0.93Wh Calculated Energy in a Thin Profile
This 3.7 V lithium polymer battery provides a starting point for runtime planning in compact sensors, wearables and other low-power electronic products.
3.7 V Curved Lithium Polymer Battery
3.7 V 250mAh Lithium Polymer Battery 402535
The 402535 lipo battery combines 3.7 V nominal voltage, 250mAh capacity, a 4.0 mm × 25 mm × 35 mm pouch envelope, a 1C charging rate and 80mΩ internal resistance. Its 4.0 mm profile and wider short-format footprint provide approximately 0.93Wh of calculated energy for curved or space-constrained electronics that need a thin battery reference.
40253525 × 35 mm4.0 mm profile
250mAh LiPo402535 reference format
402535 Curved LiPo BatteryNeutral reference visual for thin curved-device battery format
3.7 V · 0.93 WhProduct snapshot
A 250mAh Ultra-Thin LiPo Format for Compact Curved Devices
The 402535 LiPo battery combines 250mAh capacity with a 4.0 mm × 25 mm × 35 mm pouch envelope. Its low listed thickness and wider short footprint provide a different packaging path from narrow cells when enclosure depth is the primary constraint. See the curved lithium polymer battery range when comparing nearby formats.
25 mm × 35 mm Area with Only 4.0 mm Thickness
The listed dimensions help engineering teams compare a wider, short-format battery pocket where low enclosure depth matters more than a narrow cell layout.
3.7 VNominal voltage
≈0.93WhCalculated energy
4.0 mmBattery thickness
35 mmBattery length
Technical data
402535 Battery Specifications
The 402535 lipo battery combines a 3.7 V nominal voltage, 250mAh capacity, 1C charge rate and 4.0 mm × 25 mm × 35 mm dimensions for thin compact electronics and curved-battery integration evaluation.
| 402535 Mechanical and Electrical Specifications | |
|---|---|
| Product number | 402535 |
| Nominal voltage | 3.7 V |
| Rated capacity | 250mAh |
| Charge rate | 1C |
| Battery dimensions | 4.0 mm × 25 mm × 35 mm |
| Internal resistance | 80mΩ |
| Calculated Electrical References | |
| Standard charge current | Approx. 125mA |
| Rapid charge current | Approx. 250mA |
| Standard discharge current | Approx. 50mA |
| Maximum discharge current | Approx. 250mA |
| Calculated energy | Approx. 0.93Wh |
The 402535 lithium polymer battery is listed at 3.7 V, 250mAh, 1C charging, 4.0 mm × 25 mm × 35 mm and 80mΩ internal resistance. Confirm charging, discharge, protection, connector and curved-device integration information for your intended product and operating conditions.
Product characteristics & advantages
Why Evaluate the 402535 250mAh Curved LiPo Battery?
The 402535 model brings together a 0.93Wh calculated energy budget, 4.0 mm profile, 25 mm × 35 mm footprint, 250mAh capacity and 80mΩ internal resistance. Its main design value is an ultra-thin short format for products where enclosure depth is tightly limited.
The 402535 lithium polymer battery is intended for OEM teams that need a thin energy source and can allocate a wider but short battery pocket in the finished device. Its approximately 0.93Wh calculated energy supports early comparisons of low-power sensing, intermittent communication and short operating cycles. The 25 mm × 35 mm footprint provides a broader packaging reference than narrow cells, while the 4.0 mm thickness helps minimize the battery contribution to enclosure depth. The listed 1C charge rate and 80mΩ internal resistance provide starting points for charger matching and voltage-drop discussions. Confirm the final battery construction, connector, protection design and curved-device requirements.
4.0 mm Thickness for Depth-Constrained Devices
The 4.0 mm profile helps product teams preserve enclosure depth for other components, cushioning and mechanical features around the pouch cell.
25 mm × 35 mm Area for Wider Compact Layouts
The short, wider footprint provides an alternative to narrow battery pockets. Review retention, cable exit, enclosure tolerance and available surface area.
250mAh for Low-Power Runtime Planning
The 250mAh capacity and approximately 0.93Wh calculated energy help compare standby periods, sensor activity and intermittent communication in compact OEM electronics.
80mΩ for Load and Voltage-Stability Evaluation
The listed internal resistance provides an initial reference for load discussions. Test the finished battery configuration under the intended operating conditions.
Curved Battery Category for Shaped Product Concepts
402535 is included in ZERNE's curved lithium polymer battery range. Confirm the suitable construction, assembly method, protection and final device integration requirements.
Battery calculation
Check Capacity, Energy and Estimated Runtime
Use the prefilled 402535 values or enter your own load assumptions for a quick energy and runtime estimate.
LiPo Battery Capacity Calculator
Energy is calculated from nominal voltage and capacity. Runtime uses the entered load power and an adjustable efficiency assumption.
Runtime and charge time are estimates, not guaranteed product performance.
0.93WhEstimated energy
1.67hEstimated runtime
1.00hIdeal charge time
How to Use the Result
The 402535 values are prefilled: 3.7 V, 250mAh and an approximate 250mA current derived from the listed 1C charge rate. Adjust the load power and efficiency to compare different operating scenarios.
- Use the displayed energy reference for an initial runtime comparison.
- Compare the estimate with measured device load and system efficiency.
- Review charger settings and protection limits for the finished configuration.
- Temperature, resistance growth and cutoff conditions affect actual performance.
Use the result as an initial estimate, then discuss sample testing, charger validation and the final battery specification with ZERNE.
Integration guidance
Plan the 402535 Battery Around Thickness and Surface Area
The 402535 battery should be evaluated as part of the finished device: reserve the 25 mm × 35 mm footprint, allow for the 4.0 mm depth, match the 1C charge rate and review the construction requirements for the curved product design.
