Replacement Battery

Type
Size
$1,099.00 USD Add to Cart

Add a bigger battery to increase range and ride time.

Standard

These batteries, also known as Reention Dorado batteries, fit into the downtube frame of your Biktrix eBike. Made with top-of-the-line Samsung and Panasonic cells, it doesn't get much better than this.

  • Juggernaut Classic
  • Juggernaut Ultra 1000 & 1000 Pro
  • Juggernaut Ultra FS
  • Stunner LT
  • Stunner X
  • Stunner Step-Thru
  • Stunner Step-Over
  • Swift Step-Over
  • Swift Step-Thru
  • Skycap

Hidden

These replacement batteries are enclosed within the frame of:

  • Juggernaut Ultra Beast (48V 15Ah)
  • Juggernaut Duos (52V 17.5Ah)
  • Swift Lite (36V 10.4Ah)

Downtube

These downtube replacement batteries are compatible with the following eBikes:

  • Juggernaut Ultra Eagle (52V 21Ah only fits the large frame Eagle)
  • Juggernaut Duos (additional battery)

Based on 15 reviews Write a review

Customer Reviews

Based on 29 reviews
90%
(26)
3%
(1)
0%
(0)
7%
(2)
0%
(0)
R
R.M.
48 v 21 amp battery add

Just received my second battery, a 48 v x 21 amp addition to the 52 v 17.5 amp I bought with my bike last June. The purpose is to avoid range anxiety. I took out the bike on a 35° day to try it out. After 20 miles, the 48 v battery said it was done and I skedaddled home. But after I brought the battery inside to warm up, I still had 3 dots on the battery indicator, not the one. So, don';t really know the range yet. I can get 30 miles on the 52 v. So I am hoping to get at least 40 miles from a 21 amp battery. We will see. Once I have broken in the battery [taking it down to at least 40% then recharging for the first few times] and begin riding in warmer weather, we will see how this battery does. In the meantime, I am very happy having a spare. If I'd waited until later in 2020, I definitely would have bought a step-through duo. I want to never have to worry about range ever again. Now that we have our COVID vaccines, my wife and I are ready to go [Yes, she has a backup battery for her Evelo bike]. Yeah 2021!

T
T.M.
I love bitrix!

Best money I’ve ever spent on anything!

M
M.J.
N/A

Still awaiting delivery....

L
L.S.
Beyond my highest expectations!

Biktrix Rox! From soup to nuts, everything about this order has been great. The battery is awesome and really extends my reach. Keep up the great work.

Thanx

Luke

M
M.D.
Great price, reliable delivery

Thanks for the great service in sending me my back up battery!

J
J.S.
standard battery

battery seems of good quality,however i'm not using it yet until original battery dies

S
S.J.
Strong

Great, I can feel the difference,add 3 mpr to the bike. Different charger was the only surprise.

K
K.R.
Great!

Haven't used it yet but am looking forward to it.

K
K.R.
Great!

Haven't used it yet but am looking forward to it.