Home » Polly 548V 17.5Ah 52V 20Ah 25Ah 30Ah 72V 20Ah E-Bike Battery Pack with 4A Charger & Lock – Lithium-Ion Battery for 0–1500W Electric Bikes, USB Port, 4-Pin Base Plate
Durable ebike battery for rough terrain
Ebike battery 25Ah maximum distance endurance
High current ebike battery for powerful motors
Ebike battery with 50A smart BMS protection
Safe lithium ebike battery overcharge protection
Polly style curved case ebike battery
Ebike battery for mountain city folding bikes
Ebike battery with 4 pin base plate
Ebike battery with USB charging port
Fast charging ebike battery with 4A charger
Durable ebike battery for rough terrain
Ebike battery 25Ah maximum distance endurance
High current ebike battery for powerful motors
Ebike battery with 50A smart BMS protection
Safe lithium ebike battery overcharge protection
Polly style curved case ebike battery
Ebike battery for mountain city folding bikes
Ebike battery with 4 pin base plate
Ebike battery with USB charging port
Fast charging ebike battery with 4A charger

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

Polly 548V 17.5Ah 52V 20Ah 25Ah 30Ah 72V 20Ah E-Bike Battery Pack with 4A Charger & Lock – Lithium-Ion Battery for 0–1500W Electric Bikes, USB Port, 4-Pin Base Plate

(5)
$390.00
In stock
Usually ships within 24 hours
EV battery features

Ready to work out of the box!

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

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Delivery 5 To 8 Days

  • Choose 48V 17.5Ah 52V 20Ah 25Ah 30Ah 72V 20Ah for long rides 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.

Customer Reviews

Based on 5 reviews
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J
Joleen Johnston

Battery was not as described seller quickly resolved issue and decided to keep battery do your research make sure ah of battery is correct battery is good and seller is fair i will purchase from this seller in future

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Desiree Kassulke

Got them after 15 days, will try them soon and leave review post again.

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Andres Deckow

It uses samsung battery cells, and the seller is very honest about this.

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Johnny Harber

I ordered 48v25ah, i received the battery quickly, the packaging is good, the battery is very large, the battery capacity is 90%, a charger is given away, i charged it, it was full quickly, the capacity is sufficient, the use is long enough, it is a good choice for outdoor riding and delivery. Recommend this seller

R
Reynaldo Wiegand

Here comes the battery. No customs duties, very good. Inside is the original samsung cell. The capacity corresponds to the declared capacity. The bms is balanced. Over time, it was a 5a charger that was given away. It's worth buying.