7.4V, Li-ion, 3350mAh, Speaker battery fits Marshall, Stockwell Ii, C406A3 - 24.79Wh
This battery is not for C406A1 10.8V version. Please verify your battery version before ordering.
CS-MRS200XL Speaker Battery (3350mAh) – Power Your Marshall Stockwell II with Confidence!
Upgrade your Marshall Stockwell II speaker with the high-performance Cameron Sino CS-MRS200XL replacement battery. Designed to deliver long-lasting and reliable power, this 7.4V Li-ion battery offers a 3350mAh capacity with an energy rating of 24.79Wh, ensuring uninterrupted music playback whenever you need it. Whether you’re at home, on the go, or hosting an outdoor event, this premium-quality battery provides the power your speaker needs to keep up with your lifestyle.
Compatible Models
This replacement battery is specifically designed to fit the following Marshall model:
- ✅ Marshall Stockwell II
Important Note: This battery is NOT compatible with the C406A1 10.8V version.
Part Number
This battery is a perfect replacement for the following Marshall part number:
- 🔹 C406A3, C406A3-1
Not for C406A1 10.8V version.
Why Choose Cameron Sino Batteries?
- Premium Performance – Equipped with high-quality Li-ion cells, this battery ensures optimal power efficiency and extended playtime, keeping your speaker running longer.
- Perfect Compatibility – Engineered to seamlessly replace the original Marshall C406A3 battery, providing a hassle-free installation and perfect fit.
- Reliable and Durable – Manufactured under strict quality control standards (ISO 9001 certified) to guarantee longevity, safety, and performance.
- Lightweight and Compact – At only 102g (3.60oz), this battery is easy to install without adding unnecessary weight to your speaker.
Key Features
- 🔋 Battery Type: Li-ion
- ⚡ Capacity: 3350mAh
- 🔌 Voltage: 7.4V
- ⚡ Energy Rating: 24.79Wh
- 📏 Dimensions: 69.00 x 38.70 x 21.00mm
- 🎨 Color: Blue
- ⚖ Weight: Net: 102g (3.60oz), Gross: 127g (4.48oz)
Warranty and Returns
- 🛡 1-Year Replacement Warranty – Get peace of mind knowing your purchase is backed by a full-year warranty against any manufacturing defects.
- 🔄 30-Day Return Policy – If this battery doesn’t meet your expectations, you can return it within 30 days for a refund.
Before purchasing, please verify that this battery is compatible with your Marshall Stockwell II speaker and that your original battery model is C406A3 (NOT C406A1 10.8V version).
🎵 Power your music with confidence – Upgrade to the CS-MRS200XL replacement battery today! 🎶
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If your order includes multiple heavy products, we recommend requesting a custom quote — we may be able to arrange a better rate with a transport truck!
Please note: We reserve the right to send heavier items by transport truck if the carrier's maximum weight per package is exceeded or if we consider it too risky to place with a courier due to the possibility of damage occurring.
🔋 What’s mAh All About?
🔋 What’s mAh All About?
mAh stands for milliamp hours—basically, how much "fuel" your battery can hold. A higher or lower mAh than your original battery? No worries! 🙌 It won’t affect charging or operation—just means your device might run a bit longer or shorter between charges. Still 100% compatible. Still 100% awesome. 💪✨
Before ordering please read
Before ordering please read
Ensure the original battery model number is mentioned in our product description and verify that your device model number is also listed in the description.
How to Look after your new lithium battery!!
How to Look after your new lithium battery!!
See how to look after your battery if its lithium Lithium Care
Delivery and Shipping
Delivery and Shipping
See our shipping policy and details at this link Shipping Details
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Not sure which replacement battery you need? Just snap a Photo / Video of your current battery and send it our way! Our team will quickly identify the exact match and recommend the perfect replacement model — no guesswork, no hassle.
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