Polinovel Top-Tier Dual Purpose Battery


Polinovel dual purpose lithium battery DUAL Series is designed for starting and deep cycling. It has a robust burst of current to start outboard engines, generators, and other high-load devices. 

Plus, it serves as a house battery, providing reliable and consistent power for deep cycle electronics.


About Polinovel

Polinovel is an innovative lithium ion battery manufacturer that 

integrates research, development, design, and production. Our 

engineer team leverages deep industry expertise to develop 

battery solutions that meet customer’s needs.


In response to evolving market demands, we've integrated 

practical features into our products, including Bluetooth 

monitoring, self-heating function, seamless compatibility with 

lead-acid batteries, etc.


Polinovel consistently advances our lithium batteries to ensure 

exceptional performance and durability, enabling our customers 

to excel in their local markets.

All-In-One Battery Solution 

for Cranking & Deep Cycling

Polinovel DUAL Series is a high-performance dual purpose battery made with top-grade lithium iron phosphate cells to ensure high safety and great consistency. It delivers a burst of high current for starting, and a high continuous discharge rate for deep cycle performance.


Offered in 12V, 16V, and 24V, our DUAL Series is widely used in catamarans, sailing boats, RVs, trucks, cars, and other applications requiring robust cranking and deep cycling capabilities.

Multiple Battery Status Monitoring

Polinovel dual purpose lithium battery is equipped with a smart BMS with Bluetooth connectivity, allowing customers to monitor multiple batteries at one glance on iPolinovel app. Our app boasts a minimalist design that displays vital battery information including SOC, Status, Voltage, Current, Temperature, Cycles, and Health. This comprehensive view empowers customers with effective battery management.

Maximum Safety with Protection Mode

Polinovel develops an innovative 'Protect Battery Mode' that allows customers to remotely cut off battery discharge, with a wireless connection range of over 10 meters (32 feet). Perfect for marine use, it aligns with advice from trolling motor manufacturers to protect the motor's board by turning off batteries during charging.

Direct Troubleshooting & Calibration

Wireless software upgrade is offered for easy troubleshooting, no need to return the battery to us. And we provide ‘one-click’ current and SOC calibrations. If the current or SOC displayed in the app doesn’t match the actual values, customers can directly calibrate them without extra tools.


Enhanced Connectivity and Safety

Polinovel dual purpose lithium batteries are designed with a reset button at the top to restore Bluetooth connectivity in case of signal loss. This ensures a dependable Bluetooth connection, reducing after-sales rates and costs.


There is also an emergency switch to activate reserve power to

jump-start engines. This practical feature guarantees safety in outdoor applications, providing backup power when the battery is depleted.

IP67 Waterproof Resistance

Our batteries have passed the IP67 waterproof test, ensuring no water ingress, stable voltage, and a reliable connection to the iPolinovel app, even after 30 minutes submerged at 1 meter of water. Perfectly suited for marine environments and other outdoor scenarios exposed to wet conditions.


Superior Shock Resistance

Our batteries are perfect for use in RV trailers, camper vans, trucks, and other applications that may face rough vibrations. They have withstood 10 drops from 1.7-meter stairs, maintaining normal voltage and a stable connection to the iPolinovel app, with only minor impact marks.


Safe Parallel Connection with LEAD ACID

Polinovel has innovated our dual purpose lithium batteries with a current limiter for safe parallel connection with LEAD ACID. This advancement allows customers to build their battery systems for optimal balance across energy density, weight, performance, cost-effectiveness, etc., to precisely suit their needs.


Direct LEAD ACID Replacement

Polinovel has developed proprietary technology that allows our dual purpose lithium batteries to directly replace lead-acid batteries in boats and cars without any circuit modifications. Our batteries are stable in operation and do not cause any damage to the circuit system.


Polinovel Dual Purpose Battery Range

Polinovel offers a range of dual purpose lithium batteries to provide outstanding performance and enhanced efficiency for both engine 

starting and deep cycling applications. Whether you’re powering boats, cars, and trucks, Polinovel’s batteries provide the flexibility

and reliability you need.

Find The Right Solutions for Your Power Needs

Discover Polinovel’s range of dual purpose batteries, available in 12V, 16V, and 24V configurations to meet diverse power needs. We also offer OEM solutions for specific demands beyond our standard products.

Why Polinovel

Polinovel excels in high-end lithium battery solutions by integrating cutting-edge technology with outstanding customer support. We deliver high-performance batteries meticulously engineered for durability, supported by robust technical assistance from our skilled engineering team. Our OEM/ODM services offer customized solutions tailored to your unique requirements, while our advanced supply chain and commitment to safety standards guarantee prompt and secure delivery.

