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Letter of declaration KDB680106 requirement

America Ugreen Limited W526 2-in-1 Magnetic Wireless Charger 2BOTB-W526 2BOTBW526 w526

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Document DEVICE REPORTGetApplicationAttachment.html?id=8362950
America Ugreen Limited 108 West 13Th Street, Wilmington, Delaware19801, United States

Date: June 5, 2025

FCC ID: 2BOTB-W526

Model Number: W526

To: Federal Communication Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21048

To Whom It May Concern,

We, America Ugreen Limited hereby declare that our product (2-in-1 Magnetic Wireless

Charger) Model Number: W526 meet item 5.2 of KDB 680106v04 as follow;

Requirements of KDB 680106 D01

Yes / Description
No

The device operates in the

Power transfer frequency is less than 1 MHz Yes frequency range 110.1 KHz ­

205 KHz.

The output power from each transmitting element (e.g., coil) is less than or equal to 15 Yes watts.

The device contains two transmitter coisl, the maximum output power of coil is 7.5W.

A client device providing the maximum

permitted load is placed in physical contact

Client device is placed

with the transmitter (i.e., the surfaces of the Yes directly in contact with the

transmitter and client device enclosures need

transmitter.

to be in physical contact)

Only §2.1091- Mobile exposure conditions apply (i.e., this provision does not cover § 2.1093-Portable exposure conditions).

Mobile exposure condition Yes
only.

The E-field and H-field strengths, at and

beyond 20 cm surrounding the device

surface, are demonstrated to be less than 50%

of the applicable MPE limit, per KDB 447498, Table 1. These measurements shall be taken along the principal axes of the device, with one axis oriented along the direction of the Yes estimated maximum field strength, and for three points per axis or until a 1/d (inverse distance from the emitter structure) field

The E-field and H-field strengths, at and beyond 20 cm surrounding the device surface, are demonstrated to be less than 50% of the applicable MPE limit

strength decay is observed. Symmetry

considerations may be used for test reduction

purposes. The device shall be operated in

America Ugreen Limited

108 West 13Th Street, Wilmington, Delaware19801, United States

documented worst-case compliance scenarios

(i.e., the ones that lead to the maximum field

components), and while all the radiating

structures (e.g., coils or antennas) that by

design can simultaneously transmit are

energized at their nominal maximum power.

For systems with more than one radiating

structure, the conditions specified in (5) must

be met when the system is fully loaded (i.e.,

clients absorbing maximum power

available), and with all the radiating

structures operating at maximum power at

the same time, as per design conditions. If

Only one radiating structure

the design allows one or more radiating

Yes and tested at maximum

structures to be powered at a higher level

Output Power

while other radiating structures are not

powered, then those cases must be tested as

well. For instance, a device may use three RF

coils powered at 5 W, or one coil powered at

15 W: in this case, both scenarios shall be

tested

Please contact me if you have any question.

Sincerely,

(Signed) Printed Name of Signee / Title: Chi Yang / Manager Company: America Ugreen Limited Address: 108 West 13Th Street, Wilmington, Delaware19801, United States Phone: +86-755-28198930 Fax: N/A Email: [email protected]



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