A Founded in 1998, ZERNE brings 28 years of specialized experience in lithium battery manufacturing—delivering reliability trusted by European equipment manufacturers. Our core strengths include: an in-house R&D team dedicated to custom solutions (tailored for GPS, medical devices, and smart wearables), a responsive after-sales support France support team available for technical assistance and warranty claims, premium-grade battery materials ensuring high energy density and long cycle life, and strict quality control systems compliant with CE, RoHS, and IEC 62133 standards. We combine decades of expertise with innovation to provide stable, safe, and customized power solutions that align with your business needs.

A We offer a 1-year quality warranty for all our polymer lithium batteries. Should any quality-related issues arise within this period, you can contact us at any time, we will provide the solution as soon as possible.We also have sales team base in France , we can book the meeting very easily.

A Yes, you can. We provide technical support like battery specifications based on what you need
We also have sales team base in France , we can book the meeting very easily.

A Yes, our polymer lithium batteries are widely adopted across multiple industries, and we have established a deep strategic partnership with a top 10 global GPS solutions provider. For more detailed customer success stories and application scenarios, please visit the Case Studies page on our official website.

A Polymer lithium batteries deliver value across diverse European industries, with standout use cases in:
• GPS tracking (logistics, fleet management,Animal , Wildlife, bike computer
 and asset security solutions)
• Medical equipment (portable health devices, wearable monitors, and home care tools)
• Smart wearables (fitness trackers, smartwatches, and wireless audio devices)
• IoT & industrial devices (wireless sensors, handheld field tools)
Their slim profile, high energy density, and reliable performance make them the go-to power source for innovation-driven businesses in these sectors.

A Our lithium batteries are certified to global standards including CE, UL, ROHS, REACH, KC, PSE, IEC62133, CB, IEEE, and CCC, ensuring compliance with international safety and quality requirements.

A We hold ISO9001, ISO14001,BSCI and ISO45001 certifications, which underpin our strict quality control measures and adherence to international production standards.

A The lead time for custom battery samples is approximately 12-15 days.

A Yes, samples are available for testing and assessment from most suppliers. Also we can provide the trail order 500-2000 pcs . Keep in mind that there will be applicable costs, including sample fees and freight.

A Use compatible chargers, avoid extreme temperatures (-10°C to 45°C), maintain a 20%-80% charge level, and use the battery regularly to prevent long-term dormancy.