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🔋 Power up your vibe with the ultimate Marshall battery upgrade!
This HXJNLDC 3.7V 800mAh rechargeable lithium-ion polymer battery is engineered for Marshall MID Major II, III, and IV Bluetooth headphones, delivering reliable, long-lasting power in a compact 41×30×6mm form factor. Featuring advanced Japanese Seiko IC protection against overcharge, overcurrent, and short circuits, it ensures safe and efficient performance. Lightweight at 13.7g and equipped with a 3-wire connector, it’s perfect for direct replacement or DIY electronic projects requiring 3.7-5V power under 2.96Wh.







| ASIN | B0C3HHVQ9R |
| Amperage | 1 Amps |
| Antenna Location | Protection |
| Battery Capacity | 800 Milliamp Hours |
| Battery Cell Type | Polymer |
| Best Sellers Rank | #70,126 in Electronics ( See Top 100 in Electronics ) #522 in Rechargeable Household Batteries |
| Brand | HXJNLDC |
| Compatible Phone Models | Headphones |
| Country of Origin | China |
| Customer Reviews | 4.1 4.1 out of 5 stars (85) |
| Item Dimensions | 41 x 30 x 6 millimeters |
| Item Weight | 13 Grams |
| Manufacturer | HXJN |
| Number of Batteries | 1 Lithium Polymer batteries required. (included) |
| Reusability | Rechargeable |
| UPC | 754525114697 |
| Voltage | 3.7 Volts (DC) |
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