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Epoch Batteries 12V 172Ah Cranking & Deep Cycle (Dual Purpose) LiFePO4 Battery
- 2.20kWh Dual-Purpose Powerhouse: Get the best of both worlds. Premium LiFePO4 chemistry engineered to effortlessly handle deep-cycle house loads (172Ah capacity) while also providing the heavy burst of power needed for reliable engine starting.
- Extreme Marine Cranking (1,000 CCA Equivalent): Never get stranded on the water. Specifically designed to replace standard starting batteries, delivering an immense 1,000A starting burst (for up to 5 seconds) to reliably turn over all outboard motors up to 250hp.
- Sustained Deep-Cycle Stamina: Once the engine is running, rely on the robust 200A max continuous discharge to confidently power your trolling motors, fish finders, and heavy onboard electronics all day long without voltage drops.
- Complete Visibility via Bluetooth: Eliminate the guesswork. Monitor your real-time state of charge, voltage, current draw, and overall battery health right from the helm using your smartphone and the free Epoch iOS and Android apps.
- Marine-Grade Durability (IP65 Rated): Built for the harsh realities of boating and the outdoors. The tightly sealed IP65-rated casing ensures your battery is highly protected against dust, dirt, and heavy water spray.
- Advanced Smart BMS Protections: Operate with total peace of mind. The intelligent built-in Battery Management System automatically safeguards your investment against overcharge, over-discharge, over-current, short circuits, and extreme high/low temperatures.
- Built for the Long Haul: Need more deep-cycle capacity? Safely connect up to 4 batteries in parallel. Enjoy a completely maintenance-free solution engineered to deliver an incredible 4,000+ charge cycles, proudly backed by our industry-leading 11-Year Manufacturer Warranty.
Technical Specifications
Clean reference specs for the Epoch 12V 172Ah Essential Series dual-purpose marine lithium battery.
| General | |
|---|---|
| Brand | Epoch Batteries |
| Model / SKU | 12172A-DP |
| Series | Essential Series |
| Battery type | Dual-purpose cranking and deep-cycle LiFePO4 battery |
| Battery group size | Group 31 |
| Chemistry | LiFePO4 / lithium iron phosphate |
| Cell type | Prismatic LiFePO4 |
| Cell configuration | 4S1P |
| Bluetooth | Yes — compatible with iOS and Android apps |
| Self-heating | No |
| Cycle life | 4,000+ cycles |
| Warranty | 11-year manufacturer warranty |
| Voltage and capacity | |
| Nominal voltage | 12.8V |
| Nominal capacity | 172Ah |
| Stored energy | 2.20kWh |
| Operating voltage range | 10.0V – 14.6V |
| Maximum charge voltage | 15.0V |
| Current ratings | |
| Max continuous discharge | 200A |
| Max continuous charge current | 200A |
| Peak discharge / cranking | 1,000A @ 5 seconds, cranking only |
| Cranking capability | Approx. 1,000 CCA equivalent |
| Series / parallel | Max 4 batteries in parallel; series wiring is not approved for this model |
| Temperature | |
| Charge temperature range | -5°C to 55°C / 23°F to 131°F |
| Discharge temperature range | -20°C to 60°C / -4°F to 140°F |
| Recommended storage temperature | 0°C to 35°C / 32°F to 95°F |
| Low-temperature charge protection | Yes |
| Dimensions and mechanical | |
| Overall dimensions | 12.91 in L × 6.22 in W × 8.46 in H |
| Metric dimensions | 32.79 cm × 15.80 cm × 21.49 cm |
| Weight | 40 lb / 18.14 kg |
| Terminal type | M8 female |
| Case material | ABS and PC blend |
| Flame rating | UL94-V0 |
| Enclosure protection | IP65 dust / water resistance |
| Recommended charging settings | |
| Bulk / absorption voltage | 14.2V – 14.6V |
| Absorption end condition | Stop when charge current is ≤ C/20 or 15 minutes max |
| Float voltage | 13.4V – 13.8V or disabled |
| Re-bulk voltage | 13.2V |
| Equalization | Disabled |
| Temperature compensation | 0 / disabled |
| Recommended charge rate | 50% of battery or battery-bank capacity |
| BMS high-voltage cutoff | 14.6V |
| SOC recalibration voltage | 14.6V |
| BMS protection and compliance | |
| BMS | Smart BMS with built-in battery management |
| Protections | Overcharge, over-discharge, over-current, short circuit, high temperature, low temperature, and low-temperature charge protection |
| Cell certification | UL 1642 cells |
| Thermal runaway testing | UL 9540A cells |
| Battery certification | IEC 62619:2022 |
| Compliance | CE, RoHS |
| Shipping classification | UN 38.3, Class 9 |
IP65 marine protection
Dust-resistant. Water-jet resistant. Built for demanding boat compartments.
The IP65-rated enclosure helps protect against dust, spray, and low-pressure water jets from any direction. It is suitable for many marine battery hatches and center-console installations, but it should not be submerged, pressure-washed, or installed where standing water can collect around the battery.
To properly charge your Epoch Batteries, you will want to verify that any charging component in your system is capable of being programmed for the following specifications. Charging components can include, but are not limited to converters, inverter chargers, solar charge controllers, DC to DC chargers, etc.
Bulk/Absorption: 14.2V – 14.6V
Absorption Time: Two batteries in parallel connections require 30 minutes 200Ah
Float: 13.4V – 13.8V
Equalization: 14.4V/ Disabled
Temperature Compensation: 0/Disabled
Charge Rate: 50% of the battery or battery bank capacity
Battery Charge Temperature Range: 32°F (0°C) to 131°F (55°C)
Battery Discharge Temperature Range: -4°F (-20°C) to 140°F (60°C)
Cell Charge Temperature: 32°F (0°C) to 131°F (55°C)
Cell Discharge Temperature: -4°F (-20°C) to 140°F (60°C)
NOTE: Not all chargers are capable of multistage charging. If yours is not, you will want to verify it can be programmed for the Bulk/Absorption voltage and have the other items mentioned disabled if applicable. Consult your charger's manual or the manufacturer.