterna "UltraFire 1600Lm Cree XML T6" / Great for use in flashlight "UltraFire 1600Lm Cree XML T6"
    Suggestion
    Não tem o mesmo tipo de envio para Portugal / Does not have the same type of shipping to Portugal

    Jun 29,2017

  • Ale
    Yes (0) Color: Red with Black
    Batteria Ultrafire
    La utilizza da qualche mese su torcia Convoy c8 + xpl ed ancora non ho riscontraro alcun problema. la ricarico con carica batterie della nictecore.
    Non ho verificato con nessun strumento la capacità nominale della batteria se è corrispondente al vero.
    comunque ne ho acquistate altre torce della Convoy

    Mar 22,2019

  • plrk
    Yes (0) Color: Red with Black
    UltraFire U18 - 3400 3400mAh USB Rechargeable 18650 Li-ion Battery
    UltraFire U18 - 3400 3400mAh USB Rechargeable 18650 Li-ion Battery its great you dont have to use charger but micro usb
    Suggestion
    zero

    Jul 07,2017

  • redfox2
    Yes (0) Color: Red with Black
    UltraFire U18 - 3400
    Perfect for flashlights, good quality and high capacity, fast delivery.
    Suggestion
    no

    Oct 01,2016

  • Anonymous
    Yes (0) Color: Red with Black
    Great battery!
    Able to charge via micro usb cable.Cheapest in the market(including shipping charges)Value for money!Reliable battery with trusted capacity as stated!
    Suggestion
    NIL CONS

    Aug 19,2017

  • Gergely
    Yes (0) Color: Red with Black
    UltraFire U18
    UltraFire U18 is good quality product. USB recharging is a really good feature. I bought 3 pieces. All good.
    Suggestion
    No.

    Feb 25,2018

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