Cycle Life
The Lithium Polymer Battery range is published at around 500 cycles.
3.7V lipo battery
Rechargeable 502030 250mAh 3.7V lipo battery with JST connector for bluetooth headphones. Lithium polymer battery with PCM.
Category: Lithium Polymer Battery
Product Overview
Rechargeable 502030 250mAh 3.7V Lipo Battery With JST Connector
Size: 5.2*20.5*32.5mm. Model: PL502030.
Key Benefits
Stated Electrical Data
Nominal voltage 3.7V, typical capacity 250mAh. The complete parameter table is published below, not summarised.
Built-in Protection
Supplied with a protection circuit against over-charge, over-discharge, over-current and short circuit.
Working Range
Operating temperature is published per state. Charge: 0~45℃; Discharge: -10~60℃.
Built To Order
Capacity, arrangement, case, terminal, cable, connector and custom logo are all specified by the customer. Dimensions are made according to the device's request.
Application Scenarios
Application: bluetooth headset, bluetooth speaker, beauty equipment etc.
Who It Is For
- Bluetooth headset and speaker brands
- Beauty and personal care device makers
- Wearable, GPS and small instrument manufacturers
Problems It Solves
- Products where the space left for the battery is an odd flat rectangle
- Designs that need the pack to arrive with the board and connector already fitted
Specifications
502030 250mAh 3.7V Lipo Battery Parameter
| Item | Rating | Note |
|---|---|---|
| 1.1 Capacity | Typical: 250mAh | Discharge: 0.2CmA |
| Min.: 240mAh | ||
| 1.2 Nominal Voltage | Average 3.7V | |
| 1.3 Discharge Cut-off Voltage | 3.0V | |
| 1.4 Charge Current | 50mA | Standard Charge |
| 1.5 Charge Voltage | 4.2V | |
| 1.6 Charge Time | Approx 6h | Charge: 0.2CmA |
| 1.7 Max. Charge Current | 240mA | |
| 1.8 Max. discharge current | 240mA | |
| 1.9 Weight | Approx 5g | |
| 1.10 Operating Temperature | Charge: 0~45℃ | |
| Discharge: -10~60℃ | ||
| 1.11 Storage Temperature | <1 month: -20~45℃ | Recommended storage temperature: 20℃, at the shipment state |
| <3 month: -20~35℃ |
Data sheet published by Sunder Battery for this model.
Comparison With Other Products In This Range
The 3.7V lipo battery is one line of the range below. Compare the capacity, dimension and maximum discharge current before deciding, because a pack sized on capacity alone is often the wrong pack.
| Model | Voltage (V) | Capacity (mAh) | Dimension with PCB T*W*L (mm) |
|---|---|---|---|
| PL401030 | 3.7 | 80 | 4.2*10.5*32.5 |
| PL401121 | 3.7 | 60 | 4.2*11.5*23.5 |
| PL481221 | 3.7 | 70 | 5.0*12.5*23.5 |
| PL501225 | 3.7 | 90 | 5.2*12.5*27.5 |
| PL401230 | 3.7 | 120 | 4.2*12.5*32.5 |
| PL501235 | 3.7 | 160 | 5.2*12.5*37.5 |
| PL501730 | 3.7 | 200 | 5.2*17.5*32.5 |
| PL352025 | 3.7 | 110 | 4.0*20.5*27.5 |
| PL502025 | 3.7 | 200 | 5.2*20.5*27.5 |
| PL402030 | 3.7 | 190 | 4.2*20.5*32.5 |
| PL502030 | 3.7 | 250 | 5.2*20.5*32.5 |
| PL652030 | 3.7 | 350 | 6.7*20.5*32.5 |
| PL802030 | 3.7 | 420 | 8.2*20.5*32.5 |
| PL552035 | 3.7 | 350 | 5.7*20.5*37.5 |
| PL702040 | 3.7 | 500 | 7.2*20.5*42.5 |
| PL503030 | 3.7 | 430 | 5.2*30.5*32.5 |
| PL503034 | 3.7 | 460 | 5.2*30.5*36.5 |
| PL803035 | 3.7 | 800 | 8.2*30.5*37.5 |
| PL603040 | 3.7 | 750 | 6.2*30.5*42.5 |
| PL603048 | 3.7 | 900 | 6.2*30.5*50.5 |
| PL753048 | 3.7 | 1200 | 7.7*30.5*50.5 |
| PL523450 | 3.7 | 1000 | 5.4*34.5*52.5 |
| PL853450 | 3.7 | 1500 | 8.7*34.5*52.5 |
| PL704060 | 3.7 | 1800 | 7.2*40.5*62.5 |
| PL553759 | 3.7 | 1350 | 5.7*37.5*61.5 |
| PL535058 | 3.7 | 1600 | 5.5*50.5*60.5 |
| PL783448 | 3.7 | 1300 | 8.0*34.5*50.5 |
| PL603030 | 3.7 | 520 | 6.2*30.5*32.5 |
| PL755070 | 3.7 | 3000 | 7.7*50.5*72.5 |
Table published by Sunder Battery for this product family.
Customization Options
Sunder is an OEM and ODM manufacturer. The list below is what is decided by the customer rather than by us.
- Series and parallel arrangement to reach the voltage and capacity you need
- Case, terminal and cable length to match the equipment it replaces
- Connector fitted to your mating part
- Custom logo and label
- Dimensions made according to the device's request
What we need from you. Voltage, capacity or run time, peak current, the space
available, the connector on your board and the operating temperature range. A drawing or the pack you use now
answers most of these at once.
Use Guide
Charge with CC then CV
Charge at 0.2C constant current to 4.2V, then hold that voltage until the current tails off.
Do not over-discharge
Stop at the published cut-off voltage. Repeated deep discharge is what shortens a lithium ion pack fastest.
Keep it cool
Charge between 0℃ and 45℃. Heat, not cycles, ends most tool packs.
Store part charged
Store around 20℃ in the shipment state rather than fully charged or flat.
Questions About The 3.7V lipo battery
What are the nominal voltage and capacity of the 3.7V lipo battery?
Nominal voltage 3.7V and typical capacity 250mAh. The full parameter table is published on this page.
How many cycles does it give?
The Lithium Polymer Battery range is published at around 500 cycles.
What charge voltage should I use?
4.2V, charged constant current then constant voltage. The normal charge current is 0.2C to 0.5C and the maximum is 1C.
What does it weigh?
Approximately 5g. The dimension and weight for every model in the range are in the model list on this page.
Can you build this to our own size and connector?
Yes. The charge and discharge current can be customised and the dimension is made according to the device's request. Custom logo is available.
Can I get a sample first?
After price confirmation, you can request our battery samples to test.
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