Safe and Reliable Battery Performance

Polinovel lithium batteries are designed for safety and reliability. Crafted with premium LiFePO4 cells, intelligent BMS, high-quality accessories, and cutting-edge manufacturing techniques, our batteries consistently meet the highest industry standards, supporting your business success.

Strong Technical Support

Polinovel teams of engineers engage in ongoing research into lithium batteries, driving technological advancements to develop products that align with market trends and customer needs, and provide expert technical support and guidance to ensure our customers receive prompt assistance to resolve any challenges they may face.

Reliable OEM/ODM Services

Polinovel is a top Chinese lithium battery manufacturer that offers dependable OEM/ODM services. Our dedicated team works closely with you to learn about your specific demands and develop a custom solution that effectively meets your needs.

Safe and Timely Delivery

Polinovel leverages an advanced supply chain and efficient logistics network to guarantee the prompt delivery of our lithium batteries. Each battery is carefully packaged in compliance with UN3480 regulations to ensure safe and secure delivery to your destination.

A Closer Look at Polinovel Dual Purpose Battery

Gain a comprehensive overview into the functions, advantages, production processes, and performance of the Polinovel dual 

purpose battery DUAL Series.

FAQs

  • Q: What information should I know when upgrade lead acid battery to lithium?
    A: As to get right battery for replacement, you need to know your voltage, capacity, power and size requirements. Please contact Polinovel technical support if you need assistance and we will be happy to make sure you choose the right battery.
  • Q: Can I mount the battery in horizontal or other position?
    A: Yes, you can mount your lifepo4 battery in any position, because there is no acid inside the lifepo4 battery, and the small amount of liquid electrolyte is contained and sealed within cell. This gives you more flexibility to install the battery in the place that is best suited for your application. 
  • Q: How long will it take to charge a lithium battery?
    A: LiFePO4 batteries can be charged in as fast as 1 hour, while a rate that charges in 2-5 hours is more recommended, which is good for the lifespan of lithium batteries. Please contact our sales for more detailed recommended charge rates.
  • Q: What is a BMS? What does it do and where is it located?
    A: BMS stands for Battery Management System, it works to protect the cells from getting damaged against over or under-voltage, over current, high temperature or external short-circuiting. The BMS will shut off the battery to protect the cells from unsafe operating conditions. All Polinovel batteries have a built-in BMS, which is not visible to customers most of time, to manage and protect batteries against these types of issues.
  • Q: How deep can a lithium iron phosphate battery be discharged?
    A: LiFePO4 batteries can be discharged up to 100% without risk of damage. Make sure you are charging your battery immediately after discharge. We recommend discharging the battery to 80-90% depth of discharge (DOD) to avoid the BMS disconnecting the battery.
  • Q: How does the rate of discharge effect capacity?
    A: The discharge rate of the LiFePO4 battery has no effect on the delivered capacity. This is not the case with lead-acid batteries, which capacity decreases significantly as the discharge rates increases.
  • Q: What’s the difference between series and parallel connections?
    A: Series connections involve connecting 2 or more batteries together to increase the voltage of the battery bank. Parallel connections involve connecting 2 or more batteries together to increase the capacity of the battery bank. For example, if you connect 2 x 12V 100Ah batteries in series, the battery system will be 24V 100Ah. If you connect 2 x 12V 100Ah batteries in parallel, the battery system will be 12V 200Ah. Please feel free to contact Polinovel for assistance if you have queries about the connection. 
  • Q: Why is it bad for the batteries to wire them in series and parallel at the same time?
    A: The reason may be related to the the conformity of the battery. In this connection, it is more difficult to make good conformity on different batteries, or the cells in different batteries. The voltage difference between the batteries will get large too, which in turn may lead to high impact current inside the batteries, and damage the BMS. 
  • Q: How can I determine the SOC (state of charge) of my lithium iron phosphate battery?
    A: The best way to determine the SOC of your battery is to use a battery indicator— a high-precision instrument that captures instantaneous and integrated data in real-time. Polinovel can offer lithium batteries with embedded indicator that can accurately measure the discharge currents and calculates the Ampere hours flowing in and out of the battery. 
  • Q: Why don't you use active balancing for your batteries?
    A: Active balancing is realized in the form of power transfer, which relies on expensive chips and transformers, and also requires peripheral components that are larger and more costly. It is mainly used in electric vehicle applications. Balancing plays an auxiliary, not a deciding role. The core is to guarantee the battery's conformity.
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