FREESKY FP4818R0
SKU FP4818R0
FREESKYThe FREESKY FP4818R0 is a battery pack with a certified nominal voltage of 48.1Vd.c., a certified capacity of 18Ah and an ingress rating of IP33.
Last updated: 7 September 2026
What we found
- Documented to fit 1 model: FREESKY Alaska Pro M-520, from the manufacturer's own documentation.
- 11 specifications are published for it, each with the source it was read from.
- 1 certification standard is cited for it: UL 2271.
- No matching recall was found in the records this catalogue holds from 8 regulators.
Assembled from the evidence on this page. Every figure and count below is shown with the source it was read from.
Battery care and safety
- Ingress protection
- IP33
“Remarks: - The battery is used for off-road LEVs. - IP Code Rating: IP33”
Source: freeskycycle.com/cdn/shop/files/UL2271-Alaska-Pro-M520-18Ah.pdf
Certification claims
- Who holds the certificate
- GuangZhou Yansan Science & Technology Co.,LTD
- Certificate number
- U10 128702 0009 Rev. 00
- Test report behind it
- 6828225088601
- Who issued it
- TÜV SÜD America, Inc.
- Standards tested against
- UL 2271:2018 CAN/UL 2271:2018
- Date on the certificate
- 2025-09-19
- What the certificate itself covers
- Model(s): FP4818R0
- What the certifier says it is for
- The battery is used for off-road LEVs.
- Nominal voltage as certified
- 48.1Vd.c.
- Rated capacity as certified
- 18Ah
“Holder of Certificate: GuangZhou Yansan Science & Technology Co.,LTD 202, Building 6, No.25-Min'an North Road Tanbu Town, Huadu District 510800 Guangzhou City PEOPLE'S REPUBLIC OF CHINA”
Source: freeskycycle.com/cdn/shop/files/UL2271-Alaska-Pro-M520-18Ah.pdf
“CERTIFICATE No. U10 128702 0009 Rev. 00”
Source: freeskycycle.com/cdn/shop/files/UL2271-Alaska-Pro-M520-18Ah.pdf
“Test report no.: 6828225088601”
Source: freeskycycle.com/cdn/shop/files/UL2271-Alaska-Pro-M520-18Ah.pdf
“TÜV SÜD America, Inc. • 401 Edgewater Place Suite #500 • Wakefield • MA 01880 • USA”
Source: freeskycycle.com/cdn/shop/files/UL2271-Alaska-Pro-M520-18Ah.pdf
“Tested according to: UL 2271:2018 CAN/UL 2271:2018”
Source: freeskycycle.com/cdn/shop/files/UL2271-Alaska-Pro-M520-18Ah.pdf
“Date, 2025-09-19”
Source: freeskycycle.com/cdn/shop/files/UL2271-Alaska-Pro-M520-18Ah.pdf
“Model(s): FP4818R0 Brand Name(s): FREESKY”
Source: freeskycycle.com/cdn/shop/files/UL2271-Alaska-Pro-M520-18Ah.pdf
“Remarks: - The battery is used for off-road LEVs. - IP Code Rating: IP33”
Source: freeskycycle.com/cdn/shop/files/UL2271-Alaska-Pro-M520-18Ah.pdf
“Nominal voltage 48.1Vd.c.”
Source: freeskycycle.com/cdn/shop/files/UL2271-Alaska-Pro-M520-18Ah.pdf
“Rated capacity 18Ah”
Source: freeskycycle.com/cdn/shop/files/UL2271-Alaska-Pro-M520-18Ah.pdf
Battery certifications
- UL 2271Standard for Batteries for Use in Light Electric Vehicle (LEV) ApplicationsVerified certification recordIssuer: TÜV SÜD America, Inc.Cert #U10 128702 0009 Rev. 00TÜV SÜD Certificate Explorer — U10 128702 0009 Rev. 00 — tuvsud.com/en/customer-hub/ps-cert/?q=A8DCW
Applies in: US and Canada
Issued to FreeSky's manufacturer, GuangZhou Yansan Science & Technology, on 19 September 2025, covering battery FP4818R0 at 48.1 V and 18 Ah. Tested to UL 2271:2018 and CAN/UL 2271:2018, test report 6828225088601. TÜV SÜD's own certificate register lists it as valid. TÜV SÜD certified it; we did not test it.
Each standard listed is an independent claim about this specific product — one standard does not imply compliance with another.
Compatible bikes
Sources
- TÜV SÜD certificate U10 128702 0009 Rev. 00 (UL 2271)MANUFACTURER DOCUMENT
TÜV SÜD America, Inc.
Source: cdn.shopify.com/s/files/1/0605/5188/9131/files/UL2271-Alaska-Pro-M520-18Ah.pdf
Retrieved September 8, 2026
- TÜV SÜD Certificate Explorer — U10 128702 0009 Rev. 00CERTIFICATION BODY RECORD
TÜV SÜD America, Inc.
Source: tuvsud.com/en/customer-hub/ps-cert/?q=A8DCW
Verified September 7, 2026