Home » Varstrom E-Bike Battery 48V 25Ah 52V 20Ah 40A BMS Downtube Lithium Pack for 500W to 2000W Motors with 21700 Cells (2026 New)
48V 25Ah Yingwu EVE
Varstrom ebike battery 48V 52V downtube main studio view
Side profile of Varstrom lithium battery showing secure key lock
Close-up of 40A BMS discharge port and power switch on Varstrom battery
Bottom mounting plate and connection pins of Varstrom ebike pack
Varstrom 21700 cell lithium battery installed on electric bike frame
LED battery capacity power indicator lights lit up on Varstrom pack
52V 25Ah Yingwu L-G
52V 20Ah Yingwu Sa-m
48V 25Ah Yingwu EVE
Varstrom ebike battery 48V 52V downtube main studio view
Side profile of Varstrom lithium battery showing secure key lock
Close-up of 40A BMS discharge port and power switch on Varstrom battery
Bottom mounting plate and connection pins of Varstrom ebike pack
Varstrom 21700 cell lithium battery installed on electric bike frame
LED battery capacity power indicator lights lit up on Varstrom pack
52V 25Ah Yingwu L-G
52V 20Ah Yingwu Sa-m

Actual colors may differ slightly from photos due to lighting and screen settings.

Varstrom E-Bike Battery 48V 25Ah 52V 20Ah 40A BMS Downtube Lithium Pack for 500W to 2000W Motors with 21700 Cells (2026 New)

(5)
$421.30
In stock
Usually ships within 24 hours
Option

Ready to work out of the box!

Includes all key accessories and simple setup instructions for quick start!

Share

Expected arrival within 5–8 days

Unleash the full potential of your electric ride with the Varstrom E-Bike Downtube Lithium Battery. Built using advanced, high-density 21700 lithium cells, this 2026 new release is engineered specifically for high-power e-bike conversions ranging from 500W, 1000W, up to heavy-duty 2000W motors.Equipped with an intelligent 40A Battery Management System (BMS), this pack safely handles high discharge currents while protecting against over-charge, over-discharge, overload, and short-circuits. 

  • Battery Chemistry: Lithium-Ion (using high-drain 21700 cells)

  • Available Voltages: 48V / 52V

  • Available Capacities: 25Ah (for 48V) / 20Ah (for 52V)

  • BMS Protection: 40A Intelligent Battery Management System

  • Compatible Motor Power: 500W, 1000W, up to 2000W conversion kits

  • Casing Type: Downtube mount with integrated safety lock and power switch

  • Application: Electric bicycles, e-MTBs, high-speed commuting e-bikes

Customer Reviews

Based on 5 reviews
80%
(4)
0%
(0)
0%
(0)
0%
(0)
20%
(1)
C
Christal Haag

Great battery, and fast delivery to california. bought this to replace my 15ah in my revv1 and this battery is great. i am getting 60% more runtime and power holds up well until drained. 8hrs to fully charge with the supplied 3ah charger but i can ride 35+ miles on throttle alone, no pedal assist. highly recommended upgrade for your ebike.

D
Danuta Bauch

This item is only compatible with mtb or bmx style e-bikes due to its configuration.

M
Milly Prohaska

As advertised! would buy again! good quality battery. works great with my bafang bbshd motor. give me more speed and torque and longer range. highly recommend this seller and battery.

Milly Prohaska review photo Milly Prohaska review photo
C
Carleen Stokes

Wow, what an upgrade! from a 48v/13mah to a varstrom 52v/20mah was a big improvement. this gets heavy throttle use with a 750w ebike motor, and it goes all day! noticeable responsiveness improvement and discharge life is much longer. solid build, quality components. very happy!

S
Simon Stanton

Amazing seller and product! communication was on point.. items arrive fast and are working great! i rode was pedal assist on for about 16 mi today, and barely put a dent in the 20ah battery!

Simon Stanton review photo