96V / 102V Electric Boat Battery, Pontoon Boat Batteries

As a project manager, you’re looking for performance, reliability, and value. Here’s why our battery is the right choice for your project ⇱.

⚡Go Further, For Longer: The upgrade from 23.5kWh to 31kWh is a game-changer. It means over 30% more range, giving your customers more time on the water and less “range anxiety.”

⚡Unmatched Safety & Peace of Mind: With lithium iron phosphate chemistry and our advanced BMS, you’re investing in the safest lithium technology on the market. It’s a reliable power source you and your clients can trust.

⚡Built to Last: A long cycle life (thousands of cycles) means this battery will last for years. It’s a long-term investment that reduces replacement costs and service calls down the road.

⚡Hassle-Free Upgrade Path: The design as a direct replacement makes the installation process smooth. For fleet owners or builders, this means less downtime and faster turnarounds.

⚡Impressive Performance: The high-voltage system delivers power efficiently, resulting in better acceleration and a more responsive feel for the boat operator.

⚡Partner with the Manufacturer: Skip the middleman. By working directly with us at Bonnen Battery, you get better pricing, direct support, and the ability to customize products.

⚡Your Project, Your Specs: Don’t let a standard battery limit your design. We offer custom battery solutions to ensure a perfect fit for your electric boat project, giving you a real competitive edge in the market.

✅ Pontoon boats ⇱, outboard motor — long weekend runs and day cruises with heavy passenger loads.

✅ Electric tenders & dinghies — quiet, low-maintenance shore-to-boat transport.

✅ Leisure runabouts & family boats — more range for lakes and coastal waters.

✅ Commercial passenger boats — predictable power for short commuter routes and tour boats.

✅ Fishing boats — extended trolling and support for onboard electronics.

✅ Hybrid solar-charged boats — pairs well with solar chargers and shore chargers for extended off-grid use.

✅ EV conversions & retrofit projects — for yards and shipyards upgrading ICE or old battery systems.

1. What exactly is the Bonnen 102V 31kWh battery?
This is a high-capacity lithium iron phosphate (LiFePO4) battery pack we designed specifically for electric boats. It provides 102 volts and 31 kilowatt-hours of energy, making it a powerful and long-lasting solution for marine propulsion.

2. What type of battery chemistry ⇱ do you use? Is it safe for a boat?
We use LiFePO4 (Lithium Iron Phosphate) chemistry. It is widely known as the safest and most stable lithium battery technology available. Combined with our advanced BMS, it provides the highest level of safety for marine applications.

3. I currently use traditional lead-acid batteries. Why should I upgrade to your marine lithium battery?
Upgrading from lead acid to our marine lithium (LiFePO4) battery is a major leap forward. You’ll immediately notice a huge reduction in weight (often 50-70% lighter), which improves your boat’s performance. Plus, you get a much longer lifespan, faster charging, and consistent power delivery without the “voltage sag” common with lead-acid batteries as they discharge. It’s a maintenance-free, modern power solution.

4. Is this battery considered a deep cycle battery? Can it also be used as a dual purpose battery?
Absolutely. LiFePO4 is the ultimate deep cycle technology, designed to be regularly discharged to a low state of charge without being damaged. While it’s built for high-power propulsion, its massive 31kWh capacity makes it an exceptional dual purpose battery. It can effortlessly run your propulsion motor while also powering all your onboard electronics (house loads) for extended periods

5. How well does this battery hold up in a marine environment?
It’s built tough for the water. The battery is fully sealed in a rugged, corrosion-resistant aluminum alloy case and has an IP67 waterproof rating ⇱, meaning it’s protected against dust, salt spray, and even temporary water immersion.

6. What kinds of boats can I install this battery in?
Our battery is a perfect fit for a variety of electric vessels, including pontoon boats, electric fishing boats, sailing yachts (for auxiliary power), and small commercial boats like water taxis or tour boats.

7. You mentioned a “BMS.” What is that and why is it important?
BMS stands for Battery Management System. It’s the “brain” of the battery. Our smart BMS constantly monitors the battery and protects it from potential issues like over-charging, over-discharging, or overheating. It ensures the battery operates safely and lasts as long as possible.

8. How much more range can I realistically expect with this battery?
By upgrading from a standard 23.5kWh battery to our 31kWh pack, you can expect over a 30% increase in range. This means less “range anxiety” and more freedom on the water.

9. I’m a project manager for a boat builder. Can you customize this battery for my needs?
Absolutely. We are the manufacturer, so we specialize in custom projects. We can modify connectors, communication protocols (like CAN bus), case dimensions, and other specs to create a perfect power solution for your specific boat design.

10. What are the benefits of buying directly from you, Bonnen Battery?
When you work with us, you’re partnering directly with the factory. This means you get better pricing by cutting out the middleman, direct access to our technical support team, and the flexibility to customize products for your projects.

11. Is the battery completely waterproof?
Yes. It has an IP67 rating, which is a high standard for waterproofing. It is fully protected from dust and can withstand being submerged in up to 1 meter of water for 30 minutes.

12. How long will this battery last?
Our LiFePO4 batteries are designed for a very long service life, capable of more than 4,000 of charge and discharge cycles. For the average user, this translates to many years of reliable performance.

13. The ePropulsion batteries are expensive. Is yours a more budget-friendly option?
Yes. If you are concerned about the high price of branded batteries, our solution is ideal. We provide a battery with more power and performance at a more competitive price point, making it a smarter financial decision for your project or upgrade.

14. What is the operating voltage of this system?
This is a high-voltage battery pack that operates at a nominal 102V. This high voltage is great for efficient power delivery to modern electric boat motors.