Why Evaluate the 451220 70mAh Configuration?
The 70mAh rating gives a lower energy target within the established 451220 envelope, which may help preserve a compact battery pocket when the device duty cycle is modest.
3.7 V Lithium Polymer Battery
3.7 V 70mAh Lithium Polymer Battery 451220
The 451220 70mAh LiPo battery is a compact configuration in a 4.5mm × 12mm × 20mm dimensional envelope. Its approximately 0.26Wh energy reference provides a lower-capacity comparison point to the existing 451220 80mAh configuration while preserving the same model format.
451220 LiPo Battery Reference4.5mm × 12mm × 20mm Format
3.7 V · ≈0.26WhProduct Snapshot
A Capacity-Specific 451220 Reference for Small Devices
The 451220 model represents the dimensional envelope; this page focuses on the verified 70mAh configuration. It gives OEM teams a clear way to compare capacity, runtime and the same 4.5mm × 12mm × 20mm pocket without treating the two capacities as accidental duplicates.
Use the Capacity Variants Intentionally
The 451220 80mAh version provides a nearby higher-capacity comparison in the same format. The final choice should follow runtime, load, charger and enclosure requirements.
70mAhRated Capacity
0.26WhCalculated Energy
4.5mmCell Thickness
350mΩInternal Resistance
Technical Data
451220 LiPo Battery Specifications
The table separates confirmed configuration data from calculated electrical references so the 451220 format can be reviewed quickly during product planning.
| Mechanical and Electrical Specifications | |
|---|---|
| Product number | 451220 |
| Nominal voltage | 3.7 V |
| Rated capacity | 70mAh |
| Battery dimensions | 4.5mm × 12mm × 20mm |
| Approximate battery weight | Approx. 1.4g |
| C-rate | 1C |
| Internal resistance | 350mΩ |
| Calculated Electrical References | |
| Standard charge current | Approx. 35mA |
| Rapid charge current | Approx. 70mA |
| Standard discharge current | Approx. 14mA |
| Maximum discharge current | Approx. 70mA |
| Calculated energy | Approx. 0.26Wh |
Approximate weight follows the 3.7 V LiPo family reference. Current and energy values are calculated planning references, while internal resistance is a supplied reference; confirm the final charger, protection and load specification for the finished battery.
Product Characteristics & Advantages
Micro 70mAh Reference in the 451220 Envelope: Why Evaluate the 451220 LiPo Battery?
The 451220 70mAh page is differentiated by its capacity-specific role within an existing model envelope. It is a lower-energy reference for the same compact pocket, with 350mΩ listed resistance and a calculated 0.26Wh reserve.
The 451220 70mAh page is differentiated by its capacity-specific role within an existing model envelope. It is a lower-energy reference for the same compact pocket, with 350mΩ listed resistance and a calculated 0.26Wh reserve. The calculated electrical references provide a structured starting point for charger, load and protection discussions, while the final battery remains a configurable OEM design.
70mAh Within the 451220 Envelope
The page represents one verified capacity configuration of the 451220 dimensional format and should be compared with the 80mAh version by actual device demand.
12mm × 20mm for Compact Placement
The short rectangular outline can fit miniature electronics, board-side cavities and small wearable housings.
4.5mm for a Controlled Small Stack
Review the thickness with cushioning, housing clearance, lead exit and the final connection arrangement.
0.26Wh for Modest Low-Power Duty Cycles
The calculated energy provides a specific starting point for standby, sensing and periodic communication comparisons.
350mΩ for Conservative Peak-Load Review
Use the listed resistance to frame voltage-drop questions and compare the 70mAh and 80mAh versions under the same device load.
Battery Calculation
Check 451220 Energy and Estimated Runtime
Use the prefilled 451220 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.
Approx. 35mA is the approximate standard-charge reference for 70mAh.
0.26WhEstimated Energy
—Estimated Runtime
—Ideal Charge Time
How to Use the Result
The 451220 reference values are prefilled: 3.7 V, 70mAh and a standard-charge reference of approximately 35mA. Adjust the load power and efficiency to compare operating scenarios; the calculator does not infer safe limits from capacity alone.
- Energy = voltage × capacity ÷ 1000
- Runtime estimate = energy × efficiency ÷ load power
- Ideal charge time = capacity ÷ entered charge current
- Actual runtime depends on load profile, temperature, cutoff and system losses
Use the result for early comparison, then confirm the charger, protection, connector and final battery specification through sample testing.
Integration Guidance
Compare the 451220 70mAh and 80mAh Pocket Options
The 451220 model is a dimensional format with two verified capacity configurations in the project series. Review the shared 4.5mm × 12mm × 20mm pocket, then use runtime and load requirements to choose between 70mAh and 80mAh.
Keep the Shared Envelope Stable
The 70mAh configuration uses the same 4.5mm × 12mm × 20mm dimensional reference as the 80mAh version, so the pocket can be compared without assuming a new shape.
