Headphone not turning on

My marshall major iv headphone not turning on and not able to charge but works fine with 3.5mm audio jack cable. I'm guessing that's because battery is faulty. I found dissemble video online and battery is Li-Pol battery with 3.7V (3-pin connector). Can I just buy the same kind of battery and fix it myself (no need for soldering)? Can I just plug in the 3 pin with the little chip inside the headphone?

Headphone battery

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The battery I want to buy

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Hi Htet, just reporting my personal experience, some time ago I had to change the internal Li-Poly battery on a Panasonic RP-HF400B, couldn't find the exact same part but bought one off ebay with similar shape and specs (2pin, 3.7V, 450mAh vs the original which was 430); luckily it fit in the slot perfectly and to date it's still working fine, no issues whatsoever; I just checked and it's branded vhbw, for what it's worth. Hope this helps and you're able to fix yours too

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@simone_i Thank you for your response. The battery I want to buy is smaller in width and length than the original one. So I'm hoping it will fit exactly and fix my headphone.

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