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The Epoch 12V 50A Marine and RV Lithium Battery Charger delivers high-output shore power and generator charging for large 12V LiFePO4 battery banks. It 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. At a glance: 12V LiFePO4 systems, 50A charge output, 120V AC input, IP67 dustproof and waterproof.
Key Features
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12V 50A LiFePO4 battery charger: High-output power engineered specifically for lithium chemistry, delivering a 50-amp charge with up to 95% efficiency to rapidly replenish large marine, RV, and off-grid battery banks.
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True plug-and-play convenience: Ready to charge right out of the box. Plugs into any standard 120V AC outlet and uses heavy-duty ring terminal connectors for a secure, low-resistance connection to your batteries.
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Intelligent charger protections: Fully automatic smart logic provides built-in, continuous protection against overcharging, reverse polarity, overvoltage, overcurrent, and short circuits.
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IP67 rated and waterproof: Fully sealed, dust-tight construction tested to survive the elements, with a rugged, shock-resistant design built to handle the vibration of RVs, marine vessels, and off-grid trailers.
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Advanced thermal management: The lightweight aluminum alloy housing acts as an efficient heatsink for safe, continuous high-amp charging in working temperatures from -40°C (-40°F) up to 60°C (140°F).
Blazing fast power for large 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.
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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.
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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.
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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.
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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.
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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.
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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.
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.
Built for mobile lithium charging
- 50A fast charging: ideal for large banks.
- Standard 120V input: household-style AC power.
- IP67 enclosure: dustproof and waterproof.
- 95% efficiency: efficient charging design.
- Ring terminals: secure battery connection.
- Smart protections: overcharge, polarity, thermal.
Suitable For:
- RV and camper lithium house batteries
- Marine house banks for boats, pontoons, and fishing rigs
- Boondocking generator charging for large battery banks
- Shore power charging at marinas, campsites, and RV parks
- Van life, overland, and mobile 12V LiFePO4 systems
- Large-capacity 12V backup and off-grid battery banks
Certifications & Standards
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IP67 (IEC 60529): Dust-tight, and protected against temporary immersion in up to 1 m of water for 30 minutes. Under IEC 60529 the first digit rates solids and the second rates water. Sealed against dust and dirt; not rated for water jets or pressure washing.
Please Note: For 12V LiFePO4 batteries rated to accept at least 50A of charge current. Not for AGM, flooded lead-acid, gel, SLA, or automotive starting batteries.
Please Note: A dedicated 0V BMS wake-up feature is not stated for this charger.
Please Note: For multi-battery banks, verify cable sizing, fuse protection, ventilation, and charge-current limits. IP67 is not rated for water jets or pressure washing.
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Specifications
Charger specifications
Brand: Epoch Batteries
Product: 12V 50A Battery Charger
SKU: CHG-12V50A
Compatible battery type: 12V Lithium iron phosphate / LiFePO4 batteries
System voltage: 12V
Output current: 50A
Input voltage: 120V AC
Output connector: Ring terminal connector
Housing: Lightweight aluminum alloy, doubles as heatsink
Charging efficiency: Up to 95%
Ingress protection: IP67 dustproof and waterproof
Working temperature protection: Overtemperature protection, -40°C to 60°C working temperature range listed
Protection features: Ambient temperature, reverse polarity, overcharge, output overvoltage, output overcurrent, and output short-circuit protection
Mobile-use design: Shock-resistant design for storage and operation in RV, marine, and mobile applications
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Recommended Charging Settings
Real-world charging times. Simple estimate based on amp-hour capacity divided by 50A; a 50A charger can add up to about 50 amp-hours per hour during the bulk stage.
- 100Ah: approx. 2 hours.
- 200Ah: approx. 4 hours.
- 300Ah: approx. 6 hours.
- 460Ah: approx. 9.2 hours.
- Actual recharge time varies with starting state of charge, battery temperature, BMS limits, wiring, charger tapering, and battery-bank configuration.
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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. Epoch does not explicitly state a dedicated 0V BMS wake-up feature for this charger, 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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Epoch Batteries Limited Warranty
Warranty Period
2-year limited warranty on Epoch-branded chargers (Epoch general warranty terms)
Epoch Batteries-branded products are covered against qualifying defects in materials and workmanship for the applicable warranty period, subject to Epoch's model-specific remedy schedule and the terms of its warranty policy. Epoch-branded chargers carry a 2-year limited warranty and accessories (such as fuel gauges and voltage reducers) a 1-year limited warranty, from the original purchase date.
