What are the specs of the SaiKeung 52V 25Ah Hailong/Polly 21700 Battery?

The SaiKeung 52V 25Ah Hailong/Polly 21700 Battery is a 52V 25.00Ah battery with 1300.00Wh of energy using Li-ion chemistry.

What is the continuous discharge rate of the SaiKeung 52V 25Ah Hailong/Polly 21700 Battery?

It supports 80A continuous discharge.

What comes included with the SaiKeung 52V 25Ah Hailong/Polly 21700 Battery?

The SaiKeung 52V 25Ah Hailong/Polly 21700 Battery comes with: Amass XT60 (included). These components are automatically added to your build when you select this product.

SaiKeung 52V 25Ah Hailong/Polly 21700 Battery

SaiKeung Battery

Find Compatible Components

Options

Voltage

36V$381.79 48V$417.9852V60V$432.41 72V$396.39

Capacity

25Ah30Ah$458.17 35Ah$473.41 40Ah$496.31 50Ah$542.21 60Ah$580.35

A 52V 25Ah lithium-ion e-bike battery built with 21700 Samsung cells in a Hailong/Polly DP-style downtube case. Includes an integrated BMS, a 30cm XT60 discharge cable, and a matching 5A charger. Suitable for 250W-3000W e-bike and e-scooter motors at the matching voltage.

In brief: 52V 25Ah (1300Wh) Li-ion battery. Hailong form factor. 80A continuous discharge. From $443.

Specs verified Jun 26, 2026

Where to Find

Prices tracked across 1 seller

AliExpress - SaiKeung Electric Bike Scooter Battery Factory Store

$442.93 + free shipping

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Price History

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Current best price $442.93. Over the past 90 days: low $442.93, high $442.93, average $442.93 — about average.

AliExpress - SaiKeung Electric Bike Scooter Battery Factory Store

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1 price record in this period

Date	Price	Shipping	Total	Change	Coupon	Rating	Sales	In Stock	Status
AliExpress - SaiKeung Electric Bike Scooter Battery Factory Store(1 record)
Jun 21, 202607:56 AM	$442.93	$0.00	$442.93	Initial	—	—	—	Yes	active

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Specifications

Electrical

Voltage: 52V
Capacity: 25Ah
Energy: 1300Wh
Chemistry: Li-ion
Continuous Discharge: 80A
Peak Discharge: 100A
Max Charge Current: 10A

Side Profile

Shape: Hailong

Mounting

Removable: Yes
Mounting Type: Downtube

Features

Phone Charger: No

Physical

Weight: 7 kg
Dimensions (L×W×H): 368mm × 150mm × 95mm

Included Components

SaiKeung Voltage-Matched 5A Charger

ChargerIncluded