(UK STOCK) 72V31.2Ah 72V20Ah 52V28.8Ah 48V28.8Ah Triangle ebike battery LG21700 A grade cell charger 4A (52V31.2Ah)

Price: £411.00
(as of Jun 27, 2026 21:11:50 UTC – Details)

Product Description

Powered by Genuine LG 21700 A grade Cells and Reliable Smart BMS

Technical Specifications Safety & Engineering Genuine LG 21700 (M50 Model) Integrated Smart Protection BMS 1000 – 1500+ Lifecycles CE, UN38.3, MSDS Certified Smart Protection Features

Our advanced BMS system monitors each cell in real-time, providing comprehensive protection against:

Over-charge & Over-dischargeOver-current & Short-circuitTemperature anomalies

The Heart of Your Electric Bike Experience Unmatched Power and Reliability

We use only Grade-A LG M50 cells to ensure maximum energy density and consistent power delivery. Unlike generic alternatives, these high-quality cells offer a longer life cycle and maintain high performance even under heavy loads or extreme weather conditions.

Built for Long-Term Durability

Designed for professional e-bike conversions and upgrades, our battery packs are built to last, providing you with the peace of mind needed for long-distance touring and rugged off-road trails.

Choose the Perfect Power for Your Ride

48V 28.8Ah: Versatile Reliability

Universal Compatibility.

The gold standard for 1000W – 2400W kits like Bafang and Voilamart. It combines a huge energy reserve with reliable 48V output, ensuring a smooth and extended ride for daily commuting and heavy-duty use.

52V 28.8Ah: The Ultimate Range

Go Further with Ultra-High Capacity. Support 1000W – 2600W motor kits. Provides a significant power boost over standard 48V systems. With a massive 28.8Ah capacity, it offers an impressive range of miles, making it the top choice for long-distance touring and weekend adventures.

72V 20Ah: Extreme Performance

High Voltage for Serious Speed. Specifically engineered for high-power motors (up to 4000W), this battery delivers the peak torque needed for steep climbs and high-speed off-roading. Perfect for adrenaline seekers using specialized conversion kits.

Triangle ebike battery mounted on mountain bike frame

Heavy-Duty Protection Bag

Our premium battery bag is designed to withstand the toughest environments, ensuring your power source remains protected and secure.

Oxford Fabric: Durable and water-resistant to withstand UK rain. Multi-Point Fixation: Strong Velcro straps ensure the battery stays locked in place. Double Zippers: Easy access and convenient cable management.

Rugged Triangle Design for Perfect Fit

Optimized Geometry & Stability

The triangle geometry is specifically engineered to fit within the down-tube frame of most mountain bikes. By placing the battery’s weight in the center of the bike, it keeps the center of gravity low, providing superior balance and handling during high-speed off-road rides.

Custom-fit for mountain bike frames Low center of gravity for better handling Professional aesthetic and seamless integration

Fast UK Delivery & Reliable Local Support

Your Trusted Partner in the UK, Oulaisen ebike battery UK local warehouse and shipping service

No More Long Waits.

All our battery packs are stocked in our dedicated UK warehouse. We provide rapid dispatch and fast local delivery across the country, ensuring your e-bike upgrade arrives safely and on time. Skip the international shipping hassles and get riding sooner.

1-Year Professional Support.

At Oulaisen, we stand behind our quality. Each battery comes with a comprehensive 1-year and lifetime technical assistance. Our professional team is based in the heart of the supply chain with 15+ years of expertise, ready to provide the guidance and peace of mind you deserve.

UK STOCK 72V31.2Ah triangle ebike battery, special designed for e-bikes, e-scooters, and e-motorcycles
LG21700 A grade cell M52VT, top quality, keeping more safer and longer lifecycles
60A BMS
1year warranty, Free repair in UK shop.