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?
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!
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 Ultra Eagle (4)|
Need A Hand?
WoW it’s great no more range anxiety
The main battery gets good mileage, however I would suggest going with the extender. It fits nicely and can still use the step thru.
Excellent customer service. Thanks