250mAh 3.7v polymer li ion battery
Polymer battery 652025 3.7V 250mAh is a lightweight and durable rechargeable power source for small electronic products. We can provide UL1642, UN38.3, IEC62133, MSDS certificates.

- UL1642
- IEC62133
- UN38.3
- MSDS
652025 3.7V 250mAh Battery Specs
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Charging Voltage 4.2V
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Nominal Voltage 3.7V
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Nominal Capacity 250mAh
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Discharge Cut-off Voltage 3V
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Charge Current 125mA
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Max Charge Current 250mA
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Discharge Current 125mA
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Max Discharge Current 750mA
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Operatingt Tmperature -20~60℃
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Dimension 6.5*20*37mm
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Weight 5g
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Lifespan 500
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PCM Yes
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Customization Yes
Hongyitai Polymer Battery Factory
Li-polymer battery 3.7V 652025 250mAh 0.925Wh with protection circuit
We offer high quality polymer batteries with built-in protection boards against overcharge, overdischarge and short circuit protection. Its need to be charged with constant current constant voltage, constant voltage charger. Suitable for a variety of electronic devices that require a 3.7V power supply.
The charging and discharging current can be produced according to customer’s needs, such as 1.0C and 3.0C discharge rate. Besides the model 652025, we also have many models of 250mAh batteries.
On the right is a sketch of our polymer batteries. You can clearly see the cells, protective plates, wires, terminals, insulation position, and spray code. Of course, each battery has its own unique battery information. Feel free to send us to custom your own lithium polymer battery model.
China lithium polymer battery
Li-polymer battery charge & discharge curve
Polymer Battery Curve (Time — Cpacity && Specific capacity)
Polymer Battery Curve (Time — Voltage && Current)
Cycle No. – Charge discharge efficiency
Cycle No. – Charging Capacity & Discharge Capacity & Charging Specific Capacity & Discharge
Lithium polymer battery component
Li-polymer battery connector models
Common wire gauge sizes for polymer batteries include.
16AWG (1.31mm²)
18AWG (0.82mm²)
20AWG (0.52mm²)
Commonly used terminal types for polymer batteries:
JST-XH
JST-EH
XT30
XT60
EC3
IC5
Molex 5264 Series
Molex 5268 Series
Molex 5282 Series
Molex 5264 Mini-Fit Jr.
Our li-polymer battery production process
The following is a simplified description of our lithium polymer battery manufacturing process:
1. Mixing
Make a slurry of cathode (positive side) and anode (negative side) electrodes according to the scheme and recipe of the polymer battery model.
2. Coating
Paste is applied to a metal foil (aluminum for cathode, copper for anode). This creates the desired positive and negative plates
3. Cutting
Cut the dried electrode plates to the exact length and width required for the battery cell.
4. Winding
The cathode, anode and diaphragm are wound together. Forms the internal structure of the cell.
5. Injection of electrolyte
Inject electrolyte into the encapsulated cell to allow lithium ions to travel between the positive and negative plates.
6. Sealing & Formation
Encapsulate the cell with an aluminum-plastic film casing to prevent the electrolyte from being exposed. Activate the internal chemical material by charging and discharging.
7. Aging and Testing
Final test of capacity, voltage and overall performance through high and normal temperature aging tests.
Get Started
Get 652025 3.7V 250mAh pouch battery quote today
We will evaluate your project and get back to you within 1 working day.