Custom Battery
Custom lithium battery packs from concept to mass production for medical, industrial and portable devices.
Start a project
Share the core battery parameters and TEFOO engineers can evaluate a standard platform or custom PACK direction.
Design engineering services
For OEM products, the battery pack has to fit the device, pass compliance work, communicate clearly and remain manufacturable. These service modules make that work explicit.
Mechanical service
We support enclosure fit, mounting structure, cable routing, connector layout and battery pack manufacturability.
Schedule a mechanical review
Electrical service
Electrical engineers evaluate current profile, protection limits, charging behavior and communication requirements before sample build.
Discuss electrical design
Smart service
Smart boards can report SOC, SOH, voltage, current, cycle data, alerts and protection events to the host device.
Speak with a BMS engineer
Cell service
Cell chemistry and brand are selected against runtime, peak load, lifecycle, size, budget and long-term supply requirements.
Review cell options
UN service
Battery transport planning helps determine which certifications and reports are needed before international shipment.
Plan certification testing
Applications
Custom battery projects are most useful when the device has strict size, runtime, communication, safety or long-term supply requirements.
01
Field analyzers, measurement devices, inspection tools and portable test equipment.
02
Portable monitors, infusion pumps, ultrasound systems, respiratory devices and diagnostic equipment.
03
Mobile robots, service robots and AGV platforms that require smart charging and stable runtime.
Customization options
Use this section as the checklist for quoting: electrical target, mechanical constraints, communication, certification and production planning.
Development process
A clear process helps engineering, purchasing and quality teams align before samples and mass production.
01
Confirm voltage, capacity, dimension limits, current profile, certification market and application environment.
02
Evaluate cell configuration, BMS architecture, mechanical structure, charger matching and production feasibility.
03
Develop BMS hardware, firmware, PCB layout, pack structure, wiring, label and sample production documents.
04
Build prototypes, run electrical and safety checks, collect customer feedback and revise before pilot production.
05
Move through pilot build, incoming material control, process inspection, aging tests and batch delivery.
Testing & compliance
TEFOO can support transport, safety, environmental and market-access documentation according to the battery design and target sales region.
Project experience
Engineering decisions made during battery design affect tooling, certification, delivery and field reliability. TEFOO keeps those details visible before samples are built.
Years battery pack experience
Battery patents and software copyrights
OEM/ODM battery projects supported
Battery solutions
Explore standard and custom battery solutions, chargers and power accessories for your device requirements.
Battery packs engineered around your device, enclosure, connector and runtime requirements.
Validated battery platforms for reliable integration and faster project delivery.
Charging solutions matched to battery chemistry, operating conditions and safety needs.
Reliable adapters and power accessories for complete equipment power systems.
FAQ
These are the questions buyers usually confirm before sending drawings or opening a custom battery project.
Please provide voltage, capacity, maximum size, continuous and peak discharge current, application, certification market and estimated annual volume.
Yes. TEFOO can develop SMBus smart battery packs with fuel gauge data, protection logic, SOC indication and host-device communication.
A common custom battery sample usually takes about 25-30 business days after requirements and design direction are confirmed.
With more than 12 years of experience providing custom battery pack solutions, we’ve perfected the design and production of high-quality batteries that suit our customers’ needs. To ensure we’re providing the best products for our clients, we utilize the ISO 9001:2015 quality management system, the latest version of the international standard that specifies requirements for a quality management system. Our production system is efficient, and TEFOO’s talented and devoted staff are invested not only in our customers but in one another.
Yes. Certification support can include transport, safety, environmental and market-access documents depending on the project scope.