SYNERTAC, based in Ningbo China, is a certified manufacturer and exporter of deep cycle batteries, also energy storage related products with 15 years of experience.

Who Are We?

SYNERTAC is a registered trademark of SunOn Power Co., Limited.

We are committed to deep cycle batteries, including lead batteries and lithium batteries.

Started research and manufacture of lead battery since the year 2006, lithium battery from 2015, we have exported our various types of batteries to 86 countries and won a good reputation in quality. With over 15 years of development, we now have a factory area covers 100,000 square meters, with 600 experienced employees.

Well Organized Production

With the advanced MRP system, production plans are adjusted to keep the highest productivity and efficiency. This helps us to produce in bulk, reduce the production-line switch cost.

Research & Improvement

With a research team of 15 members, improving the technology of the battery plates, AGM separators, BMS, welding material, and every other part, Synertac keeps deep cycle batteries at the top-grade quality.

Inspections & Quality

All  Synertac batteries are 100% examined before shipping, so we will get you free of customer complaints for quality issue.


Grid Casting

Grid Casting

Grid is the most important core part of lead batteries.

Curing Oven

Curing Oven

Curing is to make the battery plates solid and stable.

Plates Charging

Plates Charging

This is the chemical way to charge bulk of plates.

Plate Grid

The core part of a lead acid battery.

Plate Grid

The core part of lead acid batteries.

Deep Cycle Batteries

Deep Cycle Batteries are ready to dispatch.

More Deep Cycle Batteries!


LFP Batteries

Modular LFP Batteries are in Production.

Explore Modular LFP Battery


Trustworthy Quality Deep Cycle Battery Supplier

Committed to provide quality deep cycle batteries that meet all your needs.


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