Skip to the beginning of the images gallery

48V 21Ah Downtube Battery UL 2271 Certified

48V (13s) 21Ah UL Listed Downtube Battery - Samsung 53G cells. 50A Continuous BMS Circuit

Individually Discharge Tested at Grin to Ensure Capacity.
(ETA July 29 2026)

From USD$600.00

Out of stock

SKU

BUNDLE-B4821LiM-DT

Notify me when this product is in stock

Customize 48V 21Ah Downtube Battery UL 2271 Certified

Battery Pack

48V 21Ah Downtube Battery UL 2271 Certified - Out of Stock -

Quantity

Charger Option (48V ST3)

Quantity

Include Triple Bob Bracket?

Quantity

Include Clamp for Rear Rack Installation?

1 x Rail Anchor kit + USD$15.75

* Required Fields

Your Customization

48V 21Ah Downtube Battery UL 2271 Certified

Out of stock

USD$600.00

Summary

Additional Information

48V (13s) 21 Ah downtube battery in Reention casing with Samsung 53G cells. No charger included. This battery can be charged up to 8A.

Features include:

Anderson Powerpole Connectors for Power
Push Button for 4 LED Charge Indicator
Installs to Waterbottle Eyelets on Downtube
Mechanically Locking Key Switch
ON/OFF Rocker Switch
ST3 Charger Port

Specifications

48V 21Ah Downtube Battery UL 2271 Certified

Country of Manufacture

China

Full Charge Voltage

54.4V

Capacity (Amp-Hours)

21.2

Cell Type

Samsung 53G 13S x 4P

Dimensions (L x W x H, mm)

365x100x124

Actual Weight (kg)

5.0

Nominal Voltage

48 Volt (13s)

Battery Mount Location

Frame Mount

Connector(s)

Anderson, ST3, XT-90S

Battery Cable Length (cm)

48V 2A ST3 Charger

Country of Manufacture

China

Dimensions (L x W x H, mm)

169x71x40

Actual Weight (kg)

0.56

Connector(s)

ST3

Charger Voltage

48V (54.6V max)

Charge Port Connector

ST3

48V 4A ST3 Charger

Country of Manufacture

China

Dimensions (L x W x H, mm)

197x82x46

Actual Weight (kg)

0.98

Connector(s)

ST3

Charger Voltage

48V (54.6V max)

Charge Port Connector

ST3

Satiator 12-63V, 0-8A with ST3 Adapter

Actual Weight (kg)

1.06

Product Attachments