Custom Lithium Battery Manufacturer
Custom Lithium Battery Solutions, Engineered to Spec
From cell selection and BMS design to certification and mass production — we engineer LiPo, Li-ion, and LiFePO4 battery packs built to your exact specifications.
12+
Years Manufacturing
2,000+
Custom Battery Projects
60+
Countries Served
100%
Quality-Tested Cells
What We Build
Battery Solutions for Every Application
Three core product lines, each fully customizable to your voltage, capacity, dimensions, and certification requirements.
LiPo Battery Packs
Lightweight lithium-polymer cells in custom shapes and capacities for drones, wearables, medical, and slim consumer devices.
Explore →Li-ion 18650 / 21700 Packs
High-energy cylindrical-cell packs with smart BMS for power tools, e-mobility, robotics, and portable energy storage.
Explore →LiFePO4 Battery Packs
Long-cycle, high-safety lithium iron phosphate packs for solar storage, RVs, marine, and industrial backup power.
Explore →Best Sellers
Our Best-Selling Batteries
Proven, ready-to-ship lithium battery packs trusted by customers worldwide — browse by chemistry.
One-Stop Custom Service
From Concept to Certified Battery Pack
Tell us your requirements — we handle cell sourcing, BMS design, mechanical layout, assembly, safety testing, and global certification under one roof. One partner, full accountability, faster time to market.
Start Your Custom Battery01 · Requirements & Cell Selection
02 · BMS & Mechanical Design
03 · Sample, Assembly & Aging Test
04 · Certification & Mass Production
Why ThorBattery
Engineered for Safety, Built for Scale
Quality systems and certifications that let you ship with confidence — from first sample to high-volume production.
Certified Quality
UN38.3, CE, RoHS, IEC62133, MSDS and ISO 9001-compliant production you can audit.
Safety First
Multi-layer BMS protection, 100% cell testing, and aging verification on every pack.
Fast Lead Times
In-house tooling and streamlined production deliver samples in days and bulk in weeks.
OEM / ODM Expertise
12+ years engineering custom packs for global brands across demanding industries.
1M+
cells produced every month
Across 20+ automated assembly lines in a 150,000 m² ISO-managed manufacturing facility.
Inside Our Factory
A Manufacturing Partner You Can Rely On
Vertically integrated production — from PCB and BMS assembly to spot welding, packing, and automated testing — gives you consistent quality at any volume, batch after batch.
See Our ProcessIndustries We Power
Trusted Across Demanding Applications
Custom battery solutions engineered for the exact requirements of each sector.
Medical Devices
Reliable, certified power for diagnostics and portable medical equipment.
Consumer Electronics
Slim, lightweight packs for wearables, audio, and smart home devices.
E-Mobility
High-discharge packs for e-bikes, scooters, and light electric vehicles.
Industrial & Robotics
Rugged, high-cycle packs for AGVs, robotics, and professional power tools.
IoT & Smart Devices
Compact, long-life cells for sensors, trackers, and connected products.
Energy Storage
LiFePO4 systems for solar, backup, marine, and off-grid power.
What Clients Say
Trusted by Brands Worldwide
“Thor delivered our custom medical battery ahead of schedule and passed every certification on the first try.”
Sarah L.
Hardware Lead, MedTech
“Their BMS engineering solved a thermal issue we’d struggled with for months. True experts to work with.”
Daniel R.
Product Director, Robotics
“Consistent quality across three production runs and 40,000+ units. A partner we genuinely rely on.”
Mei T.
Procurement Manager, IoT
Ready to Power Your Next Product?
Get a free quote and a custom battery proposal within 24 hours.