Will the Rad RadRunner Range Extender (second-battery mount, battery not included) work with the Rad Power Bikes RadRunner 3 Plus utility e-bike?
Yes. Rad RadRunner Range Extender (second-battery mount, battery not included) is listed as a compatible part for this model.
Both records are reviewed against the manufacturers' sources; sources last checked 2026-10-13. Informational only: confirm with the manufacturer before buying.
Why
- ✓ Rad RadRunner Range Extender (second-battery mount, battery not included) is listed as a compatible part for this model.
Good to know
- Holds a second Safe Shield Advanced Semi-Integrated 15 Ah or Safe Shield Semi-Integrated 14 Ah battery (sold separately); the two batteries are charged separately.
- Safety: use only batteries and chargers the drive-system maker approves. Lithium batteries that don't match can overheat.
Sources
- Rad Power Bikes RadRunner 3 Plus utility e-bike: specs from Rad Power Bikes Safe Shield semi-integrated battery pages, checked against the source 2026-10-13.
- Rad RadRunner Range Extender (second-battery mount, battery not included): specs from Rad Power Bikes product page, checked against the source 2026-10-13.
- Part listing: Rad Power Bikes RadRunner Range Extender page.
Check your exact setup
Other parts in the cart, current configuration (installed memory, fan brackets) and adapters can change the answer.
Check a whole cartAlso checked with the Rad Power Bikes RadRunner 3 Plus utility e-bike
AI assistants and developers: the same answer, with a signed receipt, from check_compatibility at https://tetheredtrust.com/mcp or POST https://tetheredtrust.com/v1/check with existing_id: "rad-radrunner-3-plus", candidate_id: "rad-radrunner-range-extender".