3.15Wh Calculated Energy for Early Runtime Planning
The confirmed 3.7V nominal voltage and 850mAh rated capacity provide approximately 3.15Wh before system losses, cutoff effects and application-specific derating.
3.7V Lithium Polymer Battery · 500–1000mAh Range
3.7 V 850mAh Lithium Polymer Battery 574040
The 574040 LiPo battery provides a 3.7V nominal platform and 850mAh rated capacity in a 5.7mm × 40mm × 40mm pouch format. A broad square-format 850mAh reference with a 40mm × 40mm footprint and 5.7mm thickness.
57404040mm40mm5.7mm
574040850mAh · 3.7V5.7mm × 40mm × 40mm
574040 LiPo BatteryApprox. 3.15Wh calculated energy in a 850mAh-class pouch format
3.7V · 5.7mm × 40mm × 40mm reference visualProduct snapshot
A 850mAh square broad-pocket reference for products with a broad central battery zone
The 574040 model is positioned around square broad-pocket geometry rather than capacity alone. It is suited to compact housings with a broad central battery zone rather than a narrow linear channel. A broad square-format 850mAh reference with a 40mm × 40mm footprint and 5.7mm thickness.
A 40mm × 40mm Square Broad-Pocket Footprint
The 5.7mm × 40mm × 40mm envelope supports early review of the battery pocket, enclosure depth, cushioning, retention and connector access.
Selection focus for 574040
A broad square-format 850mAh reference with a 40mm × 40mm footprint and 5.7mm thickness. The first engineering screen is the 40mm × 40mm plan area, followed by the 5.7mm stack-up and the 850mAh energy target. The square footprint favors broad internal surface area. Verify planar clearance, compression control, cable exit and the 5.7mm stack-up before selecting it. For the device team, It is suited to compact housings with a broad central battery zone rather than a narrow linear channel. Share the usable 40mm × 40mm area, 5.7mm depth, retention method and target operating interval. This sequence keeps geometry, energy planning and electrical validation in one practical selection path.
3.7V · 850mAhNominal voltage · rated capacity
≈17gCalculated weight reference
≈425 / 850mACharge current · standard / rapid
≈170 / 850mADischarge current · standard / maximum
Current, energy and weight values are calculated references for early planning. Confirm final limits and the finished battery configuration with ZERNE.
Technical data
574040 LiPo Battery Specifications
These specifications summarize the 574040 reference format. A broad square-format 850mAh reference with a 40mm × 40mm footprint and 5.7mm thickness. Confirm final construction, protection, connector and validation conditions for the finished OEM battery configuration.
| 574040 Mechanical and Electrical Specifications | |
|---|---|
| Product number | 574040 |
| Nominal voltage | 3.7V |
| Rated capacity | 850mAh |
| Confirmed C-rate | 1C |
| Battery dimension | 5.7mm × 40mm × 40mm |
| Listed internal resistance | 60mΩ |
| Calculated Electrical References | |
| Standard charge current | Approx. 425mA |
| Rapid charge current | Approx. 850mA |
| Standard discharge current | Approx. 170mA |
| Maximum discharge current | Approx. 850mA |
| Calculated energy | Approx. 3.15Wh |
The direct 574040 values are used as the model reference. Current, energy and weight figures are calculated references rather than measured production results. Confirm the final charging profile, discharge demand, protection configuration, connector, tolerances and validation conditions with ZERNE for the finished device.
Product characteristics & advantages
Why Evaluate the 574040 850mAh LiPo Battery?
The 574040 model is positioned around square broad-pocket geometry rather than capacity alone. It is suited to compact housings with a broad central battery zone rather than a narrow linear channel. A broad square-format 850mAh reference with a 40mm × 40mm footprint and 5.7mm thickness. The geometry and energy-planning tradeoff are the primary selection focus for this reference model.
The 574040 page focuses on the decision most relevant to this reference: A broad square-format 850mAh reference with a 40mm × 40mm footprint and 5.7mm thickness. Its capacity, geometry, listed resistance and 1C family rate should be evaluated together with the finished device load and enclosure.
850mAh for Products With A Broad Central Battery Zone
The 850mAh rated capacity provides a defined basis for comparing runtime, standby intervals and service targets in products with a broad central battery zone.
40mm × 40mm Battery Footprint
The 5.7mm × 40mm × 40mm envelope gives engineering teams a concrete reference for enclosure clearance, retention, cable exit and component placement.
5.7mm Thickness to Check Early
Review the listed 5.7mm profile with housing tolerances, cushioning and nearby electronics before finalizing the battery pocket.
60mΩ Internal Resistance Reference
The listed 60mΩ resistance can support early voltage-drop discussion for this square broad-pocket format; validate the finished battery under actual load and temperature conditions.
Battery calculation
Check 574040 Energy and Estimated Runtime
Use the prefilled 574040 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 is an estimate, not guaranteed product performance.
3.15WhEstimated energy
5.66hEstimated runtime
How to Use the Result
The 574040 values are prefilled: 3.7V and 850mAh. Adjust the load power and efficiency to compare different operating scenarios.
- Energy is estimated from nominal voltage and capacity
- Runtime estimate = energy × efficiency ÷ load power
- Actual runtime depends on load profile, cutoff, temperature and system losses
- Use sample testing to validate the final battery and device combination
Use the result as an initial estimate, then discuss charger validation and the final battery specification with ZERNE.
Integration guidance
Plan the 574040 Battery Around the 5.7mm × 40mm × 40mm Envelope
Reserve the stated battery pocket, allow for the 5.7mm thickness, review cable and connector access, and validate the charger, protection and finished load profile before production. The square footprint favors broad internal surface area. Verify planar clearance, compression control, cable exit and the 5.7mm stack-up before selecting it.
