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🔋 Power your sound, protect your vibe.
This DC 3.7V 800mAh 603040 rechargeable lithium-ion battery is a tailor-made replacement for Marshall MID Major II, III, and IV Bluetooth headphones. Featuring a compact 41×30×6mm form factor and weighing only 13.7g, it delivers reliable 3.7V nominal voltage with a max charge of 4.2V. Equipped with a Japanese Seiko IC, it ensures advanced protection against overcharge, overcurrent, and short circuits. The 3-wire high-temp silicone cable design supports easy DIY installation, making it the go-to power upgrade for audiophiles seeking extended battery life and safety.
| ASIN | B0C3HHVQ9R |
| Amperage | 1 Amps |
| Antenna Location | Protection |
| Battery Capacity | 800 Milliamp Hours |
| Battery Cell Type | Polymer |
| Best Sellers Rank | #59,768 in Electronics ( See Top 100 in Electronics ) #463 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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