Dual Purpose Marine Battery

Designed for versatility and endurance, Redodo's dual purpose marine batteries deliver high cranking amps to start your engine, while providing steady, long-lasting energy to power your electronics, lights, and trolling motors.

Built with advanced LiFePO4 technology, our lithium dual purpose marine battery is lightweight, compact, maintenance-free, and delivers a 3× longer lifespan compared to traditional lead-acid options.

Redodo's dual purpose batteries for boat are available in standard Group 27 and Group 31 sizes, offering a seamless drop-in replacement for your old batteries. With built-in BMS protections, Bluetooth monitoring, low-temp cutoff protection, and resistance to moisture and salt spray, they can perform reliably in demanding marine adventures.

Whether you're heading out for a day of fishing or powering offshore adventures, these batteries are made to keep up without compromising reliability or safety.

Find the best dual purpose marine battery from Redodo and simplify your power system—one battery, two essential jobs, zero compromises.

Filters

Voltage
Energy
Amp Hours
Trolling Motor
Size
Functions
Applications
Redodo Dual Purpose Marine Battery with 1000 CCA cranking

Redodo 12V 140Ah Dual Purpose Marine Battery, 1000 CCA

$499.99 $729.99

FAQs

Q: What is a dual purpose marine battery?

A dual purpose marine battery combines the functions of both a starting battery and a deep cycle battery. It delivers high cranking amps to start your boat engine and also provides steady deep cycle power for running onboard electronics, lights, and trolling motors.

Q: What's the difference between a deep cycle and a dual purpose battery?

A deep cycle marine battery is designed to provide a steady amount of power over a long period and can be deeply discharged and recharged many times. They're perfect for running electronics like trolling motors, lights, and appliances on boats.

A dual purpose marine battery, on the other hand, combines starting power with deep cycling capabilities. It’s a versatile option for smaller boats or setups that don’t have space for two separate batteries.

Q: When should I use a dual purpose battery for my boat?

A dual purpose boat battery is ideal if you want to simplify your battery setup and save space. It’s perfect for small to medium boat owners who need both starting and house batteries but want to save boat space and overall costs.

Q: Can a dual purpose lithium marine battery replace a lead-acid battery?

Yes. Redodo’s lithium dual purpose batteries are designed in standard Group 27/31 sizes, making them a seamless replacement for lead-acid batteries, with added benefits like longer lifespan, faster charging, and lighter weight.

Q: How long does Redodo dual purpose lithium battery last?

Redodo lithium dual purpose marine batteries offer over 4000 cycles at 100% depth of discharge (DOD) for deep-cycle use, significantly outperforming traditional batteries. For starting use, these batteries can offer 5000+ cranking cycles. With proper use, they can last up to 10 years.

Q: Can I use a marine dual purpose battery for trolling motors?

Yes, dual purpose batteries can power trolling motors effectively, especially when lithium-based. However, if you use your trolling motor heavily, a dedicated deep cycle lithium trolling motor battery is better.

Q: Does Redodo’s dual purpose marine batteries support Bluetooth monitoring?

Absolutely. Select Redodo models include Bluetooth 5.0 monitoring, allowing you to check battery status, voltage, cycles, and more in real time via the Redodo App. The Bluetooth also supports remotely manage discharge and power-off.

Q: What is the IP rating of the Redodo dual purpose lithium battery?

Redodo’s dual purpose lithium batteries are rated IP67, offering superior protection against dust and water immersion compared to typical marine batteries with IP65 ratings. This higher level of protection makes them exceptionally well-suited for harsh marine environments.