Reserve the 40mm × 40mm Battery Area
Allow space for the pouch cell, enclosure walls, cushioning, retention features, cable exit and service access around the listed footprint.
Check the 5.7mm Profile
Review compression risk, enclosure tolerances and adjacent components around the battery before finalizing the mechanical design.
Confirm Electrical and Protection Requirements
Use the calculated 425mA standard-charge, 850mA rapid-charge, 170mA standard-discharge and 850mA maximum-discharge references for early review, then validate the finished battery assembly.
Applications & solution paths
Applications for the 574040 850mAh LiPo Battery
The 574040 format can be considered for products that match its 5.7mm × 40mm × 40mm envelope and 850mAh energy target. It is suited to compact housings with a broad central battery zone rather than a narrow linear channel. Final suitability depends on device load, runtime, enclosure, charging and connector requirements.
01Smart Watches
The 5.7 mm × 40 mm × 40 mm pouch can be compared with smartwatch housing space, display layout, comfort and cable routing before finalizing the battery.
View Smart Watches solutions →
02Portable ECG Monitors
The 850 mAh and calculated energy reference can support early runtime comparisons in portable ECG equipment; confirm load profile, protection and documentation needs.
View Portable ECG Monitors solutions →
03Air Purifiers
The reference can support early review of connected air-purifier layouts where the battery pocket, airflow path and service access must be balanced.
View Air Purifiers solutions →
04POS Machines
The 5.7 mm × 40 mm × 40 mm plan area can be assessed in a POS terminal where display, scanner, controls and enclosure clearance influence the battery pocket.
View POS Machines solutions →The 574040 is positioned within ZERNE's 3.7V 500–1000mAh lithium polymer battery range. Ask ZERNE to confirm the final construction, protection, connector, charging limits and validation plan for the required device.
Related technical articles
Technical Guidance for 574040 LiPo Integration
Use these resources to review the energy, geometry, current and safety questions most relevant to a 5.7mm × 40mm × 40mm pouch battery.
TemperatureHow Temperature Affects the Performance of a LiPo Battery
Keep temperature, resistance, charging limits and the usable energy window in the final validation plan.
Read the technical guide →
SafetyWhy Do LiPo Batteries Explode and How to Prevent It
Review charging, handling, storage and protection considerations before integrating a lithium polymer battery.
Read the technical guide →
Energy DensityWhat Is Energy Density in a Lithium Polymer Battery?
Review how watt-hours, capacity and physical volume work together when the battery must fit a defined enclosure.
Read the technical guide →OEM battery support
Start the 574040 Battery Inquiry with the Device Power Profile
A complete inquiry can include the required runtime, device load, 5.7mm × 40mm × 40mm battery pocket, charger, connector and documentation needed to evaluate this 850mAh reference format. Share the usable 40mm × 40mm area, 5.7mm depth, retention method and target operating interval.
Information to Include in Your Inquiry
Share the product conditions that determine how the 574040 format will fit and perform in the finished device, especially its battery pocket, load and charging window.
- Target runtime and duty cycle
- Voltage, capacity and battery pocket
- 5.7mm depth and enclosure clearance
- Charger and charging conditions
- Operating and storage environment
- Connector, quantity and approval timing
When the Reference Format Is Not Enough
ZERNE can discuss alternate capacity, geometry, protection, connector and assembly requirements when the 574040 specification does not match the finished product.
Discuss a Custom BatteryFAQ
574040 LiPo Battery Questions
Find answers about the 574040 3.7V 850mAh lithium polymer battery, including its dimensions, calculated energy, current references and OEM integration considerations.
What Are the Dimensions of the 574040 LiPo Battery?
The 574040 battery measures 5.7mm in thickness, 40mm in width and 40mm in length.
What Capacity and Energy Does the 574040 Battery Provide?
The listed rated capacity is 850mAh at a nominal voltage of 3.7V. The calculated energy is approximately 3.15Wh before system losses.
What Charge and Discharge Current References Apply to 574040?
The calculated references are approximately 425mA for standard charging, 850mA for rapid charging, 170mA for standard discharge and 850mA for maximum discharge. Confirm the final production limits and test conditions with ZERNE.
What Is the Approximate Weight of the 574040 Battery?
The calculated weight reference is approximately 17g. Final weight can vary with the completed battery configuration and should be confirmed during sampling.
What Internal Resistance Is Listed for the 574040 Battery?
The supplied reference lists internal resistance of 60mΩ. Actual system behavior should be checked under the finished load, temperature and assembly conditions.
How Should the 574040 Format Be Screened During Early Design?
A broad square-format 850mAh reference with a 40mm × 40mm footprint and 5.7mm thickness. Confirm the usable pocket and calculated electrical references before requesting samples.
What Is the Main Advantage of the 574040 Battery Format?
The 574040 provides a 850mAh-class capacity in a 5.7mm × 40mm × 40mm pouch envelope, giving OEM teams a concrete starting point for product-space and energy planning.
Can the 574040 Battery Be Customized?
The 574040 is a reference model. ZERNE can discuss alternate capacity, dimensions, protection, connector and wiring requirements when the listed format does not match the finished product.
What Should Be Confirmed Before Integrating the 574040 Battery?
Review the stated battery area, 5.7mm depth, load profile, charging conditions, protection design, connector, cable exit and enclosure retention with ZERNE.
Lithium polymer battery inquiry
Review the 574040 Battery Fit with ZERNE
Share the application, runtime target, load profile, 5.7mm × 40mm × 40mm battery area, charging conditions and annual demand so ZERNE can recommend the right sample and validation path. Share the usable 40mm × 40mm area, 5.7mm depth, retention method and target operating interval.
- Product model and target application
- Required voltage, capacity and runtime
- Battery-pocket dimensions and clearance
- Charger, connector and documentation needs