Use 0.26Wh for the Lower Target
The calculated energy is lower than the 80mAh reference. Check standby time, reporting interval and recharge expectations before making the capacity decision.
Review the 350mΩ Listing
Compare the resistance reference with the device peak current, connector and cutoff conditions; capacity alone does not define voltage behavior.
Leave Room for the Finished Assembly
Plan cushioning, retention, lead exit and protection around the cell rather than treating the dimensional format as the final assembled size.
The stated dimensions and calculated values are reference inputs for design planning. Confirm the finished battery drawing, tolerance, protection, connector and test conditions before production release.
Applications & Solutions
Applications for the 451220 70mAh LiPo Battery
The 451220 70mAh configuration can be evaluated in compact products that need a small rechargeable reserve and benefit from choosing the lower capacity within a shared battery envelope.
01Hearing Aids
The 4.5mm × 12mm × 20mm envelope can be compared with compact hearing-aid housings where thickness, low mass and connector access are tightly constrained.
View Hearing Aid Battery Solutions →
02Smart Bands
The 70mAh reference can support an early smart-band review focused on sensor clearance, display area, strap geometry and the desired operating interval.
View Smart Band Battery Solutions →
03Pet Trackers
The short 20mm length can be screened for lightweight pet trackers where retention, radio activity and enclosure comfort matter more than a large energy reserve.
View Pet Tracker Battery Solutions →These application paths are starting points for OEM evaluation. Final suitability depends on actual load, runtime, temperature, protection, connector and assembly requirements.
Related Technical Articles
Guidance for 451220 Battery Selection
These guides help compare the 70mAh configuration with the 80mAh alternative through energy, current demand and operating conditions.
Energy PlanningWhat Is Energy Density in a Lithium Polymer Battery?
Use the 0.26Wh reference to set a realistic capacity-versus-runtime discussion.
Read the energy planning guide →
Current DemandWhat Is the C Rating of a LiPo Battery and Why It Matters
Compare the 350mΩ listing with the actual load and the 80mAh same-envelope option.
Read the current demand guide →
Operating ConditionsHow Temperature Affects the Performance of a LiPo Battery
Review how temperature can affect the usable difference between the two capacity configurations.
Read the operating conditions guide →OEM Battery Support
Start the 451220 Inquiry with the Capacity Choice
Share the common 4.5mm × 12mm × 20mm pocket, required operating interval and load profile so ZERNE can compare the 70mAh and 80mAh configurations for the device.
Useful RFQ Inputs
The RFQ should identify the capacity target and show whether the shared 451220 envelope is already fixed in the housing.
- 4.5mm × 12mm × 20mm shared pocket
- 70mAh target and required interval
- Peak load and voltage-drop conditions
- Charger, protection and temperature details
- Connector, cable route and retention
- Samples, quantity and documentation needs
When the 451220 Capacity Step Is Not Enough
ZERNE can compare the 80mAh same-envelope configuration, nearby micro cells or a custom capacity and connection arrangement when the 70mAh target does not match the finished product.
Discuss a Custom BatteryFAQ
451220 LiPo Battery Questions
Find answers about the 451220 3.7 V 70mAh lithium polymer battery, including its capacity-specific relationship to the 80mAh configuration, calculated energy and compact pocket.
What are the dimensions of the 451220 LiPo battery?
The 451220 reference is specified as 4.5mm × 12mm × 20mm in thickness × width × length order. Allow additional room for cushioning, retention, leads, connector and protection.
How much energy does the 451220 battery provide?
The rated capacity is 70mAh at a nominal voltage of 3.7 V. The calculated energy is approximately 0.26Wh before cutoff, load, temperature, resistance, protection and system losses.
What is the approximate weight of the 451220 battery?
Using the 3.7 V LiPo family weight reference, the 70mAh configuration is approximately 1.4g. Finished weight depends on leads, connector, protection and assembly details.
What current references apply to the 451220 configuration?
The calculated current references are approximately 35mA standard charge, 70mA rapid charge, 14mA standard discharge and 70mA maximum discharge. Confirm the final safe limits for the completed battery.
How is the 451220 70mAh page different from the 80mAh page?
Both pages represent the 451220 dimensional format, but this page targets the verified 70mAh capacity while the other configuration targets 80mAh. Their SEO and selection logic are capacity-disambiguated.
What is the calculated energy of the 451220 70mAh configuration?
At 3.7 V nominal voltage, 70mAh gives approximately 0.26Wh of calculated energy before cutoff, load, temperature, resistance, protection and system losses.
Technical Inquiry
Choose the 451220 Capacity with ZERNE
Share the common 451220 pocket, target runtime, load profile and charger conditions so the 70mAh and 80mAh configurations can be compared on the same device requirements.
- 4.5mm × 12mm × 20mm shared envelope
- 70mAh target and 0.26Wh reference
- Load, charger and 350mΩ resistance conditions
- Connector, samples and production plan