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QMS Smart battery Global Compliance Support

Smart Lithium Battery Packs for Medical and Industrial OEM Devices

TEFOO provides certified standard smart batteries and custom-engineered power systems for medical devices, industrial instruments and professional portable equipment. From battery and charger integration to compliance documentation and lifecycle support, we help OEM teams bring dependable products to market with less risk.

Choose a battery partner built for long product lifecycles.

No NRE for standard products

Certified Quality

Long-term supply planning

In-house BMS hardware and firmware

ISO 13485-certified quality management system

Standard models available from one unit

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About TEFOO

Smart lithium battery pack manufacturer

Founded in 2012, TEFOO focuses on medical-grade smart lithium battery packs, industrial portable device power systems and SMBus smart BMS battery solutions. We provide one-stop battery power development, customization and mass production services for global medical device, precision instrument and portable industrial equipment manufacturers.

With in-house BMS hardware and firmware development, reliability testing, automated PACK production and medical-grade quality control, TEFOO supports OEM/ODM projects from sample development to long-term stable delivery.

2012

Founded in Shenzhen

ISO13485

ISO 13485-certified quality management system

45+

Battery-related patents

17

Software copyrights

R&D (electronics + structure + software and hardware)

in-house production

quality management

certification compliance

Product center

Core battery systems for reliable device integration

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Featured platform

Standard Smart Lithium Battery Packs

3.6V, 7.2V, 10.8V, 14.4V, based on the permutation and combination from 1S1P to 4S2P, the battery pack is below 100Wh, facilitating global transportation and portability.

SMBus

Fuel Gauge

LED SOC

Certified

OEM/ODM

Custom Battery Packs

BMS, enclosure, connector, charger and certification support.

Medical

Medical Battery Solutions

Batteries for portable medical devices produced under a quality management system certified according to ISO 13485.

Charging

Chargers & Adapters

Smart battery chargers and power management modules.

Integration

Connectors & Accessories

SMBus readers, cables and mating connector options.

Certifications

Certifications

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BSMI

BSMI

CB

CB

CCC

CCC

FCC

FCC

High-tech-Enterprise-Certificate

High-tech-Enterprise-Certificate

ISO13485

ISO13485

ISO14001

ISO14001

ISO45001

ISO45001

ISO9001

ISO9001

KC

KC

MSDS

MSDS

PSE

PSE

SFUI-SMEs

SFUI-SMEs

Transportation-Certificates-China-AIR

Transportation-Certificates-China-AIR

Transportation-Certificates-China-SEA

Transportation-Certificates-China-SEA

UKCA

UKCA

UL

UL

View certificates
TEFOO standard battery packs

Standard battery advantages

Why use standard lithium battery packs

Start from a certified smart battery platform to reduce development time, compliance risk and long-term supply uncertainty.

01

Certified Quality

Necessary certificates for worldwide market access.

02

15-Year Supply

Reliable long-term supply planning for OEM programs.

03

Faster Time to Market

No development cycle required for proven standard models.

04

No NRE

Available without additional development fees.

05

Flexible Quantities

Adaptable order sizes without strict MOQ restrictions.

06

High Quality Standards

Manufactured for durability and stable performance.

07

High Level of Safety

Multi-level protection for users and equipment.

08

Ready to Use

Plug-and-play battery design for immediate integration.

Explore standard models

Featured products

Standard smart battery packs

Compare all models

Engineering capability

From BMS software to battery-pack manufacturing

TEFOO integrates cell selection, SMBus BMS hardware and firmware, mechanical tooling, reliability testing and automated PACK production in Shenzhen.

  • SMBus communication and high precision fuel gauge
  • JEITA charging optimization and cell balancing
  • High-low temperature, vibration, drop and cycle tests
  • Flexible samples, pilot build and mass production

News center

Industry news & company updates

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Industry News

More insights

Medical battery compliance

Medical Battery

What medical device teams should verify before selecting a smart battery pack

Key checkpoints include traceability, safety protection, certification documents and long-term supply.

SMBus battery integration

Smart BMS

Why SMBus communication matters for portable industrial equipment

SMBus data helps devices monitor SOC, battery health, charging status and protection events.

Standard battery packs

Standard Platform

Standard battery packs can shorten OEM project development cycles

Certified off-the-shelf platforms reduce NRE, sample time and integration risk.

Company News

More updates

ISO 13485 quality certificate

Quality System

TEFOO supports medical battery projects with ISO13485 quality management

Medical-grade quality control supports design, production and project documentation.

Standard smart battery lineup

Product Lineup

Standard smart battery series covers 3.6V, 7.2V, 10.8V and 14.4V models

Multiple voltage platforms are available for portable medical and industrial devices.

