100% Lowest Price Guarantee

Electric Bikes On Sale Now

Have a Question?
1-877-669-9909

9am - 11pm EST

FREE SHIPPING

  • Model: 52V21Ah HYFX-D LG3500 lithium ion battery
  • Nominal Voltage: 52V
  • Rated Capacity: 21Ah
  • Cycle Life: 500-800 cycles

SKU: 52V-21AH-HYFX-D-RA41

EUNORAU

52V21Ah eBike Battery - Flash Moped Model

52V21Ah eBike Battery - Flash Moped Model

100% PRICE GUARANTEE

100% LOWEST PRICE GUARANTEE

🏷 100% Price Match Guarantee

  • We work very hard to ensure that we offer the absolute best prices online. If you find another online store that offers a lower price than us within six months of your purchase date, please let us know and we will refund your original payment for the difference.
  • We want you to feel confident that you're getting the absolute best price. If our own website has a lower price for the same item you’ve already purchased within six months, we'll refund the difference as well.

⚠️ Limitations of the Price Guarantee

  • ✅ You must purchase the item from our website before requesting a Price Match
  • 🚫 Promotions like rebates or BOGO offers are not eligible
  • 📦 The item must be in stock on the competitor’s website
  • 🌐 The competitor must be an online store only (no retail locations)
  • 🛑 No discount or auction sites (e.g. eBay, Overstock, etc.)
  • 🧩 The competitor must be an Authorized Retailer of the product
  • 🚚 Price Match covers item price + shipping (excludes sales tax)
  • 🧾 To request your partial refund, simply email us a link to the same product either on our website or on a competitor’s website within six months from the date of your order. We’ll process the credit accordingly.

Price: $944.00
List Price: $944.00
Price: $944.00

SPECIFICATIONS

  • Model: 52V21Ah HYFX-D LG3500 lithium ion battery
  • Nominal Voltage: 52V
  • Rated Capacity: 21Ah
  • Weight: 13.9 lbs
  • Standard Charge: 4A
  • Type: Down tube battery
  • Color: Black
  • Cycle Life: 500-800 cycles
  • Charger: 4A charger
  • Application: EUNORAU Flash
  • BMS and Balance: Short-circuit, over-charge, over-discharge, over-current protection, and balance.

Upgrade your EUNORAU Flash today with the FLASH SECOND 52V21AH BATTERY and enjoy a longer, safer, and more enjoyable ride.

FEATURES & BENEFITS

  • Extends your riding range significantly.
  • Durable and reliable for long-term use.
  • Enhances the safety and stability of your ride.

SHIPPING POLICY

Shipping & Returns Policy

✅ Order Confirmation

  • As soon as you place your order, you’ll receive an order confirmation email. This means we’ve received your order and pre-authorized your credit card. We contact our suppliers to confirm stock availability. If the item is on backorder or unavailable, we void the pre-authorization and contact you. If the item is available to ship within 5 business days, we charge your card and begin processing.

📦 Order Shipment

  • If your item is in stock and charges have been processed, your order ships in 1–3 business days. We’ll email you tracking info within 24 hours of shipment. If no tracking is received after 6 business days, contact us at info@wattwheelsebike.com.

🌎 Shipping Regions & Carriers

  • E-Bikes ship to USA and Canada via UPS from Las Vegas or Lachine warehouses. Estimated delivery: 1–10 days. Accessories & batteries ship via FedEx or UPS. Estimated delivery: 9–15 days.

📍 Remote Area Shipping Note

  • If your location is classified as remote by the carrier, additional fees may apply. If the item is out of stock locally, it may ship from overseas. In such cases, tracking info may be delayed until customs clearance. Estimated delivery: 10–15 business days.

🔐 Final Sales Policy

  • All sales are final, unless there is a verifiable defect upon delivery. If so, Watt Wheels will provide specific return procedures. Returns allowed within 14 days only for serious quality issues.

🛡 Warranty

  • 24-month warranty on all E-Bikes. Warranty is handled directly by Eunorau with the customer.

🏢 Delivery & Shipping Requirements

  • Customer must ensure accurate shipping information, availability during delivery, clear access to delivery point, and staff/equipment for unloading if needed. If a residential address is used and requires extra services (e.g. lift-gate), customer must notify Watt Wheels in advance. Failure to do so may result in delays or extra fees. Missed deliveries due to customer negligence will result in return shipping charges and possible re-delivery fees.

📦 Damages

  • Please inspect your package on arrival. If damaged, note it when signing, take photos, and email info@wattwheelsebike.com. We will file an insurance claim on your behalf.

💳 Cancellations & Refunds

  • Orders canceled after 48 hours incur a $20 admin fee. If already shipped, customer is responsible for return shipping. Refunds issued only to the original credit card used at purchase.
View Cart

Out of stock

52V 21Ah Electric Bike Battery for Flash Moped Series

 

Superior Power and Range

The 52V 21Ah HYFX-D LG3500 lithium-ion battery is specifically designed for the EUNORAU Flash moped model. With a nominal voltage of 52V and a rated capacity of 21Ah, this battery significantly extends your riding range, allowing for longer journeys without the need for frequent recharging.

 

Robust and Reliable Performance

Weighing 13.9 lbs, this down tube battery is lightweight yet durable, ensuring reliable performance for your eBike. It is engineered for longevity, with a cycle life of 500-800 charges, making it a dependable choice for long-term use. The standard 4A charger allows for efficient recharging, minimizing downtime between rides.

 

Smart Safety Features

Built with a Battery Management System (BMS), this battery provides comprehensive protection against short-circuits, over-charging, over-discharging, and over-current situations. This ensures a safe and stable ride, enhancing both your confidence and the overall enjoyment of your cycling experience. Upgrade your EUNORAU Flash today with the FLASH SECOND 52V 21Ah battery for a more powerful and safer ride.