External & Bottle E-Bike Batteries

Yizhan external e-bike battery packs — 36V 9.8Ah EN50604-certified, external box-05 with up to 30 × 21700 cells, and 36V 15Ah 18650 long-range commuter pack.

Brand: Yizhan
Nominal voltage: 24V–48V
Capacity range: 9.8–15Ah
Cell chemistry: Li-ion (18650 / 21700)
Application: Externally mounted packs for retrofits and commuter e-bikes

External mounting — no frame cutouts or special tubing required
EN50604 certified models for the EU market
21700 and 18650 cell options
Customizable voltage, capacity, leads, connectors and branding

Externally mounted packs bolt onto standard frames without integrated tubing — the practical choice for retrofits, budget builds and fleet replacements. Two EN50604-certified models cover the EU market, and the 36V 15Ah 18650 pack gives commuter builds long-range capacity.

These are wholesale, quote-only products. Tell us your voltage, capacity and mounting constraints and we will confirm pricing and lead time.

Models & specifications

Model	Voltage	Capacity	Cells / notes	Certifications
36V 9.8Ah external	36V	9.8Ah	—	EN50604
External box-05	24V / 36V / 48V	by build	205mm case: max 30 × 21700; 280mm case: max 20 × 21700	EN50604
36V 15Ah commuter	36V	15Ah	18650 cells, matched to 350W motors	On request

Why this line

Fits any frame — external mounting needs no integrated downtube or seat-tube case
EN50604 certification available for EU-bound builds
OEM service: voltage, capacity, discharge leads, charge port and logo customizable
Wholesale supply direct from the pack factory