Home » 21700 EBike Battery Downtube Polly 72V 60V 52V 48V 24Ah 36V 27Ah 22.5Ah 14.4Ah Baterias for 2000W 1500W 1000W 750W 350W Motor
36V20Ah LG Hialong2
21700 Polly downtube e-bike battery pack showing mounting bracket and key lock
High-capacity 21700 lithium cells inside Polly e-bike battery housing
Compatible 21700 e-bike battery for 1000W to 2000W electric bicycle motors
Downtube lithium battery pack with included charger and mounting hardware
Close-up of e-bike battery discharge port and smart BMS indicator
36V25Ah EVE Polly-8
48V20Ah LG Hialong3
36V25Ah LG Hialong3
52V20Ah LG Polly-8
36V20Ah LG Hialong2
52V24Ah LG 50A
48V24Ah LG 50A
48V18.2Ah Polly-3
52V20Ah LG Polly-8
52V25Ah LG 50A
48V18.2Ah Polly-3
52V20Ah LG Polly-8
60V20Ah LG 50A
36V25Ah LG Hialong3
48V25Ah LG 50A
36V25Ah LG Hialong3
36V20Ah LG Hialong2
21700 Polly downtube e-bike battery pack showing mounting bracket and key lock
High-capacity 21700 lithium cells inside Polly e-bike battery housing
Compatible 21700 e-bike battery for 1000W to 2000W electric bicycle motors
Downtube lithium battery pack with included charger and mounting hardware
Close-up of e-bike battery discharge port and smart BMS indicator
36V25Ah EVE Polly-8
48V20Ah LG Hialong3
36V25Ah LG Hialong3
52V20Ah LG Polly-8
36V20Ah LG Hialong2
52V24Ah LG 50A
48V24Ah LG 50A
48V18.2Ah Polly-3
52V20Ah LG Polly-8
52V25Ah LG 50A
48V18.2Ah Polly-3
52V20Ah LG Polly-8
60V20Ah LG 50A
36V25Ah LG Hialong3
48V25Ah LG 50A
36V25Ah LG Hialong3

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

21700 EBike Battery Downtube Polly 72V 60V 52V 48V 24Ah 36V 27Ah 22.5Ah 14.4Ah Baterias for 2000W 1500W 1000W 750W 350W Motor

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

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Expected Arrival Within 5–8 Days

Upgrade your electric bike with our high-performance 21700 Cell Polly-Series Downtube Battery. Engineered for efficiency, durability, and a sleek frame-mounted fit, this battery is the perfect choice for everything from daily commuting to high-torque off-road adventures. Built with premium-grade 21700 lithium cells, it offers superior energy density and long-cycle life compared to standard 18650 packs.

  • Universal Power Compatibility: Available in multiple voltage configurations (36V, 48V, 52V, 60V, 72V) to perfectly match your specific motor setup.

  • High-Discharge Performance: Optimized for a wide range of motor wattages, supporting systems from 350W up to 2000W.

  • Advanced Smart BMS: Integrated Battery Management System provides essential protection against over-charge, over-discharge, short-circuits, and overheating.

  • Premium 21700 Cells: Equipped with high-capacity 21700 lithium cells for better thermal stability, longer range, and a consistent power curve.

  • Secure Polly Design: The aerodynamic, lockable downtube "Polly" housing keeps your battery protected and balanced on the bike frame.

  • Ready-to-Use Kit: Each battery comes with a matching charger, frame-mounting bracket, and security keys.

Customer Reviews

Based on 10 reviews
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L
Lauri O'Conner

Good quality!! Very satisfied!

D
Dominic Smith

This battery use up to 70 km and still have 10%

C
Columbus Willms

Very good battery, good performance, I recommend it.

W
Winona Reynolds

Great battery rides up to 30 miles in mountains with 1500+ elevation gain on a 1000watt bafang bbshd full throttle only

E
Ettie Zemlak

Amazing is really good battery i try yesterday and is long autonomy i used in a cargo bike and very happy

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