If you feel your Sena 20S-EVO Bluetooth headphones batterylife isn’t as good as before, replacing it with a 3.7V 1200mAh battery is undoubtedly a cost-effective option. Below is detailed information about this battery to help you make the right decision.
This battery meets standard specifications for your convenience: Voltage: 3.7V (nominal voltage)
SENA 20s-evo Headphone Battery Capacity: 1200mAh. This capacity provides longer battery life compared to the original battery. Type: Lithium-polymer battery (Li-Polymer), Power: 4.44Wh (watt-hours), Dimensions: Approximately 53.0 x 33.9 x 5.7 mm (based on common 503450 cells; actual dimensions may vary by brand).
This High-quality Sena 20S-EVO Bluetooth headphones battery is primarily compatible with the following models:
Sena 20S EVO 20S-EVO-01
Sena 20S-EVO Series
Replacing the SENA 20s-evo earphone battery requires some hands-on skills. Please carefully refer to the following steps:
Required Tools: Prepare a small screwdriver, plastic pry bar, and other disassembly tools.
Careful Disassembly: Exercise extreme care when opening the Sena 20S EVO earphone casing. The most crucial step is to disconnect the 16-pin ribbon cable connecting the motherboard and the battery before completely removing the back cover. Excessive force may damage the ribbon cable, a common lesson learned from many failed DIY replacement attempts.
Connecting the New Sena 20S-EVO Bluetooth headphones battery: Accurately insert the new battery’s connector into the corresponding port on the motherboard.
Functional Testing: Before closing the casing, turn on the earphones to confirm that they can power on, charge, and function normally.
Reassembling the Shell: After confirming all functions are working properly, carefully reassemble the shell and tighten the screws.
Precautions and Recommendations:
Capacity and Quality: While the 1200mAh capacity seems attractive, the actual lifespan of non-branded batteries may take some time to verify. When purchasing, it is recommended to prioritize reputable brands that offer warranties.
Sena 20S-EVO Bluetooth headphones battery “Activation”: Upon receiving the new battery, for the first 3-5 uses, completely deplete the charge before fully charging it. This helps the battery achieve optimal performance.
Safe Use:
Do not disassemble, modify, or short-circuit the battery yourself.
Avoid placing the battery in high-temperature, humid, or near fire sources.
For long-term storage, it is recommended to fully charge the SENA 20s-evo headphone battery and store it in a cool, dry place after removal.
Summary: In conclusion, replacing the battery in your Sena 20S EVO headphones (using a 3.7V 1200mAh battery) is a wise move to extend its lifespan. Understanding basic battery specifications, choosing a reliable brand, and installing it carefully can easily preventSena 20S-EVO Bluetooth headphones batterylife issues caused by aging. Small investment, big returns—why not?
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