Hi, just wanted to close up this years old thread by documenting that replacing the battery in the Marshall Mid ANC definitely works.[br]
[br]
I bought this battery on Amazon Germany: [link|https://www.amazon.de/dp/B0C3HHVQ9R?psc=1&ref=ppx_yo2ov_dt_b_product_details|DC 3.7V 800mAh 603040 Wiederaufladbare Li-Ionen Batterie für Marshall MID Major II Major III Major IV Bluetooth Kopfhörer VDL603040 SR603040|new_window=true][br]
[br]
Doing the battery swap is as easy as
1) twisting off the ear cushion on the left side (the one with the button)[br]
+
[image|3171727]
[image|3171728]
2) Unscrewing the 4 screws[br]
+
[image|3171729]
3) Unscrewing the 3 screws holding the PCB in place[br]
+
[image|3171734]
[image|3171735]
4) Unseating the old battery, which is most likely taped to the bottom by double-sided sticky foam[br]
+
[image|3171733]
[image|3171732]
5) Unsoldering the 3 battery leads, soldering the 3 leads from the new battery (red=B+, black=B-, white=NTC)[br]
+
[image|3171731]
[image|3171730]
-
...and putting it all together again in reverse order. Everything seems to be working including charging. Have fun!
+
...and putting it all together again in reverse order. Everything seems to be working including charging.
Hi, just wanted to close up this years old thread by documenting that replacing the battery in the Marshall Mid ANC definitely works.[br]
[br]
I bought this battery on Amazon Germany: [link|https://www.amazon.de/dp/B0C3HHVQ9R?psc=1&ref=ppx_yo2ov_dt_b_product_details|DC 3.7V 800mAh 603040 Wiederaufladbare Li-Ionen Batterie für Marshall MID Major II Major III Major IV Bluetooth Kopfhörer VDL603040 SR603040|new_window=true][br]
[br]
Doing the battery swap is as easy as
1) twisting off the ear cushion on the left side (the one with the button)[br]
[image|3171727]
[image|3171728]
2) Unscrewing the 4 screws[br]
[image|3171729]
3) Unscrewing the 3 screws holding the PCB in place[br]
[image|3171734]
[image|3171735]
4) Unseating the old battery, which is most likely taped to the bottom by double-sided sticky foam[br]
[image|3171733]
[image|3171732]
5) Unsoldering the 3 battery leads, soldering the 3 leads from the new battery (red=B+, black=B-, white=NTC)[br]
[image|3171731]
[image|3171730]
...and putting it all together again in reverse order. Everything seems to be working including charging. Have fun!