Thin Lithium Polymer Battery
Custom thin and flat LiPo battery solutions for compact electronic devices, wearables, GPS trackers, IoT sensors, handheld products, healthcare devices and OEM applications.
ZERNE Thin Lithium Polymer Battery for Slim Product Design
ZERNE Li-Po Battery Options for Thin and Flat Applications
| Model | Voltage (V) | Capacity (mAh) | Size | Recommended Use | ||||
| Thickness (mm) | Width (mm) | Length (mm) | ||||||
| 321447 | 3.7V | 180mAh | 3.2mm | 14mm | 47mm | Slim wearables, compact sensors | ||
| 451220 | 3.7V | 70mAh | 4.5mm | 12mm | 20mm | Mini wearable electronics | ||
| 502030 | 3.7V | 250mAh | 5.0mm | 20mm | 30mm | Small smart devices | ||
| 602058 | 3.7V | 750mAh | 6.0mm | 20mm | 58mm | Smart devices, wireless modules | ||
| 522262 | 3.7V | 850mAh | 5.2mm | 22mm | 62mm | Thin portable electronics | ||
| 4022102 | 3.7V | 900mAh | 4.0mm | 22mm | 102mm | Long and slim device structures | ||
| 4025130 | 3.7V | 1500mAh | 4.0mm | 25mm | 130mm | Slim higher-runtime devices | ||
Performance Features of ZERNE Thin Li-Po Batteries
ZERNE thin lithium polymer batteries are selected for compact size, flexible integration, rechargeable power and protection design options.
Thin Flat Structure
ZERNE Li-Po batteries support slim and lightweight product designs. The flat pouch structure helps make better use of limited battery compartments in compact devices, especially when the product housing cannot be enlarged or redesigned.
Flexible Size Match
Battery thickness, width, length, capacity, voltage and shape can be customized according to OEM product structures. This helps device engineers improve internal space utilization while keeping the product light and easy to assemble.
Stable Standby Use
Lithium polymer batteries are suitable for portable devices that need rechargeable power and standby performance. ZERNE can help match the battery according to device runtime, working current, standby current and application conditions.
Protection Options
ZERNE supports PCM, BMS, NTC, smart battery options, custom wiring and connector solutions. These configurations help match the battery with charging, discharging, temperature sensing and device assembly requirements.
Applications of ZERNE Thin Lithium Polymer Batteries
Wearable Electronics
GPS Tracking Devices
GPS trackers often need compact batteries for positioning, standby and data transmission while staying small enough for vehicle, asset, pet or personal tracking use. A thin or flat lithium polymer battery can help improve internal space utilization inside the tracker housing. ZERNE can match battery size, capacity, connector and protection configuration according to tracker structure and operating requirements.
IoT Sensors and Modules
IoT sensors and wireless modules are often installed in small enclosures where battery height, cable route and connector position directly affect product assembly. ZERNE flat lithium polymer batteries can support compact IoT products by matching thickness, width, length, capacity, wire length and connector type according to the device’s internal layout and expected standby performance.
Handheld Electronics
Handheld devices such as POS terminals, barcode scanners, game controllers and compact tools need batteries that support mobile operation without making the product too bulky. Thin lithium polymer batteries help designers balance grip comfort, internal component layout and runtime. ZERNE can provide standard model selection or custom LiPo battery development for different handheld product structures.
Healthcare Products
Healthcare and beauty devices often require a clean external shape, lightweight handling and stable rechargeable power. Thin LiPo batteries can be used in beauty devices, massage products, breast pumps and similar compact products. ZERNE can customize battery size, capacity, connector and protection options according to the device housing, charging method and daily use requirements.
Medical Equipment
Portable medical electronics may need compact batteries that support stable standby, safe integration and reliable product assembly. For devices such as blood glucose monitors and small medical equipment, ZERNE can help evaluate thin lithium polymer battery options based on available space, expected runtime, working current, connector requirement, NTC needs and protection configuration.
How We Match a Thin Lithium Polymer Battery to Your Device?
A suitable thin Li-Po battery should match both mechanical structure and electrical requirements.
Confirm Battery Space
Review Power Demand
Check Assembly Details
Connector type, cable length, wire outlet direction, PCM/BMS position and NTC requirement should be confirmed before sampling. These details are especially important for thin and flat battery projects because compact devices usually have very little extra internal space.
What to Send for a Custom Thin LiPo Battery Quote?
Please share your device structure and battery requirements. ZERNE will review your size, capacity, voltage, connector and protection needs, then recommend a suitable standard model or custom lithium polymer battery solution.
Custom Thin Lithium Polymer Battery Process
Requirement Review
We review your product type, available battery space, voltage, capacity target, discharge demand, connector requirement and application conditions to confirm the battery matching direction.
