Epoch Batteries
12V 50A Lithium Battery Charger - Epoch Batteries
12V 50A Lithium Battery Charger - Epoch Batteries
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Fast 12V LiFePO4 charging
Epoch 12V 50A Marine & RV Lithium Battery Charger
High-output shore power and generator charging for large 12V LiFePO4 battery banks.
The Epoch 12V 50A LiFePO4 charger is built for RV owners, boaters, and off-grid users who need to recharge large 12V lithium house banks fast. With a 50-amp output, standard 120V AC input, IP67 dustproof and waterproof housing, ring-terminal output leads, and up to 95% charging efficiency, this smart lithium charger helps minimize generator runtime and maximize your time on the water, at camp, or off-grid.
Built for mobile lithium charging
Blazing Fast Power for Massive House Battery Banks
A 12V 50A RV lithium charger and marine house bank charger for users who care about time.
Small 10A or 15A chargers can take a full day or more to recover a large 300Ah or 460Ah lithium battery bank. The Epoch 12V 50A marine battery charger pushes significantly more current into compatible LiFePO4 batteries, making it a strong fit for RV house banks, van life power systems, boat house banks, solar backup systems, and high-capacity 12V off-grid batteries.
Minimize Generator Runtime While Boondocking
Run your portable generator for fewer hours by using a high-amp 12V charger that replenishes compatible lithium banks quickly. Less generator runtime means less fuel, less noise, and more quiet time at camp.
Maximize Your Time on Shore Power
When plugged into marina shore power, a campsite pedestal, or a compatible AC source, the Epoch 12V 50A charger helps top off your lithium bank faster so you are ready for the next drive, cruise, or off-grid stay.
Engineered for Lithium: The Smart LiFePO4 Advantage
A deep cycle lithium charger designed for 12V LiFePO4 battery systems.
High-Output Lithium Charging Profile
Built for 12V LiFePO4 batteries, this charger avoids the maintenance-style charging behavior found in many older lead-acid chargers and supports fast, efficient charging for lithium deep-cycle systems.
Overcharge and Output Protection
Built-in protection features include overcharge protection, output overvoltage protection, output overcurrent protection, and output short-circuit protection for added confidence during high-output charging.
Reverse Polarity and Thermal Protection
Reverse polarity protection, ambient temperature protection, and overtemperature protection help guard the charger and battery system against common installation and environmental risks.
Aluminum Alloy Heat-Sink Housing
The lightweight aluminum alloy body doubles as a heatsink, supporting efficient thermal management while keeping the charger compact enough for RV storage bays, boat compartments, and mobile use.
Recommended applications
Fast charging for large 12V LiFePO4 banks.
Real-World Charging Times & Technical Specifications
Clean reference data for RV owners, marine technicians, and off-grid installers.
*Simple estimate based on amp-hour capacity ÷ 50A. Actual recharge time varies with starting state of charge, battery temperature, BMS limits, wiring, charger tapering, and battery-bank configuration.
Charger compatibility note
Verify battery chemistry and maximum charge current before use.
This is a high-output charger for compatible 12V LiFePO4 battery systems. Do not use it on AGM, flooded lead-acid, gel, SLA, automotive starting batteries, or batteries with a maximum charge current below 50A unless the battery manufacturer specifically confirms compatibility. For multi-battery banks, verify cable sizing, fuse protection, ventilation, charge-current limits, and all manufacturer installation guidance.
Why choose a 50A lithium charger?
Spend less time charging and more time using your power system.
A large lithium house bank is only as useful as your ability to recharge it efficiently. The Epoch 12V 50A charger gives RV owners, boaters, and off-grid users a faster charging option from a standard 120V AC source, helping reduce generator hours, recover quickly from deep discharge, and keep high-capacity 12V LiFePO4 banks ready for the next trip.
Epoch 12V 50A Battery Charger FAQs
Common questions about RV charging, marine house banks, generator use, and lithium safety.
How fast will this 50A charger recharge my RV or boat battery bank?
A 50A charger can add up to about 50 amp-hours per hour during the bulk charging stage. As a simple estimate, divide your battery bank’s amp-hour capacity by 50: a 100Ah battery is about 2 hours, a 200Ah bank is about 4 hours, a 300Ah bank is about 6 hours, and a 460Ah bank is about 9.2 hours before allowing for tapering, temperature limits, and BMS behavior.
Can I run this charger from a portable RV gas generator?
Yes, provided your generator or inverter supplies stable 120V AC power and is sized appropriately for the load. A high-output 50A charger can dramatically reduce generator runtime compared with small factory converters, helping RV owners recharge large lithium banks faster while boondocking.
Is a 50A charge rate safe for my lithium battery?
Yes, as long as your specific 12V LiFePO4 battery or battery bank is rated to accept at least 50A of charging current. Always check the battery’s maximum charge current before use. This high-output charger is best matched with medium and large lithium banks, not small batteries unless their manufacturer approves a 50A charge rate.
Will this charger overcharge my batteries if I leave it connected at the marina or campsite?
The Epoch 12V 50A charger includes overcharge protection and is designed for safe LiFePO4 charging. For long-term storage or unattended shore-power use, always follow the battery manufacturer’s storage and charger guidance so the battery is maintained within its recommended limits.
My current charger will not recognize a fully depleted lithium battery. Will this one wake it up?
If a lithium battery is fully depleted and its BMS has entered protection mode, follow the battery manual or contact Epoch support before attempting recovery. The live product listing for this charger does not explicitly state a dedicated 0V BMS wake-up feature, so recovery procedures should be confirmed for your exact battery model.
Can I use this high-output charger on AGM or lead-acid batteries?
No. This charger is intended for 12V lithium iron phosphate (LiFePO4) batteries. Do not use it on AGM, gel, flooded lead-acid, SLA, or automotive starting batteries unless the battery manufacturer specifically confirms compatibility.
Can I use this charger for a 24V or 36V trolling motor battery system?
No. This charger is designed for 12V LiFePO4 systems. For 24V, 36V, 48V, or 72V lithium batteries, use a charger specifically designed for that system voltage.
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