Eternal Lithium
Eternal Lithium 36V 67Ah BC Package – Battery + Waterproof Charger
$1,599.00
Eternal Lithium 36V 67Ah BC Package – Battery + Waterproof Charger
$1,599.00
Get it between October 26 and October 28.
Low in stock
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At MarineXGear, we are proud to have the best refund and return policies in the industry. If you’re not satisfied with your purchase for any reason, you may return it to us within 30 days for a refund.
If you have a problem with our order (there are missing components, damages, or the product is not functioning), please reach out to us as quickly as possible. Some of the problems can be resolved by going through the product manual or the product FAQs.
Refer to our Refunds & Return Policy for more details.
Order Processing
Once we receive your order, we will send you a confirmation email. Then we will process the order by confirming that the product is in stock and ready for shipment. If any of the items in your order are back-ordered, we will reach to you via email or phone and you may choose to either wait or receive a 100% refund.
Please allow 1-3 days for processing your order.
Shipping
We ship to the lower 48 continental United States only at this time.
Shipping times and shipping method will depend on the specific product and brand you purchase. If you have any shipping question, feel free to ask on the chat or email us at info@marinexgear.com.
We will send tracking information by email the same day the shipping tracking number is created/available.
Before you sign the shipping bill, please THOROUGHLY INSPECT YOUR ITEM. Signing for the receipt of a damaged product removes the liability of the shipping company and MarineXGear. Once you accept your shipment as non-damage, your item is your property.
Eternal Lithium 36V 67Ah BC Package – Battery + Waterproof Charger
Power your time on the water with the Eternal Lithium 36V 67Ah BC Package. This package includes a 36V 67Ah lithium battery and a compatible waterproof 36V charger, providing a convenient power solution for compatible marine applications.
With Bluetooth connectivity and mobile app monitoring, you can check battery status through your connected device. The included charger is designed to support convenient charging, helping you maintain your battery according to the manufacturer's recommendations.
Key Features
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67Ah Battery Capacity: Designed for compatible 36V marine power systems.
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Waterproof Charger Included: Comes with a waterproof 36V charger.
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Bluetooth Connectivity: Connect to the mobile app for battery status monitoring.
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Battery Management System (BMS): Includes protection against overvoltage, undervoltage, overcurrent, temperature-related issues, and short circuits.
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IP67 Protection Rating: Listed water and dust resistance.
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Group 31 Size: Designed around Group 31 battery sizing for installation planning.
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High Peak Discharge Capability: Rated for up to 190A for 3 seconds, according to the supplied specifications.
Package Includes
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1 × Eternal Lithium 36V 67Ah battery
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1 × Waterproof 36V charger
Battery Specifications
| Specification | Details |
|---|---|
| Product Name | Eternal Lithium 36V 67Ah BC Package |
| Rated Voltage | 38.4V |
| Rated Capacity | 67Ah |
| Maximum Charge Voltage | 43.8V |
| General Cut-Off Voltage | 30V |
| General Charge Current | 25A |
| Continuous Discharge Current | 67A |
| Maximum Peak Discharge Current | 190A for 3 seconds |
| Dimensions / Fitment | Group 31 |
| Weight | 56 lb |
| Water and Dust Resistance | IP67 |
Battery Management System (BMS)
The battery includes the following listed protection functions:
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Overvoltage protection
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Undervoltage protection
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Overcurrent protection
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Temperature protection
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Short-circuit protection
Standard Charging Specifications
| Specification | Details |
|---|---|
| Charge Voltage | 43.8V |
| Charge Mode | CC-CV |
| Listed Charge Current Range | 5A–80A |
| Recommended Charge Current | Below 40A |
| Maximum Charge Current | 80A |
| High-Temperature Charge Protection | 60°C |
| High-Temperature Recovery | 50°C |
| Low-Temperature Charge Protection | 0°C |
| Low-Temperature Recovery | 5°C |
Standard Discharge Specifications
| Specification | Details |
|---|---|
| Continuous Discharge Current | 67A |
| Maximum Peak Current | 190A for 3 seconds |
| Discharge Cut-Off Voltage | 36V |
| High-Temperature Protection | 65°C |
| High-Temperature Recovery | 55°C |
| Low-Temperature Protection | -20°C |
| Low-Temperature Recovery | -10°C |
Operating Environment
| Condition | Temperature Range |
|---|---|
| Charging | 0°C to 45°C (32°F to 113°F) |
| Discharging | -20°C to 65°C (-4°F to 149°F) |
| Storage | 5°C to 45°C (41°F to 113°F) |
| Listed Relative Humidity | 60% ± 25% |
Bluetooth Monitoring and Battery Care
Use the compatible mobile app to monitor battery status over Bluetooth. For best results, follow the manufacturer's charging and storage recommendations and confirm that the charger is compatible with the battery's specified charging voltage and current limits.
Is the Eternal Lithium 36V 67Ah BC Package Right for You?
This package is a practical option for boat owners seeking a 36V battery and charger together, with Bluetooth monitoring and listed battery protection features. Before ordering, confirm that the battery's dimensions, electrical specifications, and charger are suitable for your boat's electrical system.
Why Choose MarineXGear
At MarineXGear, we believe true peace of mind on the water starts with having the right equipment. Our mission is simple: to be the trusted destination for premium marine gear and dependable on-water solutions. Every product we carry — whether navigation systems, safety equipment, marine electronics, or boat accessories — is carefully chosen to help you perform at your best, stay safe, and get the most out of every voyage.
A+ Customer-First Approach
We're more than an online store — we're your partner on the water. Unlike large, impersonal retailers, our dedicated team delivers personalized guidance at every step. Whether you're outfitting a vessel for the first time, upgrading your gear, or need expert advice on a specific product, our specialists are always just a call or email away.
Passion for Wellness & Resilience
Our brand is built on a genuine love for the sea. We live and breathe marine equipment — and when you reach out to MarineXGear, you'll connect with experts who understand both the technical specs of our products and the on-water lifestyle they support.
Trusted Experts, Curated Brands
We partner directly with the most respected names in the marine industry. Our curated selection ensures every product meets our high standards for quality, durability, and performance on the water. With MarineXGear, you shop with confidence, knowing you're investing in proven gear backed by full manufacturer warranties.
More Reasons to Choose MarineXGear
- Price Match Guarantee – We’ll match any competitor to ensure you always receive the best value.
- Free Shipping – Enjoy free delivery on most orders across the lower 48 U.S. states.
- 100% Secure Ordering – Our platform uses SSL encryption to protect your information.
- Exclusive Packages & Volume Discounts – Customized solutions available for clinics, wellness centers, and large orders.
- Authorized Dealer – Every order is protected with full manufacturer support and warranties.
At MarineXGear, we're committed to keeping you safe, equipped, and confident on the water. With our expertise, personalized service, and carefully curated selection, you can invest in your vessel and your adventures with complete peace of mind.
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