Registration
Register your battery with Epoch within 90 days of purchase for full warranty coverage. If it is not registered within that time, the warranty period begins from the battery's original manufacturing date. Proof of ownership is required for any claim, and coverage is non-transferable and applies only to the original purchaser.
Remedy
After inspection and testing, Epoch will provide the applicable remedy for a qualifying manufacturing defect: an approved repair, a replacement, or a comparable-product offer according to the model's schedule. Typical repair turnaround is 3–10 business days once the product is received.
Exclusions
Coverage may be denied when a failure is caused by misuse, improper handling, installation or storage, or use outside the product's specifications. Examples include an unsecured battery; loose, corroded or improperly connected terminals; series or parallel connections beyond the manufacturer's recommendations; reverse polarity or short circuits; impact, fire or water submersion; storage above 140°F or below -40°F; prolonged storage fully discharged or batteries left uncharged for more than three months; poor crimps, undersized cables or damaged wiring; opened, modified or tampered products; and use in applications the battery was not designed for, including repeated engine starting on non-cranking models.
Obtaining Warranty Service
Start a claim through the Epoch Batteries Warranty Portal with your model and serial number, proof of purchase, a description of the issue and supporting photos or videos. If approved, Epoch provides an RMA number and packing instructions. Do not ship a product without a valid RMA. The customer arranges and pays for shipment to Epoch, packaged in compliance with lithium battery shipping rules. Epoch Batteries can be reached at 1-888-501-1846 or support@epochbatteries.com.
Visit Epoch's Warranty Page to review the full warranty terms.
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Shipping is typically through freight carriers and the actual shipping time is contingent on your location and the specific warehouse dispatching your order. Please allow for a 1-3 business day processing period before shipment, and an estimated delivery time of up to 7 business days. Your confirmation email will include delivery details and we will send you a tracking number as soon as one is available. If you ordered several separate items, you may receive multiple tracking numbers. Once the item has been shipped, the freight service will contact you to coordinate the date and time of delivery. If you require any special accommodations during delivery please let us know as soon as possible and let the delivery company know when arranging the appointment.
Typically, orders will be dropped off either curbside or outside your front door or garage. It is your responsibility to bring the order inside or to its final destination and to remove any existing items.
Depending on the item, parts may be shipped in multiple boxes, and assembly may be required. When your order is delivered, please check that you have all pieces of the item and that nothing is damaged. If your order is damaged during transit and external damage is visible, note the damage immediately, write it on the delivery documents, take photos and/or videos, and refuse shipment. If there is no visible external damage, accept the package but note “subject to concealed damage” on the delivery documents. Any damage upon delivery needs to be reported within 24 hours of delivery or you may not be eligible for a refund. For additional information on submitting claims, as well as incorrect item exchanges, and replacements, please see our Refund Policy.
For more information about shipping, please visit our complete Shipping Policy.
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Why Shop With Eco Emperor?
At Eco Emperor, our mission is to empower you to lead a sustainable and fun lifestyle with ease and confidence. Whether you're upgrading your outdoor experience or enhancing your eco-conscious journey, here’s why choosing us is a decision you can feel great about:
Expert and Customized Care
Our knowledgeable and friendly team is here to support you every step of the way. We pride ourselves on providing personalized service and swift responses to ensure a smooth and satisfying experience. Our dedicated team is available via phone, email, and live chat to provide you with prompt and helpful support.
Authorized Retailer of High-Quality, Trusted Products from Leading Brands
We partner with the best brands in the industry to bring you reliable, high-quality products. As authorized retailers, we guarantee authenticity and offer full manufacturer warranties on every item. You can trust that our products are built to last and perform efficiently.
Free & Fast Shipping
We know you’re eager to begin your new products or start your next outdoor adventure. That’s why we prioritize quick, reliable, and free shipping to get your orders to you on time and in perfect condition.
Competitive Pricing
We believe that sustainable living should be accessible to everyone. We offer competitive pricing on all our products, so you can enjoy high-quality eco-friendly solutions and outdoor products without breaking the bank.
Choose Eco Emperor for all your outdoor and eco-friendly product needs, and become part of a movement that’s embracing a more sustainable and adventurous lifestyle.
Thank you for supporting a greener, cleaner future, while enhancing your outdoor experiences and powering your adventures.💚
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