SB6-355D, 6V 355Ah, EV/DC Series, (Group 305) Deep Cycle Battery
🚚 Freight Shipping Notice
Due to this product’s weight and risk of damage during transit, it can only be shipped via transport truck. Please click the Quick Freight Quote button and provide your shipping details for a custom freight quote.
💡 The lowest rate applies to a business address with unloading capability. Residential delivery includes tailgate lift service and incurs a $125 surcharge.
🔋 Deep Cycle AGM vs. Regular AGM: Why It Matters
Deep cycle AGM batteries are designed for repeated, sustained energy delivery—making them ideal for mobility devices, solar systems, RVs, marine use, and electric vehicles.
| Feature | Deep Cycle AGM | Regular AGM |
|---|---|---|
| Designed For | Frequent deep discharges (50–80%) | Short-term backup or starting |
| Plate Thickness | Thicker plates for durability | Thinner plates |
| Cycle Life | Higher (hundreds to thousands of cycles) | Lower |
| Energy Delivery | Stable over long periods | Short bursts of high current |
| Best For | Mobility, solar, marine, RVs | UPS, vehicle starting |
In summary: If your application requires consistent power through frequent charge/discharge cycles, a deep cycle AGM battery is the smarter, longer-lasting investment.
Please double-check that the batteries you're ordering match the ones in your unit before completing your purchase. We want to make sure you get exactly what you need!
SB6-355D Heavy-Duty 6V AGM Deep Cycle Battery – 355Ah Group 305
Power demanding energy systems with the high-performance SB6-355D AGM battery. Built for deep cycle applications, this heavy-duty 6V 355Ah battery delivers reliable long-duration power for solar energy storage, RV systems, marine equipment, off-grid installations, mobility platforms, and industrial applications. Featuring advanced VRLA AGM technology, this maintenance-free battery provides dependable performance, strong vibration resistance, and exceptional cycle life in demanding environments.
Technical Specifications
Why Choose the SB6-355D?
- Massive Deep Cycle Capacity: Delivers 355Ah of reliable energy storage for long runtime applications.
- Advanced AGM Technology: Maintenance-free, spill-proof, and sealed for safer operation.
- Built for Heavy Cycling: Thick plates and enhanced tin content improve deep cycle durability and lifespan.
- Excellent Vibration Resistance: Ideal for RVs, marine systems, campers, and mobility equipment.
- Flexible Installation: Can be installed in multiple orientations except inverted.
- High Surge Performance: Supports up to 3350A maximum discharge for demanding loads.
- Extreme Temperature Performance: Reliable operation in harsh weather and demanding outdoor environments.
- Certified Manufacturing Standards: Produced in ISO 9001, ISO 14001, and OHSAS 18001 certified facilities.
Typical Applications
- Off-grid solar energy systems
- Renewable energy storage banks
- Marine electrical systems
- RVs and camper power systems
- Electric mobility platforms
- Material handling equipment
- Industrial backup power systems
- Telecommunications equipment
- Large battery bank installations
- Deep cycle standby applications
Key Product Highlights
- Battery Chemistry: AGM VRLA (Valve-Regulated Lead Acid)
- Voltage: 6 Volts
- Capacity: 355Ah @ 20 Hour Rate
- Terminal Type: F22 (M8)
- Battery Group: BCI Group 305
- Maintenance: Maintenance-Free Design
- Installation: Multi-position mounting (except inverted)
- Performance: High vibration and deep cycle resistance
SB6-355D Battery FAQs
-
Is the SB6-355D maintenance-free?
Yes. This AGM VRLA battery is fully sealed and maintenance-free under normal operating conditions. -
Can this battery be used for solar systems?
Absolutely. The SB6-355D is commonly used in off-grid solar and renewable energy storage systems. -
Can the battery be mounted on its side?
Yes. The battery can be installed in multiple orientations except upside down. -
What type of terminals does this battery use?
The SB6-355D uses heavy-duty F22 (M8) threaded terminals. -
Is this battery suitable for RV and marine applications?
Yes. Its deep cycle design and vibration resistance make it ideal for RV, camper, and marine use.
Why Buy From Us?
- Canadian Company: Fast shipping from Canada.
- Warranty Protection: Includes a one-year warranty.
- 30-Day Return Window: Return eligible products within 30 days for a refund.
- Easy Replacement: Reuse existing connectors and cables where applicable.
- Expert Support: Assistance available for battery replacement and compatibility questions.
- Built for Demanding Use: Designed for reliable operation in heavy-duty deep cycle applications.
Freight Shipping Information
Due to the size and weight of this battery, shipping rates vary depending on destination and quantity ordered. To get an accurate shipping quote, simply add the required quantity to your cart and enter your province and postal code during checkout. Business addresses with unloading capability typically receive the lowest freight rates.
Reliable Deep Cycle AGM Power
The SB6-355D 6V AGM battery delivers dependable deep cycle performance for demanding energy storage systems. With its massive 355Ah capacity, rugged construction, and maintenance-free AGM design, this battery is an excellent choice for solar, RV, marine, mobility, and industrial applications requiring long-lasting, reliable power.
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💡 Shipping heavy or bulk items?
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
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Delivery and Shipping
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