Charging the rechargeable batteries

Caution! y Only use the charging case for charging the SK 2020 D transmitter, the HDE 2020 D stethoset receivers

and the BA 2015 accupack.

yNever try to charge other rechargeable batteries or non-rechargeable batteries.

 

Charging the BA 2015 accupack

 

For charging, the BA 2015 accupack can remain in the

 

transmitter.

 

 

Place the transmitter with the accupack inserted

 

into the charging compartment for accupack/

 

transmitter

as shown in the diagram on the left.

 

(Alternatively, you can remove the accupack from

 

the transmitter and insert it into the charging

 

compartment on its own – both charging compart-

 

ments are identical and can charge the occupied

 

either in or out of the transmitter.)

 

When placed into a charging compartment, the

 

transmitter automatically switches off. The red LED

￿

CHARGE

of the charging compartment lights up.

Charging a completely discharged accupack takes approx. 3½ hours at room temperature. It is normal for the accupacks to get hot during charging.

However, the charging process may take longer if:

ythe accupack is deep-discharged and first has to be reconditioned by a deep discharge recovery charge,

ythe ambient temperature is close to or over 40 °C, since, in order to protect the accupack, the charging process will be interrupted until the temperature has dropped to a safe level.

After the accupack has been fully charged, the green

LED READY lights up.

Notes:

yFor safety reasons, each charging process will be interrupted after 4 hours.

yWhen not using the BA 2015 accupack for extended periods of time, charge it about every three to six months.

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Sennheiser 2020 manual Charging the rechargeable batteries, Charging the BA 2015 accupack
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2020 specifications

In 2020, Sennheiser continued to cement its reputation as a leader in the audio industry with the launch of several innovative products that showcased cutting-edge technology and exceptional sound quality. Among the standout offerings were the Sennheiser Momentum True Wireless 2 earbuds, which combined premium sound with improved functionality and design.

The Momentum True Wireless 2 featured a sleek and compact design, offering enhanced comfort and a more secure fit for extended listening sessions. The earbuds were equipped with custom-engineered 7mm dynamic drivers that delivered rich, detailed sound with an emphasis on deep bass and clear treble. Sennheiser's superior sound engineering ensured that users experienced high-fidelity audio whether they were listening to music, making calls, or engaging in virtual meetings.

One of the standout characteristics of the Momentum True Wireless 2 was its active noise cancellation (ANC) technology. This advanced feature allowed users to immerse themselves in their audio without the distractions of the outside world. Additionally, the earbuds had a Transparency Mode, enabling listeners to hear their surroundings without having to remove the device, which was particularly beneficial for outdoor use or situations where situational awareness was crucial.

Battery life was another prominent feature of the Momentum True Wireless 2. With up to seven hours of playtime on a single charge and an additional 21 hours provided by the compact charging case, users could enjoy extended listening without frequent interruptions. The integration of the Sennheiser Smart Control app further enhanced the user experience, allowing for customization of sound profiles and access to features like EQ settings.

In 2020, Sennheiser also focused on professional audio solutions, including the introduction of new wireless microphone systems that catered to the needs of content creators and musicians. These systems embraced digital transmission technology, offering sophisticated features such as advanced frequency management and a robust transmission range.

Ultimately, Sennheiser's commitment to delivering exceptional audio experiences in 2020 was reflected in its blend of innovation and traditional craftsmanship. The company's dedication to quality, along with its adoption of modern technologies, ensured that users enjoyed an unparalleled listening experience across a diverse range of needs and preferences.
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