How do you tell if a lithium battery factory is reliable? We've summarized the five most practical criteria.
1. Factory Capacity
Identify whether the factory is truly producing, not just a OEM.
Does the factory have its own facilities and equipment?
How many batteries can it produce per month (production capacity)?
Can they provide a video tour of the factory or provide photos?
A reliable factory ensures stable shipments and controllable quality.

2. OEM/ODM Customization
You may need your own brand, logo, battery dimensions, or specifications. A good factory must be able to support customization.
Can they offer OEM/ODM services?
Can they produce according to drawings or samples?
Have they worked on similar projects?
If you want to differentiate yourself, you must find a battery factory that offers customization.
3. Battery Quality
Lithium battery safety is crucial. A reliable factory will rigorously test each battery and obtain relevant certifications.
Does the battery have a test report?
What tests are performed before shipment?
What certificates are available? For example, CE, UN38.3, ISO, etc.
4. On-time delivery: On-time delivery is crucial for wholesalers.
What is the typical delivery time?
Can shipments be made on time?
Is communication fast if any issues arise?
A factory with stable delivery times can help you feel more confident about accepting orders.
5. How many clients do they have?
A good factory typically has many, long-term clients.
Do they export?
Which countries have they exported to?
Do they have any positive customer reviews or case studies?
The more clients they have, the more reliable they are.
Jack Power Lithium Battery Factory, a Trustworthy Partner
Jack Power is a leading manufacturer specializing in the R&D and production of lithium batteries. With 10 years of industry experience, we have served hundreds of wholesale clients and brands worldwide.
Our own factory, with proven strength.
1) 6,000 square meters of modern production workshop
2) 8 battery assembly lines
3) Monthly production capacity exceeds 500,000 units
4) Comprehensive quality management system (full-process IQC, QC, and OQC testing)
5) On-site factory inspections and video tours are supported.


OEM/ODM customization services are available.
We offer flexible customization services for global buyers:
OEM labeling: Printing of logos, packaging, and labels is possible.
ODM customization: Customization of dimensions, voltage, capacity, and connectors based on drawings or samples is possible.
We can customize various types of products, including lithium battery packs, power batteries, energy storage batteries, and electric vehicle/motorcycle batteries.
We provide one-on-one engineering and technical support, with fast proofing, responsiveness, and high efficiency.
Exporting to over 30 countries, reaching a global customer base.
Our lithium battery products are exported to over 30 countries and regions worldwide, with key markets including:
Europe and America: United States, Germany, Italy, France, Netherlands, etc.
Southeast Asia: Thailand, Vietnam, Malaysia, Philippines
Middle East & Africa: United Arab Emirates, Saudi Arabia, South Africa, Nigeria
South America & Oceania: Chile, Brazil, Australia, etc.
Multiple Certifications, Guaranteed Quality
Our products have passed numerous international certifications, meeting market access standards in various countries:
CE, UN38.3, RoHS, MSDS
ISO9001 quality management system
Supports third-party testing reports
Full factory inspection and batch sampling ensure consistent quality
Please contact Jack Power for product quotes, information, or samples!
Contact information:
Tel: +8613632197422
WhatsApp:+8613632197422
Email: info@jackpowergroup.com
Teams:+8613632197422
