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Have you ever been in this situation:
You just can’t find a battery that fits perfectly?
- Maybe the model you used before is discontinued.
- Maybe your product has a special design, and standard batteries won’t fit at all.
- Or the internal space is extremely tight—even an extra 0.5 mm is too much.
To be honest, these problems are very common in the projects we work on.
There seem to be many batteries on the market, but when you need irregular sizes, special structures, or specific performance, most suppliers can only give you one answer:
“We don’t have one ready-made.”
The result is usually:
You either have to change your design, choose another solution, or even give up performance and your original idea.
This is exactly why LanDazzle exists.
We don’t just sell batteries. We help you solve the battery problem for good.
Some Irregular Size Batteries
LanDazzle Irregular Shaped Battery: Engineered to Your Specs
In our opinion, batteries should not limit your design.
What we do is simple:
We make the battery fit your product — not the other way around.
How do we do it?
1. True custom shape from scratch
We don’t just make small changes to standard batteries.
If you provide your device’s 3D model or clear space dimensions, we can redesign the battery from the structural design stage. We have made curved, L‑shape, polygonal, and ultra‑thin pouch batteries.
What this means for you:
Maximum space usage, more design freedom, and no more compromises over “just a little extra space.”
2. Performance tailored to your application, not a template
Different products have completely different battery needs.
Medical devices, wearables, robots, and high‑power toys all use power differently.
We match your real usage scene with:
- Suitable voltage
- Practical capacity (mAh)
- Discharge rate (C‑rate) that fits your load
Our only goal: stable and reliable performance in real use, not just impressive numbers on paper.
3. Custom connectors and wiring, too
Many projects get stuck at the final step: how to connect the battery.
We solve this for you, including:
- Custom wire length
- Standard or special connectors (JST, Molex, etc.)
- Solder tabs
- Even integrated smart communication interfaces like SMBus / I²C
The result:
You get a battery you can install directly, not a “semi-finished product” that needs extra engineering work.
4. Safety and management are part of the design
For all custom Li‑Po or Li‑Ion projects, we design a matching protection system.
This includes:
- Overcharge / over‑discharge protection
- Temperature monitoring
- Short circuit and abnormal current protection
The protection circuit is not a generic board —we set the parameters based on your application.
All cells come from mature systems that meet international safety standards.
5. Rechargeable, durable, for long‑term use
We focus on rechargeable custom batteries.
In material selection and charging design, our goals are clear: stable cycle life and lower long‑term cost.hm are perfectly matched for long-term durability.
Case Studies: Proven Custom Battery Solutions
Real success stories speak louder than promises. Below are four projects that show how LanDazzle turns challenging ideas into reliable, custom power solutions.
Case 1: Ultra-Thin Battery for Next-Gen Smart Cards
- Client / Industry
A global smart-card manufacturer developing a new generation of sensor-enabled ID cards. - Challenge
- Total thickness had to stay under 1 mm to meet international card standards.
- Required a stable 3.7 V output and long cycle life in a paper-thin profile.
- The battery needed enough mechanical strength to survive bending and lamination.
- Our Solution
- Engineered a high-energy-density LiPo cell using advanced cathode and silicon-carbon anode materials.
- Adopted a stacked-layer architecture instead of traditional winding to minimize thickness.
- Selected a premium aluminum-polymer pouch for durability and low internal resistance.
- Result
Delivered a 1 mm-thick, 155 mAh battery weighing only 3.6 g, maintaining performance after 500+ cycles.
The client launched the card without redesigning its electronics, saving months of development time.
Case 2: Curved LiPo Battery for Smart Rings
- Client / Industry
A wearable-tech startup creating a health-tracking smart ring. - Challenge
- Internal space was so tight that every fraction of a millimeter counted.
- The cell needed to follow the ring’s inner curve for a seamless fit.
- Safety was critical for continuous skin contact.
- Our Solution
- Used 3D scanning and modeling to design a curved LiPo cell that matched the ring’s geometry.
- Maintained thickness at about 1.7 mm while integrating a miniature protection circuit.
- Employed ultra-thin aluminum-polymer film for flexibility and stability.
- Result
Produced a 22 mm x 1.8 mm, 17 mAh custom battery weighing just 0.5 g, operating safely from −20 °C to 60 °C.
The client achieved full-day power in a sleek design without altering the ring’s form factor.
Case 3: Round Battery Maximizes Smartwatch Space
- Client / Industry
A leading smartwatch brand seeking longer runtime without changing its core layout. - Challenge
- Standard prismatic cells wasted valuable internal space in the watch’s circular housing.
- Needed higher capacity while preserving the slim profile.
- Our Solution
- Developed a custom round LiPo battery to perfectly match the watch’s curved interior.
- Optimized electrode layering and pouch sealing to boost energy density.
- Result
The watch gained significant capacity increases and extended battery life without redesigning the PCB or case, reducing costs and speeding time-to-market.
Case 4: High-Capacity Pack for Early-Education Robots
- Client / Industry
A robotics company building interactive learning robots for children. - Challenge
- Limited battery bay but high power requirements for motors, sensors, and AI processing.
- Needed longer operating time between charges to keep kids engaged.
- Our Solution
- Designed an Irregular shaped polymer Li-ion battery with integrated protection circuitry.
- Increased capacity by over 20 % while fitting perfectly into the tight corner of the housing.
- Result
Robots now run noticeably longer on a single charge, improving user experience and reducing maintenance for schools.
Custom Shaped Batteries FAQs
Q1: What information do I need to provide to get started?
The more details, the better — you don’t have to be an expert.
Ideally, please provide:
- 3D file or dimensions of the battery space
- Required voltage, capacity, and discharge current
- Photo or model of the connector
- Description of your application
If you don’t have all these right now, that’s completely fine.
Q2: What is your typical Minimum Order Quantity (MOQ) for custom batteries?
We pride ourselves on flexibility. While cost-efficiency improves with volume, we cater to a wide range of needs, from prototype samples to mass production. Contact us with your details, and we will find a solution that fits your scale.
Q3: How long does the entire custom battery development process take?
Typical timeline:
- Proposal & quotation: 1–3 working days
- Sample development: 4–6 weeks
- Mass production: 3–5 weeks after sample approval
Complex projects will be evaluated separately, and we will give you a clear schedule in advance.
Q4: Can you help if I don’t have all the technical specifications, just a device and a problem?
Absolutely. Many projects start with the problem: “The existing battery doesn’t fit.” We can reverse‑engineer a suitable solution based on your old battery or device structure.
Q5: Are your custom batteries rechargeable?
The vast majority are. We specialize in rechargeable Lithium Polymer (Li-Po) and Lithium-Ion (Li-Ion) custom batteries, as they offer the best value and flexibility for unique shapes. If your application strictly requires a non-rechargeable (primary) chemistry, we can explore that as well.
Q6: What certifications and test reports can you provide?
As a professional battery manufacturer, we prioritize safety and compliance. The specific certificates depend on your project requirements and target market. We routinely provide:
- Standard Certifications: We hold ISO 9001 Quality Management System certification, ensuring consistent and reliable production processes.
- Cell-Level Certifications: We source cells that come with UL, IEC 62133, or UN38.3 certifications, which are fundamental for safety and transportation.
- Market-Specific Certifications: For high-volume projects, we can guide you and support the application for end-product certifications like CE, FCC, or KC.
Contact Us to Get a Free Consulation
Stop compromising with ill-fitting batteries. Our engineering team is ready to collaborate with you to design a precise, safe, and high-performance power solution.
Contact us today to get a free consulation.
Email: info@landazzle.com
Whatsapp: +8618938252128
