If you're a boater looking for reliable power for your engine and electronics, you can count on Powertex’s Group 27M Dual-Purpose Lithium Battery to deliver. What’s even better? It’s officially Mercury Marine® approved for use with select Mercury outboard models.
Why Mercury Marine® Approval Matters
Mercury Marine® recently updated its guidelines to allow lithium-ion batteries for starting engines in approved outboard models. To ensure optimal performance and safe operation, these lithium batteries must meet stringent specifications set by Mercury. With the Powertex Group 27M, you can rest assured that your battery meets all these requirements for both cranking and deep-cycle applications.
Key Specifications for Mercury Marine® Approved Lithium Batteries
To be approved for use in Mercury outboards, lithium-ion batteries like the Powertex Group 27M must meet the following specifications:
- Minimum Cranking Amps: The battery must provide at least 800 amps for 8 seconds at 20°F (-7°C), ensuring reliable engine starts even in cold conditions.
- Peak Charge Acceptance: The battery should accept 165 amps between 20–130°F (-7–55°C) to ensure efficient charging.
- Max Charge/Alternator Size: The alternator should have a maximum of 150 amps within the same temperature range to prevent overloading.
- Max Charge Voltage/Alternator Output: The battery is designed to handle a maximum charge voltage of 14.8V from the alternator.
- Reserve Capacity: The reserve capacity (RC25 @ 80°F) of the battery should be 135 minutes, ensuring that you have enough power for onboard electronics like fish finders, trolling motors, and other essential devices.
- Ingress Protection (IP) Rating: The battery must have an IP67 or higher rating, meaning it is dust-tight and waterproof. This makes the Powertex Group 27M perfect for use in harsh marine environments.
The Benefits of Powertex Group 27M for Mercury Marine® Outboards
With these specifications, the Powertex Group 27M Dual-Purpose Battery delivers all the benefits you need for both starting your engine and powering marine electronics. Whether you’re out on the water fishing, cruising, or simply enjoying the ride, this battery is engineered to keep you going longer, with:
- Longer lifespan (up to 20 times more cycle life than lead-acid batteries)
- Faster charging for minimal downtime
- Lightweight design that’s up to 40% lighter than traditional lead-acid batteries
- Built-in jump-start button for peace of mind
Upgrade Your Marine Power with Powertex
When you choose the Powertex Group 27M Dual-Purpose Lithium Battery, you're investing in a power solution that meets the highest standards for reliability and performance on the water. Ready to upgrade your boat's power system? Shop the Powertex Group 27M today and enjoy safe, reliable, and efficient power for your outboard motor and marine electronics.
