48V 20Ah Downtube eBike Lithium Battery for 2000W Motors + Charger

Elemex 48V 20Ah eBike Battery Suitable for 500W to 2000W Motors

Genuine LG Cells

+1 Year Warranty

48V 20Ah eBike Battery

• Brand: Elemex
• Battery Type: 21700 4800mAh Lithium-ion Battery
• Cell Brand: LG (Genuine) – LG M48A Cell
• Array Mode: 13s4p
• Nominal Voltage: 48V
• Rated Capacity: 19.2Ah
• Energy: 923W
• Max Constant Discharge Current: 40A
• Peak Current: 120A (3-5 Seconds)
• Max Constant Charge Current: 4A
• Cut-off Voltage: 39.4V
• Charge Voltage: 54.6V
• Way of Charge: CC/CV
• Charge/Discharge Temperature: -20°C ~ 70°C
• BMS: 40A
• Protections: Overheat, Over Charge, Over Discharge, Over Current, Short Circuit, Balance
• Charging Time: Approx. 4 to 10 hours
• Charging Compatibility: Elemex-approved Chargers
• Output Connector: XT60 Female
• Battery Colour: Black
• Charging Connector: XLR 18mm
• Cycle Life: ≥80% of initial capacity after 1,000 charge cycles (tested up to 1,100 cycles)
• Battery Weight: Approx. 5 kg
• Battery Dimensions: Approx. 360mm x 90mm x 100mm
• Safety Certificates: CE, ROHS, MSDS, UN38.3, IP65
• Warranty: 1 Year

BMS Protection:

This 48V Downtube eBike Battery Pack is equipped with a Battery Management System (BMS) that provides protection against overcharge, over-discharge, over-current, short circuits, and ensures cell balance for optimal performance and safety.

• Brand: Elemex
• Input: AC 100-240V∼ 50/60Hz
• Output: DC 54.6V 2Ah 109.2W
• Compatible Battery: 48V Lithium Li-ion
• Certificates: SAA, GMA, CE, ETV
• Warranty: 1 Year

Downtube eBike Battery

Important Notes:

• Ensure that voltages are paired correctly. For example, a 48V motor must be paired with a 48V battery. Controllers burnt out due to reprogramming or incompatible pairing are not covered by the warranty.
• Often riders may want a high-capacity battery, but their bike frame may not have enough space in the inner diamond to fit one. This is particularly true for dual suspension bikes. If under-mounting or rear mounting the battery is not an option, consider purchasing two smaller capacity batteries and swapping them out during long rides.
• Check the dimensions of this item before placing your order.
• If unsure which battery to pair with your bike, contact us for more information.
• The appearance of the “Battery Level Light” may be slightly different from the photos. The listing photos are for illustration purposes only.

• 1x 48V 20Ah Lithium eBike Battery Pack (Genuine LG Cells)
• 1x Premium 48V Lithium Battery Charger (54.6V 2Ah)
• 1x Frame Mount
• 2x Keys
• 1x Adapter Cable XT60 (Male)
• 1x User Manual
• 1x Warranty Certificate

NSW Safety Information (Required by Law)

This product complies with the NSW Information Standard for e-micromobility vehicles, effective 1 August 2025.

Usage Laws:

Before using this vehicle, check the applicable local laws relating to your intended use of the vehicle on roads, footpaths, shared paths, bicycle lanes, and bicycle paths.

Serial Number:

Each battery includes a unique serial number printed on the product for traceability. Serial numbers are recorded and assigned to each buyer upon shipment.

Electrical and Fire Safety:

• Only use compatible batteries and chargers supplied or certified by Elemex.

• Ensure batteries and chargers used are compatible with this vehicle.

• Charge only in a dry, well-ventilated area, away from flammable materials.

• Do not leave the battery charging unattended or overnight.

• Avoid high-risk charging practices, including charging on flammable surfaces, using uncertified chargers, or charging damaged/swollen batteries.

• Modifying the vehicle or battery may cause fire.

• Warning signs: smoke, sparks, unusual heat, or swelling.

• If battery starts smoking or sparking, call 000 immediately.

User Responsibility & Charger Warning:

• Users must read and understand the Elemex Battery User Manual before use or charging.

• Lithium batteries must only be charged with Elemex-authorised, certified Li-ion chargers.

• Using aftermarket or uncertified chargers may cause performance issues, reduce battery life, or create safety risks.

• Use of uncertified chargers voids the warranty; any resulting damage is the user’s responsibility.

Safe Storage:

• Store in a cool, dry place (15°C – 25°C).

• Do not expose to prolonged heat or water.

• Keep out of reach of children.

Disposal:

• If battery is detachable, separate it safely and dispose of according to local recycling laws.

• If not detachable, follow local laws for vehicle disposal.

• Do not dispose of batteries or vehicles in household bins.

Additional Safety:

• Do not use the vehicle if it contains a damaged battery.

Emergency Instructions:

• If battery emits smoke or fire, move it outdoors if safe.

• Use a Class D fire extinguisher or sand.

• Do not use water on lithium battery fires.