HappyRun Replacement E-Bike Battery – 48V Removable, Tank G50, G60, G60 Pro & G100
HappyRun Replacement E-Bike Battery – 48V Removable, Tank G50, G60, G60 Pro & G100
A Second Battery Is a Second Ride.
Every battery eventually runs out. Some on the ride home.
A spare means you swap and keep going instead of turning back. And if your original pack is getting tired after years of charging, a genuine replacement gets your bike back to day-one range. This is the same removable 48V HappyRun battery your bike was built around.
Which Battery Fits Your Bike
| Tank G50 / G60 | 48V 18Ah |
| Tank G60 Pro | 48V 25Ah |
| Tank G100 | 48V 20Ah |
The G60 and G60 Pro come in UL and non-UL versions. Pick the one that matches your bike.
Why Riders Add One
- Removable. Take it inside to charge, or carry the spare and swap mid-ride.
- Short downtime. The 18Ah pack charges in about 5–6 hours.
- Genuine HappyRun. Built for your bike's controller and mount, not a universal pack you have to adapt.
The Honest Part
- Match your version. UL-certified bikes take the UL battery. Non-UL bikes take the non-UL battery. They are not interchangeable.
- Range varies. Rider weight, terrain, speed and assist level all change how far a charge takes you.
Questions
How do I know which version I have?
Check the label on your current battery or the frame sticker on your bike. Easier still, send us a photo of the battery label and we'll tell you exactly which one to order.
How heavy is it?
The 18Ah pack weighs about 9.9 lb.
Why ride with VortexCycles
Buying an e-bike online takes trust. Here's exactly what you get when you buy from us.
Authorized dealer for Revi Bikes, EUNORAU, Rattan, HappyRun, and Yamee. Every bike is new, factory-sealed, and backed by the full manufacturer warranty.
Coverage, spelled out. Manufacturer warranties run 12 to 24 months depending on the brand, with EUNORAU frames covered for 10 years. They cover manufacturing defects, not wear parts like tires, brake pads, and chains. Each bike's exact coverage is listed on its page, and optional Product Protection adds accidental-damage coverage.
Help from start to finish. Get straight answers on fit, power, and setup before you order, and support with warranty claims after it arrives.
Ships free from a U.S. warehouse. Most bikes arrive in 7–10 business days by FedEx or UPS to the lower 48. Tracking is emailed as soon as your bike ships, and a signature is required on delivery.
The two minutes that protect your purchase. Before you sign, walk around the box. If it's torn, crushed, or punctured, write it on the delivery slip and photograph it before you open it. A clean signature makes a damage claim much harder to win. Some brands require damage reports right away, so open the box the day it arrives. We'll work the claim with you.
14-day returns. Start a return within 14 days of delivery. See full return terms.
Pay over time. Shop Pay Installments shows your options at checkout, and checking won't affect your credit.
Secure checkout. Payments run through Shopify's encrypted checkout, and we never see or store your full card number.
Questions? Chat with us, call (855) 970-3574, or email info@vortexcycles.bike, Monday–Friday, 9am–5pm CT. We reply to every email within one business day.
