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Epoch 12V 50Ah Marine Lithium Battery – Essential Series LiFePO4 | Bluetooth Deep Cycle
Epoch 12V 50Ah LiFePO4 deep cycle battery – Bluetooth, IP54 weatherproof, 4000+ cycles, smart BMS, series & parallel capable, 11-year warranty.

The Epoch 12V 50Ah Essential Series LiFePO4 Battery provides reliable, maintenance-free power for smaller marine, RV, and solar applications. Designed for long life and consistent performance, this compact lithium battery offers 4000+ cycles, Bluetooth connectivity, and an IP54 weatherproof design, making it ideal for both freshwater and light marine environments.
Built with high-quality LiFePO4 chemistry and a Smart Battery Management System (BMS), the 12V 50Ah model protects against overcharge, deep discharge, short circuits, and extreme temperatures. It delivers steady, efficient power for trolling motors, fish finders, and auxiliary systems.
Through the Epoch Pro App, you can monitor all key battery metrics — voltage, current, temperature, and State of Charge (SOC) — and even manage multiple batteries simultaneously in configurations such as 36V 50Ah systems.
With series and parallel flexibility, maintenance-free operation, and an 11-year warranty, the Epoch Essential Series combines safety, simplicity, and smart monitoring in one durable, compact lithium battery.
Key Features
-
12V 50Ah LiFePO4 deep-cycle battery with Bluetooth monitoring
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4000+ cycle life at 100% depth of discharge
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Smart BMS with full protection for overcharge, over-discharge, and short circuit
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Bluetooth connectivity via iOS and Android with system-wide monitoring
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Series/parallel capable — up to 4 in series or 8 in parallel
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Lightweight & compact design – only 14.3 lbs
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Weather-resistant IP54 rating for outdoor use
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Zero maintenance and 11-year manufacturer warranty
| Epoch 12V 50Ah Essential Series – Technical Specifications | |
|---|---|
| Chemistry | LiFePO4 (Lithium Iron Phosphate) |
| Battery Type | Deep Cycle – Essential Series |
| Nominal Voltage | 12.8V |
| Capacity | 50Ah |
| Max Continuous Discharge | 50A |
| Max Charge Current | 50A |
| Peak Discharge Current | 170A (3 seconds) |
| Cell Configuration | 4S |
| Series Configuration | Up to 4 batteries (48V system) |
| Parallel Configuration | Up to 8 batteries (400Ah total) |
| Max Charge Voltage | 14.6V |
| Operating Voltage Range | 10.0V – 14.6V |
| Cycle Life | 4000+ cycles (typical) |
| Ingress Protection | IP54 – Weatherproof |
| Bluetooth Connectivity | iOS & Android via Epoch Pro App |
| Smart BMS Protections | Over/under-voltage, short circuit, overcurrent, temperature disconnects |
| Charge Temperature Range | 0°C to 55°C (32°F to 131°F) |
| Discharge Temperature Range | -20°C to 60°C (-4°F to 140°F) |
| Storage Temperature | 0°C to 35°C (32°F to 95°F) – up to 12 months |
| Dimensions (L × W × H) | 7.75" × 6.5" × 7" |
| Weight | 14.3 lbs |
| Certifications | UL1973, RoHS, CE |
| Warranty | 11 Years (Manufacturer) |
Recommended Charging Settings
|
Setting |
Value |
|---|---|
|
Bulk / Absorption Voltage |
14.2V – 14.6V |
|
Absorption Time |
30 minutes per 200Ah (two in parallel) |
|
Float Voltage |
13.4V – 13.8V |
|
Equalization |
Disabled |
|
Temperature Compensation |
Disabled |
|
Charge Rate |
50% of battery or bank capacity |
|
Charge Temperature Range |
32°F to 131°F (0°C to 55°C) |
|
Discharge Temperature Range |
-4°F to 140°F (-20°C to 60°C) |
Warranty & Compliance
The Epoch 12V 50Ah Essential Series Battery meets UL1973, CE, and RoHS standards for safety and performance. It is protected under the Magnuson-Moss Warranty Act (15 U.S.C. 2302(C)), ensuring that use in boats, RVs, or other vehicles cannot void manufacturer warranties unless proven defective.