HITWAY BK19 E-Bike Battery 36V 12Ah (Black)

BK19 Battery(Black Colour) 36V 12Ah Hitway BK19 Ebike battery is a genuine lithium-ion replacement battery for your HITWAY or KOOLUX electric bike, supplied from our UK warehouse.

Each pack uses high-grade 18650 cells with an integrated BMS that protects against over-charge, over-discharge, over-current and short circuit. It locks securely into the original battery base and can be charged on or off the bike.

Before ordering, please match three things on your existing battery: the voltage (36 V or 48 V), the capacity in Ah, and the connector / mounting plate. If you are not sure, send our UK team a photo of the label on your battery and we will confirm the correct pack for your model.

Why buy from HITWAY UK

• Genuine part — OEM quality, engineered for a precise fit
• UK stock — held in our own UK warehouse, dispatched within one working day
• 1-year warranty with UK-based technical support
• Fitting help — step-by-step guidance from our UK team if you need it

Not sure this is the right part for your model? Send our UK support team your model name and a photo of the old component, and we will confirm before you order.

HITWAY UK spare parts & batteries

We stock batteries, chargers, controllers, displays, brake parts, tyres, cables and bodywork for HITWAY e-bikes and e-scooters — all shipped from our UK warehouse. Browse the full range in our E-Bike Parts and E-Scooter Parts collections.