Battery Proposal
Based on your project information, we recommend a suitable standard Li-Po battery model or evaluate a custom thin lithium polymer battery design.
Sample Testing
Samples can be used to verify size fit, connector position, electrical performance, protection configuration and assembly compatibility before mass production.
Production Delivery
After sample confirmation, the battery specification, connector, cable length and protection system can be finalized for production and shipment according to project requirements.
Quality Support for ZERNE Thin LiPo Batteries
Material Control
Incoming material control helps maintain production consistency before battery manufacturing begins. For compact Li-Po batteries, stable materials and process preparation are important because cell thickness, pouch structure and internal design must match the required battery space.
Process Monitoring
ZERNE applies production monitoring during lithium battery manufacturing. For thin pouch-style batteries, dimensional control, process consistency and protection configuration should be checked carefully to support stable integration into compact electronic products.
Shipment Inspection
Before shipment, battery model, size, capacity, connector, cable length and protection configuration should be confirmed according to the agreed specification. This helps customers receive battery products that match their project requirements.
Why Choose ZERNE for Thin Lithium Polymer Batteries
ZERNE combines long-term lithium battery manufacturing experience, R&D capability, custom project support and quality management to serve global battery applications.
Long-Term Manufacturing
ZERNE was founded in 1998 and focuses on lithium battery R&D, design, manufacturing and sales. This supports stable supply and communication for OEM projects.
Product Range Match
ZERNE provides lithium polymer batteries in different capacity ranges, from compact cells to higher-runtime models. Customers can choose standard or custom solutions.
Custom Project Support
ZERNE supports custom Li-Po battery projects based on size, capacity, voltage, PCB/BMS, connector and application needs. This helps match batteries to device structures.
Quality Control System
ZERNE uses full-process quality control from production to shipment. Monitoring and inspection help maintain consistent battery quality.
Contact Us
Looking for a thin lithium polymer battery or a flat Li-Po battery for your compact product? Send your project details and ZERNE will help match the right battery size, capacity, connector and protection solution.
FAQs
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1S, 2S, 3S and 4S describe the number of LiPo cells connected in series within a battery pack. Using common 3.7 V nominal LiPo cells, a 1S pack is approximately 3.7 V, a 2S pack is 7.4 V, a 3S pack is 11.1 V and a 4S pack is 14.8 V. Their corresponding full-charge voltages are typically 4.2 V, 8.4 V, 12.6 V and 16.8 V. This guide explains how S-ratings affect voltage, charging, BMS requirements, capacity and OEM device compatibility. It also clarifies why a higher S-rating is not automatically better and how to select the appropriate LiPo configuration for a rechargeable product. -
Battery pack testing verifies whether a finished lithium-ion battery pack meets its electrical, mechanical and safety requirements. An OEM test plan should cover rated capacity, charge and discharge performance, voltage stability, peak current, cycle life, protection functions, temperature rise, connector integrity, insulation, dimensions and appearance. This battery pack testing checklist explains how to organize these tests, define test conditions, record results and decide whether a sample is ready for further production validation. -
Series and parallel battery pack configurations affect different aspects of battery performance. Connecting cells in series increases voltage, while connecting cells in parallel increases amp-hour capacity and current capability. OEM battery packs often combine both structures to achieve a target voltage and capacity within the available space. This guide explains the differences between series, parallel and series-parallel battery packs, with practical examples using 3.7 V lithium cells. It also covers cell matching, BMS requirements, charging, current demand, mechanical constraints and how to select a configuration for an OEM device. The objective is to help engineering and procurement teams choose a battery structure that fits the device’s electrical, mechanical and production requirements. -
Lithium battery pack runtime depends on usable battery energy and the device’s actual power demand. The basic calculation is battery watt-hours divided by average load watts, adjusted for conversion efficiency, cutoff voltage, temperature, aging and operating conditions. This guide explains how to calculate runtime from voltage and capacity, when to use a current-based calculation, how to handle variable loads and why the result is an estimate rather than a guaranteed operating time. It also provides practical examples for 3.7 V and 7.4 V battery packs and explains how peak current, BMS protection and system efficiency can affect real-world performance. The information is intended for OEM engineers and buyers planning rechargeable lithium battery solutions.
Keep in touch with ZERNE
Tell us what your device needs, and ZERNE will help you find a suitable thin lithium polymer battery solution.
You can share your battery size, capacity, voltage, connector type, cable length and application details through the form. Our team will review your requirements and help match a standard Li-Po battery model or discuss a custom battery option for your project.
Mob：+86-13724662111
E-mail：info@zn-battery.com