OEM ODM battery service

OEM / ODM

TEFOO provides one-stop custom battery development and PACK manufacturing

From BMS design to pilot build and mass production, engineering support is available.

Industry News

More insights

Medical Diagnostic Device Battery Pack

Industry News

Medical Diagnostic Device Battery Pack / Medical Instrument Battery

By a Lithium Battery Engineer, Medical Device Programs  |  TEFOO For a patient monitor in an intensive care unit, a pulse oximeter on a ward, a point-of-care ultrasound in an emergency room, or an infusion pump moving between beds, the battery is not an accessory—it is part of the measurement chain. I lead battery engineering […]


Surgical Light Backup Battery

Operating Light Battery Pack

Surgical Light Backup Battery / Operating Light Battery Pack

An R&D Engineer’s Guide to Design, Safety and Compliance Why the Surgical Light Deserves a Battery It Can Trust In my years of designing lithium battery packs for medical devices, one question comes back more often than any other: “What happens to the operating light when the mains fails mid-procedure?” It is a fair question, […]


Handheld Ultrasound

Industry News

SMBus Smart Battery for Handheld Ultrasound Systems: An Engineering Guide to SBS Compliance, Medical-Grade Safety, and OEM Integration

Handheld ultrasound has moved from a backup imaging tool to a primary point-of-care modality in emergency medicine, obstetrics, anesthesia, and veterinary practice. As the form factor shrinks from cart-based consoles to palm-sized smart probes, the power source can no longer be a “good enough” lithium pack with a voltage tap. It must be a smart […]

Company News

More updates

China International Medical Equipment Fair CMEF 2023

Company News

China International Medical Equipment Fair CMEF 2023

The CMEF is one of the leading platforms for the medical industry in the Asia Pacific region. The trade fair serves the entire value chain in the medical market, from product innovations to procurement and trading.

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FAQ

Battery project questions, answered

Quick answers for Standard Smart Lithium Battery Packs, customized PACK projects, certifications, samples, shipping and technical support.

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Standard Battery Pack

How are lithium-ion battery packs managed to optimize performance and longevity?

Battery management systems within the packs monitor individual cell parameters, ensuring balanced charging and discharging to maximize performance and lifespan.

How does it differ from individual lithium-ion cells?

A lithium-ion battery pack combines multiple cells to offer higher voltage and capacity than individual cells, suitable for high-power applications.

What certifications should lithium batteries have?

Common certifications include UN38.3 and MSDS for transportation, IEC 62133 for safety, and RoHS for environmental compliance.

custom battery pack

Why should I choose/trust TEFOO battery?

With more than 12 years of experience providing custom battery pack solutions, we design and produce high-quality batteries that suit customers’ needs. Our ISO 9001:2015 quality management system supports reliable, efficient production and long-term partnership.

Is TEFOO a manufacturer or trader?

We are a one-stop shop for custom and standard battery pack manufacturing, serving industrial and medical applications.

How long does it take to make a sample of a custom battery?

For a standard custom battery pack, development, production and delivery typically take 25 to 30 business days.

What information do I need to provide?

Please provide required capacity, size, voltage, discharge current, annual volume, application, delivery address and certification requirements.

What brand of cells does TEFOO use in its battery packs?

We use Panasonic cells in standard products and Panasonic, Samsung, LG and other established brands for custom projects.

What is the TEFOO customization process like?

Our process covers requirements review, solution and pricing, sample production, testing feedback and bulk production.

Do TEFOO batteries have UN38.3 certification?

Custom batteries may require project-specific testing. We can help customers through the UN38.3 certification process.

Battery Certification

Can your lithium batteries meet specific country or region certification requirements?

Yes. Our certification support covers KC, PSE, BIS, CB, CE, RoHS, 3C, FCC, UL, UKCA and CQC according to project needs.

What quality system do you have?

We have obtained ISO9001, ISO14001, ISO13485 and ISO45001 quality management certifications.

How many independent patent certificates do you have?

We have more than 46 independent patent certificates covering battery manufacturing technologies.

Sample & Payment

Can I get samples of lithium batteries before placing a bulk order?

Yes, samples can be provided for testing and evaluation. Sample fees and freight charges may apply.

What is the minimum order quantity for lithium batteries?

There is no strict MOQ requirement.

Shipping & After-sales

What’s the manufacturing lead time at TEFOO Battery?

Mass production usually takes 15 to 30 days. In-stock models can be available in 2 to 7 days.

What is the delivery time after placing an order?

Air transportation normally takes 10 to 12 days, while sea transportation takes more than 45 days.

Can you provide lithium battery technical support?

Yes. We provide technical support, battery specifications and solution recommendations according to project requirements.