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RF Exposure

Qingwujie (Shenzhen) New Energy Co., Ltd CELLREGEN 2BME8-CELLREGEN 2BME8CELLREGEN cellregen

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Document DEVICE REPORTGetApplicationAttachment.html?id=7859087
FCC ID: 2BME8-CELLREGEN
RF Exposure Evaluation

Product Name: Model No.: Transmitting mode
Power supply:

Hydrogen Water Bottle BSS--1 Keep the EUT in continuously wireless charging mode Input: DC 5V1A Wireless charging Output: 5W

Test Modes:

TM1

AC Adapter + Wireless charging 5W

Record

-

-

-

Note: All modes have been tested and only the worst mode (Wireless Charging 5W) data is represented in the report.

1 Test Instruments list Software name EHP200-TS Adapter

Manufacturer
Narda
Qingwujie

Model
EHP-200A
CT-11

Version Rel 1.95
-

Equipment

Item Equipment No.

Manufacturer

name

Model

Serial No.

Calibration date

Due date

Electric and

Magnetic

EHP-200 180ZX1101

1

HB-E073

Narda

2024-06-07 2025-06-06

Field

A

3

Analyzer Note: the calibration interval of the above test instruments is 12 months and the calibrations are traceable to international system unit (SI).

2 Test Setup

3 Test Procedure
1) The RF exposure test was performed in anechoic chamber. 2) E and H-field measurements should be made with the center of the probe at a distance of 20m surrounding the device and 20 cm above the top surface of the primary/client pair. These measurements should be repeated for three different client battery levels, 1%, 50%, and 99%. 3) The highest emission level was recorded and compared with limit as soon as measurement of each points were completed. 4) The EUT was measured according to the dictates of KDB 680106 D01 v04. Limits The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency (RF) radiation as specified in 1.1307(b) Limits for Maximum Permissible Exposure (MPE)
4 Measuring Standard KDB 680106 D01 Wireless Power Transfer v04r01

5 Requirements
According to the item 5 of KDB 680106 D01 Wireless Power Transfer v04r01:
Inductive wireless power transfer applications that meet all of the following requirements are excluded from submitting an RF exposure evaluation.
(1) The power transfer frequency is below 1MHz.
Yes, the device operate in the frequency range from 110.5KHz to 205KHz.
(2) The output power from each transmitting element (eg., coil) is less than or equal to 5 watts.
Yes, the maximum output power of the primary coil is 5W.
(3) A client device providing the maximum permitted load is placed in physical contact with the transmitter (i.e., the surfaces of the transmitter and client device enclosures need to be in physical contact)
Yes, the surfaces of the transmitter and client device enclosures need to be in physical contact.
(4) Only §2.1091-Mobile exposure conditions apply (i.e., this provision does not cover §2.1093-Portable exposure conditions).
Yes, this device is a mobile device.
(5) 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 estimated maximum field strength, and for three points per axis or until a 1/d (inverse distance from the emitter structure) field strength decay is observed. Symmetry considerations may be used for test reduction purposes. The device shall be operated in 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.
The EUT field strength levels are less 50% x MPE limit.
(6) 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 the design allows one or more radiating structures to be powered at a higher level 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.
This device has only one wireless charging coil.

6 Test Result

Battery levels <1% <1% <1% <1% <1%

Maximum permissible Exposure

Test sides
Top Left Right Front Back

Test E ­field(V/m) H­field(A/m)
distance(cm)

20

2.367

0.258

20

5.321

0.222

20

5.654

0.374

20

3.626

0.141

20

1.623

0.137

Limit

614

1.63

50% Margin Limit

307

0.815

Battery levels <50% <50% <50% <50% <50%

Maximum permissible Exposure

Test sides
Top Left Right Front Back

Test E ­field(V/m) H­field(A/m)
distance(cm)

20

2.164

0.192

20

5.231

0.237

20

5.634

0.252

20

4.314

0.194

20

2.523

0.367

Limit

614

1.63

50% Margin Limit

307

0.815

Battery levels <99% <99% <99% <99% <99%

Maximum permissible Exposure

Test sides
Top Left Right Front Back

Test E ­field(V/m) H­field(A/m)
distance(cm)

20

2.738

0.337

20

4.734

0.131

20

6.628

0.353

20

3.532

0.268

20

2.387

0.241

Limit

614

1.63

50% Margin Limit

307

0.815

7 Test Setup Photo



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