12V 300Ah Cranking & Deep Cycle Lithium Battery (Dual Purpose) - Pro Series
Pickup available at our Marathon storefront
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12V 300Ah Cranking & Deep Cycle Lithium Battery (Dual Purpose) - Pro Series is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Items in stock gernally ship same day.
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12V 300Ah Cranking & Deep Cycle Lithium Battery (Dual Purpose) ...
12V 300Ah Cranking & Deep Cycle Lithium Battery (Dual Purpose) - Pro Series is backordered and will ship as soon as it is back in stock.
Description
Description
Why we carry Epoch: an American company that stands behind its batteries, answers the phone, and offers real tech support for boat and RV owners. Read why we buy Epoch
Upgrade your boat with the Epoch 12V 300Ah Group 8D marine lithium battery. A true dual-purpose powerhouse for starting outboards and running house loads.
Features
- Cranking (1,000A for 5 s, 800A for 10 s) and deep-cycle capacity in one battery
- Self-heating film warms cells to 50°F (10°C) before charging in the cold
- Bluetooth with the Epoch Pro app and over-the-air updates
- CAN Link in/out ports
- IP67 sealed case with heat-sink fins and pressure-relief valve
- BCI Group 8D footprint
- Up to 4 in series and 16 in parallel (max 4S4P)
- 6,000+ cycles at 80% DoD
- UL 1973 listed; 11-year warranty
Specifications
| Epoch part number | DP12300H |
| Electrical | |
|---|---|
| Capacity | 300Ah (3,840Wh / 3.84kWh) |
| Nominal voltage | 12.8V |
| Max charge voltage | 15.4V (maximum, not a charger target) |
| Operating voltage range | 10.0V to 15.4V |
| Max continuous discharge | 300A (150A recommended for daily use) |
| Peak discharge | 1,000A for up to 5 s; 800A for up to 10 s (tested above 60% SoC at 77°F / 25°C) |
| Max continuous charge | 300A (all sources combined) |
| Recommended charge current | 150A (0.5C) |
| Series / parallel | Up to 4 in series; up to 16 in parallel for 12V banks; max 4S4P (16 batteries) |
| Cells | LiFePO4, 4S3P |
| Cycle life | 6,000+ cycles (0.2C, 80% DoD, to 80% of initial capacity, 77°F / 25°C) |
| Charger settings | |
| Bulk / absorption | 14.2V recommended (14.2V to 14.6V range) |
| Float | 13.8V recommended (13.4V to 13.8V range); off preferred where supported |
| Equalization | Disabled |
| Temperature compensation | Disabled (0 mV/°C) |
| Temperature | |
| Charging | −4°F to 131°F (−20°C to 55°C) with self-heating |
| Discharging | −4°F to 140°F (−20°C to 60°C) |
| Storage | 32°F to 95°F (0°C to 35°C) recommended |
| Self-heating | Yes (internal heating film warms cells to 50°F / 10°C before charging) |
| Physical | |
| Weight | 81 lb (36.7 kg) |
| Dimensions (L × W × H) | 19.7 × 10.5 × 9.75 in (500 × 267 × 248 mm) |
| BCI group / footprint | Group 8D |
| Terminals | M8 bolt; torque 8–10 Nm (71–89 in-lb) |
| Water resistance | IP67 (dust-tight; temporary immersion to 1 m for 30 min; not rated for water jets or submersion) |
| Bluetooth | Yes, Epoch Pro app (iOS and Android) with over-the-air updates |
| Communications | CAN Link in/out ports (Victron and NMEA 2000 need the Pro Series communications box) |
| Certifications | UL 1973, CE, RoHS, UN 38.3 |
| Warranty | 11 years (register within 90 days) |
Dimensions
From Epoch: Epoch datasheet (PDF) · Epoch product page
Specs are from Epoch's published datasheet. Confirm system voltage, charger settings, wiring and installation requirements before use.
Ships directly from Epoch Batteries.
Payment & Security
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