Polinovel, a leading lithium battery pack manufacturer in China, provides a range of dual purpose lithium batteries for both starting and deep cycle applications. Our dual purpose batteries use top-grade LiFePO4 cells to ensure high safety, consistent performance and a long lifespan. With high starting currents and consistent power output, they are ideal for use in cars, marine boats, trucks, and many other applications that need sufficient power to start the engine and run smoothly.

Polinovel DUAL series lithium batteries use Grade-A lithium iron phosphate cells for great durability. Each battery is equipped with a state-of-the-art BMS that provides multiple protections against overcharging, over-discharging, over-current, short circuits, etc. Additionally, the BMS features Bluetooth connectivity to ensure real-time battery status monitoring.

Polinovel DUAL series lithium batteries offer both a powerful burst of current for starting, as well as a constant and stable power supply for extended use. They provide a perfect balance between starting engines and deep cycling. Ideal for use in cars, trucks, and marine applications like yachts, bass boats, sailboats, etc.

Using a smart BMS with Bluetooth communication, Polinovel DUAL series lithium batteries enable customers to monitor the battery's status and detect any issues through the free iPolinovel app on smartphones. The app is easy-to-use with a minimalist design that allows customers to view multiple batteries at a quick glance and get essential battery information like SOC, Status, Voltage, Current, Temperature, Cycles, and Health.

The iPolinovel app features a “Protect Battery Mode” that allows customers to remotely cut off battery discharge, for improved safety and performance. The wireless connection range can be more than 10 meters (32 feet) from the battery.

Wireless software upgrade is available to troubleshoot battery issue. And there are current calibration and SOC calibration to guarantee precise readings. If the displayed current or SOC deviates from the actual value, customers can easily calibrate them in the iPolinovel app without using extra tools.

Normally, when some lithium-ion batteries’ voltage fall below the BMS operating voltage, they can’t be charged, and are often discarded as ‘dead’, which is wasteful. Polinovel’s innovative RESET button can boost those dead batteries back to life. Simply press the button to bypass the BMS to enable immediate charging, and activate the batteries. Plus, the RESET button also helps restore Bluetooth connectivity if the signal is lost.

There’s also an OVERRIDE button designed on the battery's top. When the battery enters over-discharge protection and stops discharging, pressing the OVERRIDE button will deactivate the protection, allowing the battery to release the remaining power for emergency use.

Polinovel has developed lithium batteries that can safely parallel connect with LEAD ACID, providing superior performance during charging and discharging.

Our lithium batteries support parallel connections for large power needs, and have reliable performance in parallel charging and discharging.

Our batteries have undergone the IP67 waterproof test, maintaining normal voltage, zero water ingress, and a stable connection to the iPolinovel app, even after immersion in 1 meter deep water for 30 minutes.

Our batteries have demonstrated exceptional shock resistance, enduring 10 drops down 1.7 meter stairs with only minor impact marks, while maintaining normal voltage and a stable connection with the iPolinovel app. These batteries are ideal for applications that may encounter intense vibrations.

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