Range Extender Kit for Duo Series

Sale price CA$649.00 Regular priceCA$899.00
Save CA$250

Looking to take your ride even further? This is what you need to ride even longer!

If you purchase a Range Extender Battery here it will include the connector plate as well for extra savings!

Shipping: Leaves within 6-7 business days
Sale price CA$649.00 Regular priceCA$899.00
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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!

Which Connector type to get?

Range Extender Connector

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 incompatible with 17" Medium Frame
(3) 52V16Ah / 52V17Ah Batteries only compatible with 20" XL 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!


    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 FS Step Thru
    Juggernaut Ultra Eagle (4)

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    Customer Reviews

    Based on 12 reviews
    Wayne Mulder


    Lucien Cortez

    WoW it’s great no more range anxiety

    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.

    Adam Gagnon

    Excellent customer service. Thanks

    Robert DenHerder