52V 20Ah Hailong Downtube Battery LG 21700 Cells - 45A BMS for 500W-2300W Motor - UK Stock

SKU: 52V-20AH-LG-UK
£230.00£250.00
In Stock
52VVoltage
20AhCapacity
LG M48Cell
45ABMS
  • High Performance: Compatible with 500W - 2300W motors.
  • Premium Cells: Genuine LG 21700-M48 cells for reliability.
  • Smart Protection: 45A Continuous discharge
  • Complete Kit: Includes 58.8V 3A Charger & cables & 5PIN holders.
1-Year WarrantyOfficial Support
Global StockFast Shipping
30 Days ReturnPeace of Mind
CECertified
UN38.3Tested
IEC62133
UKCAMarked

Product Description

Looking for a compact yet powerful upgrade? Our 52V 20Ah Hailong Downtube Battery fits most standard bicycle frames while delivering 20% more range than typical 48V packs. It's the perfect match for Bafang BBSHD 500W - 2300W rear hub conversions.


🔋 High Density LG 21700 Tech

By using modern LG INR21700-M48 cells, we pack 1040Wh of energy into a sleek case. The 21700 format offers better heat dissipation and longevity compared to older 18650 cells, ensuring your battery lasts for years.


🇬🇧 UK Local Stock & Easy Install

  • Downtube Mount: Replaces your water bottle holder for a secure, low-profile fit.
  • UK Warehouse: Shipped via FeDex/DPD/DHL. No customs fees or long waits.
  • High Power BMS: The 45A Continuous BMS allows you to unlock the full potential of high-speed controllers (up to 2300W peak).

⚠️ Fitment Check: Before purchasing, please verify your frame dimensions. Use the size chart in the image gallery or contact us if you are unsure.

Technical Specifications

cell TypeLG INR21700-M48 (4800mAh)
configuration14S 4P (14 Series, 4 Parallel)
nominal Voltage52V
nominal Capacity20Ah (1040Wh)
bms Rating45A Continuous
output PowerSupports 500 to 2300W Motors
charging Voltage58.8V
discharge Cutoff42V
connectorXT60
battery Pack Size365*90*127mm
weightApprox. 6kg