🔋 52V 25Ah Compact Wedge E-Bike Battery – LG 50MLT Cells • 60A Smart BMS

1300Wh Capacity • Grade A LG Cells • Compact Hard Case • 5A Fast Charger Included

Power your e-bike with the MCR Electric 52V 25Ah Compact Wedge Battery, engineered for riders who need high capacity in a compact design. Built using Grade A LG INR21700-50MLT cells and a 60A Smart BMS, this battery delivers exceptional performance, reliability and long service life.

Its compact wedge-shaped hard case is designed primarily for small and medium-sized bicycle frames, while remaining suitable for larger bikes where space allows. Complete with an LED voltage and battery percentage display, USB-C charging port, on/off power switch, and 5A fast charger, this battery is ideal for high-performance e-bike conversions.

⚡ Features

• ✔️ 52V 25Ah Compact Wedge Battery
• ✔️ Approx. 1300Wh capacity
• ✔️ Grade A LG INR21700-50MLT cells
• ✔️ High-performance 21700 cell technology
• ✔️ 60A Smart BMS (Non-Bluetooth)
• ✔️ Durable hard plastic wedge case
• ✔️ LED voltage display
• ✔️ Battery percentage indicator
• ✔️ USB-C output port
• ✔️ Integrated on/off power switch
• ✔️ Removable battery design
• ✔️ Compact size for easier installation
• ✔️ Suitable for frame mounting or triangle battery bag installation
• ✔️ Includes 5A UK fast charger

📏 Specifications

• Battery Voltage: 52V
• Battery Capacity: 25Ah
• Energy: Approx. 1300Wh
• Cell Type: Grade A LG INR21700-50MLT
• Cell Format: 21700
• Battery Management System: 60A Smart BMS (Non-Bluetooth)
• Battery Case: Hard Plastic Wedge Case
• Length: 387mm
• Height: 158mm
• Width: 110mm
• Approximate Weight: 7kg

🚲 Fitment

Designed primarily for:

• ✔️ Small bicycle frames
• ✔️ Medium bicycle frames

Also suitable for:

• ✔️ Larger bicycle frames (subject to available space)

Ideal for:

• Mountain Bikes (MTB)
• Hybrid Bikes
• Traditional Pedal Bike Conversions
• High-performance E-Bike Builds

🔋 LG INR21700-50MLT Cell Information

• 🇰🇷 Manufactured in South Korea
• ✔️ Grade A LG Cells
• Nominal Capacity: 5000mAh
• Nominal Voltage: 3.69V
• Energy Per Cell: 18.2Wh
• Maximum Continuous Discharge: 14.4A
• Energy Density: 270Wh/kg
• Power Density: 787W/kg
• ✔️ Designed for high-capacity applications
• ✔️ Long service life and excellent reliability

📦 Package Includes

• ✔️ 1 × 52V 25Ah Compact Wedge Battery
• ✔️ 1 × 5A Fast Charger (UK Plug)
• ✔️ 1 × Battery Base Mount
• ✔️ Mounting Hardware
• ✔️ Heavy-Duty Cable Ties

🛠️ Installation Notes

This battery is designed primarily for small and medium-sized bicycle frames, although it can also be fitted to larger frames where suitable.

The battery is removable, but removal requires the six mounting bolts securing it to the base to be undone.

For the most secure installation:

• ✔️ Mount the battery base using at least four fixing points wherever possible.
• ✔️ If your frame only has standard bottle cage mounts, additional heavy-duty mounting hardware or jubilee-style clamps should be used.
• ✔️ The battery base must be securely fixed before riding.

The battery can also be installed inside a compatible triangle battery bag if preferred.

📸 Product Information

Please note that the branding, stickers, labels and cosmetic appearance of the battery may vary slightly between production batches.

Battery specifications, capacity, cell type and performance remain exactly the same.

✅ Certification & Compliance

• ✔️ UKCA Certified
• ✔️ CE Certified
• ✔️ UN38.3 Tested
• ✔️ IEC 62133 Compliant
• ✔️ MSDS Documentation Available
• ✔️ Manufactured using Grade A LG Cells

⚠️ Lithium Battery Safety

• ⚠️ Never leave the battery charging unattended.
• ⚠️ Only use the supplied or approved charger.
• ⚠️ Do not puncture, crush or expose the battery to fire.
• ⚠️ Do not use a battery that is damaged, swollen or water affected.
• ⚠️ Store in a cool, dry location away from heat sources.
• ⚠️ Keep out of reach of children.
• ⚠️ Installation should be carried out by a competent person.
• ⚠️ Always follow the supplied instructions before use.

🛡️ Warranty

✔️ 12-Month Warranty

Warranty does not cover:

• ❌ Water damage
• ❌ Physical or impact damage
• ❌ Modified wiring or connectors
• ❌ Removal or tampering with serial numbers, labels or identification marks

All warranty inspections and repairs are carried out by MCR Electric.

🚚 Shipping & Returns

• 📦 Orders dispatched within 24 hours (Monday–Friday) when ordered before 1:00 PM
• 🚛 Fully tracked UK delivery
• ⏱️ Estimated delivery: 1–2 working days
• ↩️ 30-day returns policy

🤝 Why Choose MCR Electric?

• 🇬🇧 UK-based expert support
• 🚚 Fast UK dispatch
• 🔧 Batteries tested before dispatch
• ⚡ Premium Grade A LG cells
• 🛠️ Trusted by custom e-bike builders across the UK
• 🛒 Wide range of batteries, motors, controllers and accessories available