Epoch 12V 50Ah Marine Lithium Battery – Heated, Bluetooth & Waterproof LiFePO4 Deep Cycle
Epoch 12V 50Ah heated LiFePO4 battery with Bluetooth monitoring, IP67 waterproof design, 3500+ cycles, smart BMS, and 11-year warranty.
Reference: B1250B
Available for local pickup at our Miami or Fort Lauderdale location
Free Shipping on Orders over $99
*On Orders Over $99; Not including: Hazardous, Oversize, Greater than (+150 lbs.) or Freight Advertised Products. FEDEX Ground Shipping / Continental US Only
Shipping Calculator
The Epoch 12V 50Ah Heated & Bluetooth LiFePO4 Battery delivers advanced lithium performance in a compact, marine-grade design built to handle the toughest conditions. Designed for deep-cycle power in marine, RV, and off-grid applications, this waterproof lithium battery combines internal heating, Bluetooth connectivity, and a Smart Battery Management System (BMS) for reliable and intelligent energy storage.
With over 3,500 life cycles, the 12V 50Ah model provides long-term reliability, faster charging, and higher discharge efficiency than traditional lead-acid batteries — all at a fraction of the weight. The self-heating system automatically warms the battery in cold climates, allowing safe charging below freezing temperatures. The Epoch mobile app (iOS & Android) provides real-time access to critical data such as voltage, temperature, and state of charge (SOC).
Its IP67 waterproof rating ensures full protection against dust and water immersion, while the Smart BMS continuously monitors voltage, current, and temperature to ensure maximum safety. Perfect for marine electronics, trolling motors, solar setups, or RV power systems, this maintenance-free lithium battery is built for performance and longevity.
Key Features
-
12V 50Ah LiFePO4 deep-cycle battery – ideal for marine, RV, and solar use
-
Internal heating system – enables charging in sub-zero conditions
-
Bluetooth monitoring – via iOS and Android apps
-
Smart BMS protection – safeguards against overcharge, discharge, short circuit, and thermal extremes
-
IP67 waterproof and dustproof – safe for harsh marine environments
-
3,500+ life cycles – dependable long-term energy storage
-
Series & parallel capable – up to 48V or 200Ah systems
-
Lightweight design – only 22 lbs
-
Maintenance-free & eco-friendly
-
11-year manufacturer warranty
| Epoch 12V 50Ah Heated & Bluetooth LiFePO4 Battery – Technical Specifications | |
|---|---|
| Chemistry | LiFePO4 (Lithium Iron Phosphate) |
| Battery Type | Deep Cycle – Heated & Bluetooth Series |
| Nominal Voltage | 12V |
| Capacity | 50Ah |
| Max Continuous Discharge | 100A |
| Max Continuous Charge | 150A (10 seconds) |
| Peak Discharge Current | 150A (30 seconds) |
| Cell Configuration | 4S |
| Series Configuration | Up to 4 batteries (48V system) |
| Parallel Configuration | Up to 4 batteries (200Ah total) |
| Max Charge Voltage | 14.6V |
| Operating Voltage Range | 10.8V – 14.6V |
| Cycle Life | 3,500+ cycles |
| Ingress Protection | IP67 – Fully Dust & Waterproof |
| Heating System | Internal heater for cold-weather charging |
| Bluetooth Connectivity | Epoch Smart App for iOS & Android |
| Smart BMS Protections | Overcharge, over-discharge, overcurrent, short circuit, temperature control |
| Charge Temperature Range | -20°C to 55°C (-4°F to 131°F) with heating |
| 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) – Max 12 months |
| Dimensions (L × W × H) | 13" × 10.25" × 11" |
| Weight | 22 lbs |
| Certifications | UL1973, CE, RoHS |
| Warranty | 11 Years (Manufacturer) |
Recommended Charging Settings
|
Setting |
Value |
|---|---|
|
Bulk / Absorption Voltage |
14.2V – 14.6V |
|
Absorption Time |
30 minutes per 200Ah in parallel setups |
|
Float Voltage |
13.4V – 13.8V |
|
Equalization |
Disabled |
|
Temperature Compensation |
0 mV/°C (none) |
|
Charge Rate |
50% of total battery capacity |
|
Charge Temperature Range |
-20°C to 55°C (-4°F to 131°F) with heating |
|
Discharge Temperature Range |
-20°C to 60°C (-4°F to 140°F) |
|
BMS High Voltage Cutoff |
14.6V |
|
SoC Recalibration Voltage |
14.6V |
Warranty & Compliance
The Epoch 12V 50Ah Heated & Bluetooth LiFePO4 Battery meets UL1973, CE, and RoHS safety standards. It includes an 11-year manufacturer warranty and complies with the Magnuson-Moss Warranty Act (15 U.S.C. 2302(C)), ensuring compatibility with marine, RV, and solar power systems without voiding OEM warranties.