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Estimated Delivery
Free shipping on every U.S. order

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Estimated Shipping Time

We offer free shipping on all orders across the contiguous United States. Orders are typically processed within 1–3 business days, and standard delivery takes 5–10 business days. Freight and oversized items take 10–21 business days and may require a scheduled delivery.

What Is Your Return Policy?

We offer a 30-day return window on eligible items from the date of delivery. Products must be unused, in original condition, and returned in their original packaging. To start a return, contact us at support@adventuremotion.com or call (877) 834-4299. Return shipping costs may apply for non-defective items. Damaged or defective items are replaced at no cost to you.

Frequently Asked Questions

Do you offer financing?

Yes — we partner with Affirm so you can split your purchase into easy monthly payments with 0% APR options. Just select Affirm at checkout.

Are you an authorized dealer?

Yes. Adventure Motion is an authorized online dealer for all brands we carry. That means your manufacturer warranty is fully valid and protected.

Can you help me choose the right product?

Absolutely. Call us at (877) 834-4299 or email support@adventuremotion.com — our team specializes in outdoor gear and can match you to the right product.

What if my item arrives damaged?

Contact us within 48 hours of delivery at support@adventuremotion.com. We'll arrange a replacement at zero cost to you — no questions asked.

Need items in bulk? Contact us for a custom quote or invoice.
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AM120

A genuine replacement battery pack for the HappyRun G100 Pro electric bike. Capacity drops as a pack ages, so a replacement restores the range the bike had when it was new rather than simply getting it running again.

The G100 Pro runs a 72V dual battery setup: an 18Ah pack on top and a 15Ah pack below. They are not interchangeable, and the top pack also comes in yellow or black to match the bike.

Packs are not interchangeable between models, and several bikes use different top and bottom packs. Pick the option that matches your exact model before ordering, since parts are not shared across the whole HappyRun range. If you are not sure which version you have, send Adventure Motion support a photo of the original part and we will confirm it.

Battery

  • Top Pack: 72V 18Ah, available in yellow or black
  • Bottom Pack: 72V 15Ah
  • System Voltage: 72V

Compatibility

  • Models: G100 Pro electric bike

Care

  • Cycle Life: Engineered to hold up to 75% of original capacity for up to 300 charge cycles
  • Storage: Recharge periodically rather than leaving the pack flat

  • Genuine replacement pack for the G100 Pro electric bike
  • Restores original range and power delivery
  • Removable design, charges on or off the bike
  • Model-specific: choose the matching option

This part carries a 12-month warranty from the date of delivery against defects in materials and workmanship, in line with HappyRun's published coverage for batteries.

The warranty does not cover normal wear and tear, damage from abuse, neglect, misuse or accidents, damage caused by stunt riding or jumping, water ingress, or any self-modification. To start a claim, contact Adventure Motion support with your order number and photos of the issue.

Which models does it fit?
Choose the matching option at checkout. this listing covers g100 pro electric bike.
How do i know which version i have?
Send adventure motion support a photo of your existing part along with your bike model and we will confirm the right one before you order.
Does it come with installation instructions?
Fitting is covered in the bike's owner's manual. contact support if you would like the relevant pages sent over.
Are the top and bottom packs the same?
No. the top pack is 72v 18ah and the bottom is 72v 15ah. order the one you need.
Does the color matter?
Only cosmetically. the top pack is offered in yellow or black to match the bike's paint.

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