Range Extender Kit for Duo Series

Sale price £658 Regular price£781
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Sale price £658.00 Regular price£781.00
Shipping: Leaves within 6-7 business days

Overview

This sleek external battery is a secondary battery on the Juggernaut Duo series bikes along with the Juggernaut FS Pro 2/3. Use this battery if you want to ride even further than you can with just the internal hidden battery! A high-quality design and many power options provide reliable power and range to extend your ride! 

Note: This battery has 3 different case heights - the larger 17Ah and 21Ah models may not fit smaller Step-Over frame sizes. Consult the pictures here for battery height and notes below for frame size compatibility.

Compatibility Notes:

(1) 52V16Ah / 52V17Ah Batteries incompatible with 17" Medium Frame
(2) 52V19Ah / 52V21Ah Batteries only compatible with 20" XL Frame
(3) 52V19Ah / 52V21Ah Batteries incompatible with 17" Medium Frame
(4) 52V19Ah / 52V21Ah Batteries only compatible with Large Size Frame

     

    Note: If you have a Juggernaut Duo Series bike you will need a Range Extender plate to connect your battery to the bike - consult this guide if you need help determining which type is on your bike! When buying your battery on this page the plate will be included!

    Wondering about the brand options and what to pick between Top Brand and OEM/Sinowatt? Take a look at this FAQ for some information!

    Compatibility

    Bike Name 52V13Ah / 52V14Ah 52V16Ah / 52V17Ah 52V19Ah / 52V21Ah
    Juggernaut Hub Duo SO / ST
    Juggernaut Classic Duo Step-Over (1)
    Juggernaut HD Duo
    Juggernaut Classic Duo Step-Thru
    Juggernaut Ultra Duo 2 Step-Over (2)
    Juggernaut Ultra Duo 3 Step-Over (3)
    Juggernaut Ultra Duo 3 Step-Thru
    Juggernaut Ultra Duo 4 Step-Thru
    Juggernaut Ultra FS Pro 2 (4)
    Juggernaut Ultra FS Pro 3
    Juggernaut XD FS
    Juggernaut FS Step Thru
    Juggernaut Ultra Eagle (4)

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    Customer Reviews

    Based on 18 reviews
    67%
    (12)
    22%
    (4)
    6%
    (1)
    0%
    (0)
    6%
    (1)
    E
    Eric Whitney
    No range anxiety!

    When I rode my juggernaut FS XD and I took the riding to work route. With my old bike, when I got to my work, I had to plug-in the battery for at least an hour and a half before I went back home. This time I did the full route and still had 50% left! This range is great and I love not having range anxiety!

    C
    Customer
    verry nice.....

    i can ride more 50 KLM no pedaling at 32.5 klm hrs and more than 150 pedaling love it Merci Biktrix you are top bike cant wait to buy one off those XD

    W
    William Laycock
    Great purchase

    Prompt delivery. Excellent customer service. On two separate occasions I called and it was off hours and I did not leave a callback message and the next day they spontaneously called me to ask if they could help me

    C
    Customer
    The best

    The best shipping , the best bikes .and biggest smiles

    J
    Jim Shaw
    New Battery

    I ordered a new extended range battery from Biktrix as I’m planning for a few extended day trips this summer. Curtis quickly got my order in and I was surprised and pleased that it was on sale for $200 off the regular price. It was shipped and got here quickly with no issues. Thanks Curtis and Biktrix!

    W
    Wayne Mulder

    Great

    L
    Lucien Cortez

    WoW it’s great no more range anxiety

    G
    George Parkson
    Nice addition

    The main battery gets good mileage, however I would suggest going with the extender. It fits nicely and can still use the step thru.

    A
    Adam Gagnon

    Excellent customer service. Thanks