Use the 4.0 mm Profile in the Enclosure Stack-Up
Check compression risk, cushioning, adjacent components and available depth around the ultra-thin pouch cell before finalizing the enclosure.
Reserve the 25 mm × 35 mm Battery Area
Allow space for retention, cable exit, enclosure walls and service access around the wider short-format footprint.
Confirm the Final Shaped-Device Construction
Discuss the required form factor, bend or contour conditions, protection, connector exit and assembly method with ZERNE before freezing the product enclosure.
Applications & Solutions
Applications for the 402535 250mAh Curved LiPo Battery
The 402535 format is best evaluated against application-specific pocket geometry, energy demand and device shape rather than a generic category. These three paths reflect its 4.0 mm × 25 mm × 35 mm envelope and 250mAh capacity.
01Smart Door Locks
The 4.0 mm thickness and 25 mm × 35 mm plan area can preserve room in compact access-control housings when latch mechanics and cable exit need a thin battery reference.
Explore Smart Door Locks →
02Bar-Code Scanners
The thin pouch can be compared with handheld scanning electronics where grip clearance, connector routing and the 35 mm length must be confirmed against the shell.
Explore Bar-Code Scanners →
03Smart Watches and Wearables
The 250mAh and 0.93Wh reference can support compact wearable planning when the housing can accept a 4 mm battery depth and defined retention features.
Explore Smart Watches and Wearables →These application paths are starting points for OEM evaluation. Final suitability depends on actual load, runtime, temperature, protection, connector and assembly requirements.
READY FOR A FIT REVIEW?
Request a Technical Review →Confirm the 402535 Battery Fit
Share the finished-device pocket, load profile and temperature conditions to receive a focused recommendation for this 250mAh format.
Related Technical Articles
Technical Guidance for Selecting a 250mAh Curved LiPo Battery
Use these resources to connect the 402535 geometry and energy target with temperature effects, current demand, energy planning and safe operation.
Temperature PlanningHow Temperature Affects the Performance of a LiPo Battery
Understand how temperature changes capacity, resistance, charging and usable LiPo battery performance in the finished device.
Read the Temperature Guide →
Current DemandWhat Is the C Rating of a LiPo Battery and Why It Matters
Review how current demand and C-rating concepts affect peak-load discussions, startup behavior and battery selection.
Read the C-Rating Guide →
Energy PlanningWhat Is Energy Density in a Lithium Polymer Battery?
Relate the 0.93Wh reference to the 4.0 mm × 25 mm × 35 mm envelope when comparing runtime planning, usable volume and the final battery pocket.
Read the Energy-Density Guide →LiPoSAFE
DESIGNCharging · protection · heat
Protection PlanningDESIGNCharging · protection · heat
Why Do LiPo Batteries Explode and How to Prevent It
Review charging, handling, storage and protection considerations before integrating a lithium polymer battery near heat sources.
Read the LiPo Safety Guide →OEM curved battery support
Start the 402535 Inquiry with the Enclosure Requirement
A complete inquiry can include the required runtime, device load, 25 mm × 35 mm battery pocket, 4.0 mm depth, device shape, charger and documentation needed to evaluate this 250mAh curved cell.
Information to Include in Your Inquiry
Share the product conditions that determine how the 402535 model will perform in the finished device, especially its battery pocket, device contour, runtime target, load and charging window.
- Target runtime and duty cycle
- Voltage, capacity and battery pocket
- Device shape and available clearance
- Charger and charging conditions
- Operating and storage environment
- Connector, quantity and approval timing
When a Standard Format Is Not Enough
ZERNE can discuss alternate curved-battery capacity, geometry, protection, connector and assembly requirements when the 402535 specification does not match the finished product.
Discuss a Custom BatteryFAQ
402535 Curved Battery Questions
Find answers about the 402535 3.7 V 250mAh lithium polymer battery, including its 4.0 mm profile, 25 mm × 35 mm footprint, 1C charge rate, 80mΩ internal resistance and curved-device design considerations.
What Are the Dimensions of the 402535 LiPo Battery?
The 402535 battery measures 4.0 mm in thickness, 25 mm in width and 35 mm in length.
How Much Capacity and Energy Does the 402535 Battery Provide?
The rated capacity is 250mAh at a nominal voltage of 3.7 V. Its calculated energy is approximately 0.93Wh before system losses.
What Charging Rate Is Listed for the 402535 Battery?
The 402535 battery has a listed 1C charging rate. Confirm the charging current, charging conditions and protection limits for your configuration.
What Is the Internal Resistance of the 402535 Battery?
The listed internal resistance is 80mΩ. Resistance can vary with temperature, state of charge, test method and production tolerance, so voltage stability can be assessed under the intended device load.
Is the 402535 Battery Suitable for Curved Devices?
402535 is included in ZERNE's curved lithium polymer battery range. Confirm the suitable construction, assembly method, protection, connector and final device integration requirements.
What Should Be Checked Before Integrating the 402535 Battery?
Review the 25 mm × 35 mm battery area, 4.0 mm depth, device shape, retention, cable exit, protection design, charger, peak load and connector requirements with ZERNE.
Curved battery inquiry
Review the 402535 Battery Fit with ZERNE
Share the application, runtime target, load profile, 25 mm × 35 mm battery area, 4.0 mm depth, device shape, charging conditions and annual demand so ZERNE can recommend the right sample and validation path.
- Product model and target application
- Required voltage, capacity and runtime
- Device contour and battery-pocket dimensions
- Charger, connector and documentation needs