Yichun Zhongshengda Electronics Co.,Ltd

Do you provide installation and technical after-sales guidance?

We provide free official installation manuals, wiring diagrams and technical documents. We support remote one-on-one technical guidance, and can arrange professional engineers to provide on-site technical docking services for large project orders.

Do you support product return and exchange?

For products with quality problems within the warranty period, we support free return and exchange. For non-quality problems such as customer subjective reasons, unused and intact products can be negotiated for return and exchange, and the freight cost shall be borne by the customer.

How to handle product faults and after-sales problems?

After discovering product faults, please provide fault descriptions, photos, videos and product purchase certificates. Our professional after-sales team will respond within 24 hours, provide remote technical troubleshooting guidance, and arrange maintenance or replacement solutions according to the actual situation.

What situations are not covered by the warranty?

The warranty does not cover damage caused by man-made damage, unauthorized disassembly and modification, improper use and installation, irresistible natural disasters, and normal wear and tear of the product during use.

What is the warranty policy for energy storage batteries?

We provide a standard 3-year global warranty service. Within the warranty period, if the product has quality problems under normal use, we provide free repair or replacement service. We offer lifelong free technical guidance and after-sales consultation support.

What scenarios are your energy storage batteries suitable for?

Our products are widely used in household photovoltaic energy storage, industrial and commercial peak-shaving and valley-filling, communication base station backup power, outdoor energy storage, microgrid energy storage and other fields, meeting the energy storage needs of different scenarios.

Can the battery capacity and power be expanded?

Yes. Our modular energy storage batteries support series and parallel connection expansion. Users can freely combine and expand capacity and power according to actual power demand, which is suitable for incremental upgrading of household, industrial and commercial energy storage systems.

What are the core performance parameters of the battery?

The battery has a long cycle life of more than 6000 times, a design service life of 15 years, and maintains over 90% capacity after long-term use. It supports wide temperature operation (-20℃~60℃), has low self-discharge rate, and is equipped with intelligent BMS protection system to prevent overcharge, overdischarge, short circuit and overheating.

What core materials and battery cells are used for your energy storage batteries?

Our energy storage batteries adopt high-quality lithium iron phosphate (LiFePO4) cells, which feature high safety, stable performance, no thermal runaway risk, long service life and environmental protection. The shell is made of high-strength fireproof and anti-collision material, with excellent dustproof and waterproof performance.

Do your products support global export and have complete certification?

All energy storage batteries are equipped with complete export qualifications, including CE, UN38.3, MSDS, RoHS, IEC62133 and other international certifications, which fully meet the customs clearance and safety standards of Europe, America, Southeast Asia and other regions.

What payment terms do you accept?

We support international mainstream payment methods, including T/T bank transfer and Letter of Credit (L/C). For long-term cooperative customers, we can negotiate flexible payment terms to facilitate stable cooperation.

What is your usual production and delivery cycle?

The sample delivery cycle is 3-7 working days. For standard bulk orders, the delivery time is 15-25 working days. For large-scale customized orders, we will confirm the exact delivery date according to the product configuration and order quantity to ensure stable and punctual delivery.

What is the sample and bulk order process?

Customers can first place a sample order for performance testing and quality verification. After confirming the sample standard, we will sign a formal cooperation contract, arrange production according to the order quantity, and complete factory inspection, packaging and delivery. We support long-term exclusive agency and annual fixed-quantity supply cooperation.

Do you support customized energy storage battery products?

Yes, we provide full personalized customization services. We can customize battery capacity, voltage, size, shell color, communication protocol, BMS program and appearance logo according to customer scenarios, including household energy storage, industrial and commercial energy storage, base station backup power and other scenarios. We also support OEM and ODM batch customization.