We provide full OEM/ODM support, including:
| Battery Type | LiPo |
| Part Number | LT 303040 |
| Configuration | - |
| Certification | Customizable upon request |
| Voltage | 3.7 V |
| Capacity | 299 mAh |
| Watt Hour Rating | 1.11 Wh |
| Cycle Life | ≥500 cycles @ 80% |
| Thickness | 3 mm |
| Width | 30 mm |
| Length | 40 mm |
| Weight | about 7 g |
| Wires and Cables | Yes |
| Connector | Optional |
| Max Charge Voltage | 4.2 V |
| Charge/Discharge Current | 60mA/150mA |
| Charge Temperature | 0~45℃ |
| Discharge Temperature | -20~60℃ |
| Protection Circuit | Yes |
| Application Scenarios | Wearable Devices, Medical Devices, IoT Devices |
Powering leading brands across wearables, medical devices, IoT, and consumer electronics in 30+ countries.
Europe · Consumer Electronics
Supplied ultra-thin curved LiPo batteries (0.5mm thickness) for a flagship fitness wristband, enabling a sleek form factor while meeting 7-day battery life requirements.
North America · Medical Devices
Developed custom-shaped round lipo battery packs for portable patient monitoring devices, meeting IEC62133 and UN38.3 safety standards for medical-grade reliability.
Japan · IoT Devices
Supplied high-cycle-life Li-ion batteries for a range of wireless smart home sensors, delivering 500+ cycle performance and PSE certification for the Japanese market.
30+
Countries Served
9+
Years Experience
120K
Daily Production
300+
Team Members
State-of-the-art manufacturing facilities with advanced automation ensuring consistent quality at scale.
ISO9001 & ISO14001 certified facility implementing 5S production management with dedicated IQC, IPQC, FQC, and OQC quality control at every stage.
High-precision CNC winding equipment ensuring consistent electrode alignment and uniform cell construction for superior performance.
Automated charge-discharge formation equipment with precision capacity grading to ensure every cell meets exact specifications.
Fiber laser welding for hermetic sealing of battery cells, delivering consistent weld quality with minimal heat-affected zones.
Temperature and humidity-controlled dry rooms with automated electrolyte injection systems ensuring contamination-free production.
Fully automated outgoing quality control lines testing capacity, internal resistance, voltage, and safety performance on 100% of units.
In-house tooling and die-making capabilities for curved, ultra-thin, and irregular-shaped batteries -- our core specialty for wearables and medical devices.
Quality Certifications & Audits
From consumer electronics to mission-critical medical devices -- LithoTop batteries power innovation across industries.
Smartwatches, fitness trackers, AR/VR headsets, and hearables requiring ultra-thin or curved battery solutions.
Portable patient monitors, hearing aids, insulin pumps, and diagnostic equipment with strict safety standards.
Smart home sensors, asset trackers, industrial IoT nodes, and wireless communication modules.
RC cars, drones, aircraft, boats, and hobby vehicles demanding high-rate discharge and lightweight power solutions.
Also Serving These Industries
LithoTop specializes in custom battery solutions. Share your requirements and our engineers will design the perfect battery for your product.
Explore more battery solutions that may suit your needs.
Find answers to the most common questions about ordering, shipping, certifications, and working with LithoTop as your battery partner.
It depends on the order quantities. Usually, we can deliver goods within 3-5 working days for samples. For bulk orders, the lead time will be confirmed when you place your official order.
Many of our models are already certified, including KC, CE, RoHS, UN38.3, and IEC62133, among others. We also support obtaining new certifications when existing ones are not available -- this can be arranged upon official order placement.
Payment terms: By T/T -- 30% deposit required upfront, with the remaining balance paid in full before shipment. For smaller order amounts, we also accept payment via PayPal or credit card.
Normally, we ship our batteries via DHL, UPS, FedEx, air freight, or sea freight, depending on order size, destination, and customer preference.
We have our factory's current standard packaging available. Customized packaging with printed logos is also supported and must comply with the buyer's requirements -- please note that any extra charges for customization will be borne by the buyer. For more details, please contact us.
We are a professional battery manufacturer with our own factory and brand. We provide all kinds of OEM/ODM services for clients all around the world, ensuring full control over quality, design, and production.
Our company focuses on supplying high-quality batteries to North America, Europe, Korea, and Japan markets, with a proven track record of serving clients in 30+ countries worldwide.
Have more questions or need a custom battery solution?
Contact Our Sales TeamTell us your requirements and we'll provide a competitive quote within 1-2 business days.
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