Epoch Batteries 12v - 300ah ESSENTIAL SERIES Deep Cycle Lithium Battery

Epoch Batteries 12.8V 300Ah Essential Series Marine Lithium Battery

Built for demanding energy storage needs, this 12v lithium battery delivers dependable output, fast recovery, and long-lasting performance in a compact footprint. With the runtime advantages of a 300ah deep cycle battery, it is a practical choice for boats, solar banks, RV power systems, and off-grid backup setups.

As an essential series battery, it is designed to balance durability and everyday usability with features that support efficient charging, strong discharge capability, and low-maintenance operation. Whether you need a lithium solar battery for renewable energy or a marine lithium battery for onboard power, this model is built to handle consistent demand.

Built for dependable deep-cycle performance

Compared with lead-acid alternatives, this battery offers more usable energy, less maintenance, and a lighter overall system weight. The LiFePO4 design helps maintain stable voltage under load, making it a reliable fit for appliances, electronics, trolling motors, and other high-use equipment.

• Stable output: Supports devices that perform best with consistent voltage
• Long service life: Designed for repeated charge and discharge cycles
• Lower upkeep: No watering or routine equalization required
• Compact power: High capacity without the bulk of traditional batteries

Epoch Batteries company information

Epoch Batteries is a U.S.-based manufacturer focused on modern lithium energy storage for marine, RV, solar, and backup applications. Their support resources and product documentation make it easier to match the right battery with the right charging equipment.

Brand: Epoch Batteries

Business Since: 2022

Address: 164 Andrew Dr., Stockbridge, GA 30281

Phone: (888) 501-1846

Website: www.epochbatteries.com

Product Support Video: Watch company profile and product overview

Smart monitoring, protection, and connectivity

This 12v lithium battery includes features that simplify system monitoring and improve usability in compatible setups. When paired with supported equipment, owners can track battery behavior and communicate with the battery through connected devices.

• Bluetooth: Yes
• Mobile Application: Yes
• CAN Communication: Yes
• Self Heating: Yes
• Owner's Manual: No
• OEM Display Cluster Integration: Not applicable

These tools are especially useful in marine and solar environments where easy status checks can help simplify system management.

Charging guidelines for solar, RV, and marine use

To get the most from this lithium solar battery or marine lithium battery, use a charger, inverter charger, or solar controller that supports lithium charging profiles. Correct settings help protect the battery and support efficient charging.

• Bulk/Absorption: 14.2V to 14.6V
• Float: 13.4V to 13.8V
• Equalization: Disabled, unless your equipment requires a compatible override
• Temperature Compensation: Disabled
• Charge Rate: Up to 50% of battery or battery bank capacity
• Charge Temperature Range: 32°F to 131°F
• Discharge Temperature Range: -4°F to 140°F

Important: If your charging hardware cannot be fully programmed, confirm that voltage limits match the battery requirements and disable unsupported features. This helps prevent charging conflicts and keeps the system operating correctly.

Technical specifications at a glance

• Voltage: 12.8V
• Amp Hour Rating: 300Ah
• Energy Storage: 3.84 kWh
• Cell Type: LiFePO4 - 4S/1P
• Voltage Range: 10V to 14.6V
• Series / Parallel: 4 series, 4 parallel
• Peak Discharge Current: 400A for 3 seconds
• Continuous Discharge Current: 200A
• Cold Cranking Amps: NA
• Recommended Discharge Temperature: -4°F to 140°F
• Charging Temperature: 34°F to 140°F
• Dimensions: 13.75" x 7.63" x 10"
• Weight: 58 lbs
• Case Type: Plastic shell
• Enclosure Rating: IP54
• Terminal Type: M8 female / 8-12 N.m
• Self Discharge: 3% per month

Data Sheet: Download the product datasheet

Where this 300Ah deep cycle battery works best

If your system needs longer runtime and fewer recharge cycles, this 300ah deep cycle battery is well suited for energy storage banks, marine electronics, RV appliances, and renewable power systems. Its high-capacity design helps reduce downtime while supporting steady power delivery in everyday and emergency use.

• Marine power: Supports onboard accessories, fish finders, and other electronics
• Solar storage: Strong fit for off-grid and hybrid renewable systems
• RV applications: Reliable energy for lighting, small appliances, and mobile living
• Backup systems: Helpful during outages or remote operation

Installation and care tips for better performance

• Match your charger settings to lithium-compatible voltage values before first use.
• Use properly sized cable and fuse protection for high-current loads.
• Mount the battery securely to reduce vibration in boats and mobile systems.
• Avoid charging or discharging outside the recommended temperature range.
• For extended storage, keep the battery at a partial state of charge in a cool, dry location.

Technical support and warranty coverage

Epoch Batteries provides direct support Monday through Friday from 9am to 5pm EST, along with online scheduling for additional help. If you are building a lithium solar battery bank or replacing an older marine unit, their team can help confirm compatibility and recommended charging settings.

Technical Support: www.epochbatteries.com/support

Warranty: 11-year coverage with 3 years at 100% and 9 years prorated

Warranty Link: Review warranty details

Frequently asked questions about this essential series battery

Upgrade your power system today

Choose this essential series battery if you want high-capacity lithium storage, smart connectivity, and reliable performance from a trusted U.S. battery supplier. Shop now at AwesomeBatteries.com for free shipping, expert support, and a better way to power your next marine, solar, RV, or backup setup.