Polly 52V 20Ah / 25Ah E-Bike Battery Pack with 4A Charger & Lock – Lithium-Ion Battery for 0–1500W Electric Bikes, USB Port, 4-Pin Base Plate

Free Delivery 5 To 7 Business Days

• Choose 20Ah for long rides or 25Ah for maximum distance and endurance. Both versions deliver stable, high-current output for demanding motors and terrains.

• Advanced BMS Protection:
  Built-in 50A Battery Management System (BMS) safeguards against overcharge, overdischarge, overcurrent, overvoltage, short-circuit, and overheating — keeping your battery safe and long-lasting.

• Durable & Weather-Resistant Design:
  The Polly-style curved case protects internal cells from vibration and light rain (avoid prolonged rain exposure). Perfect for mountain, city, folding, and snow e-bikes.

• Smart & Secure Setup:
  Includes 4-pin base plate, lock and keys for anti-theft security, and XT60 discharge connectors for reliable power transfer.

• Fast 4A Charging & USB Port:
  Equipped with a 4A smart charger for faster charging times and a USB port to charge small devices while you ride

• Please check your e-bike’s voltage, connector type, and motor wattage before purchase to ensure the correct fit.
  👉 If you’re not sure about compatibility or voltage, please contact us — we’ll gladly help you confirm before ordering.