LP701240 Customized Narrow and long strip-shaped Rechargeable Li Polymer Battery 701240 3.7V 280mAh
LP701240 Customized Narrow and long strip-shaped Rechargeable Li Polymer Battery 701240 3.7V 280mAh
LP701240 Customized Narrow and long strip-shaped Rechargeable Li Polymer Battery 701240 3.7V 280mAh
LP701240 Customized Narrow and long strip-shaped Rechargeable Li Polymer Battery 701240 3.7V 280mAh

| Specification of Customized Narrow and long strip-shaped LP701240: |
Specification | Parameters | Li- Polymer battery SER LP701240 |
Nominal | Voltage | 3.7V |
Capacity | 280mAh @ 0.2C to 2.75 V @ 23° C | |
Dimension | 7*12*40mm | |
Electrical | Constant Discharge Current | 56mA |
Max Discharge Current | 280 mA | |
Physical | Terminals/ Connector | Nickel Tabs, wire, plug or OEM |
Others | Working Temperature | -25-60℃ |
Storage Temperature | 0~35℃ | |
Protection Functions (PCM) | Over charge, Over discharge, Over load, Short Circuit protection | |
High Light | Custom ultra slim Lipo Battery SER LP701240 Customized Narrow and long strip-shaped Rechargeable Li Polymer Battery 701240 3.7V 280mAh | |
| Features of Customized Narrow and long strip-shaped LP701240: |
1. Small size, High capacity;
2. Light weight
3. Small internal resistance
4. Excellent discharge performance
5. long life cycles
6. customized shape
7. No memery effect
8. Dual IC chips, that can anti-shortcircuit, anti-overcharger, anti-overcurrent, anti-overload

PCB Functionality
The PCB integrated into both battery models serves as the brain of the battery management system. Its primary functions include:
Over - charging Protection:
One of the primary functions of the PCM is to prevent over - charging of the battery. When the battery voltage reaches its maximum safe level (usually around 4.2V), the PCM automatically cuts off the charging current, preventing further voltage increase. Over - charging can cause the battery to overheat, swell, or even explode, so this protection is crucial for ensuring the safety and longevity of the battery.
Over - discharging Protection:
Similarly, the PCM protects the battery from over - discharging. When the battery voltage drops to a certain low level (typically around 2.7 - 3.0V), the PCM disconnects the load from the battery, preventing further discharge. Over - discharging can damage the battery's internal structure and reduce its capacity over time.
Short - Circuit Protection:
In the event of a short - circuit, where the positive and negative terminals of the battery are directly connected, the PCM quickly detects the excessive current flow and shuts down the battery to prevent overheating and potential fire hazards.
Over - current Protection:
The PCM also monitors the current flowing in and out of the battery. If the current exceeds a safe limit during charging or discharging, it will limit or cut off the current to protect the battery and the connected device.
Boasting a nominal voltage of 3.7V and a capacity of 280mAh, this battery delivers stable, reliable power to support the daily operation of low-to-medium power-consuming devices. As a Li polymer battery, it offers inherent advantages: lightweight construction, flexible form factor (adaptable to custom shapes beyond the standard strip), and excellent safety performance, minimizing risks of leakage or overheating.
As a professional manufacturer in the lithium battery industry, SER Battery has a variety of lithium polymer batteriess, including:
1. low-temperature lipo battery
2. high-rate Lipo battery and
3. normal soft-pack Lipo batteries.
If you want a custom size & capacity of li polymer battery, it's also friendly for us.
Our experienced engineers and advanced technology will give you safe, excellent and fast design solution, giving your product a competitive edge over competitors.
All we do what we want to help you to start your good idea.
| Applications: |
Widely used for :
1.Intelligent Bracelet
2.Google glasses
3.Bluetooth Earphone
4.Smart wearable devices, smart cards, smart electronics
5.Bluetooth earphone, power bank,MPS, Tablet PC. laptop,GPS
6.Intelligent door lock, intelligent lighting, emergency light
7.Medical devices, electric children toys, electric shoes, electric blanket.

The LP701240 customized narrow and long strip-shaped rechargeable Li polymer battery stands out as a tailored power solution for compact electronic devices. Its model number “701240” carries key dimensional information: approximately 7.0mm in thickness, 12mm in width, and 40mm in length—an ultra-slim, elongated design that fits seamlessly into devices with limited space, such as smart wearables, miniaturized sensors, and portable medical gadgets.
Whether integrated into fitness trackers, small-scale IoT devices, or portable diagnostic tools, the LP701240 combines customization, compactness, and consistent performance, making it a preferred choice for manufacturers seeking to optimize device design without compromising power supply.
You may also interested in other lithium batteries:
| LiSOCL2 battery | LiMnO2 battery | Ultra thin battery | Lipo battery | LiFePO4 batteries | Portable power station |
| Have not find a suitable battery for your prototype? |
Let's talk about what SER experience can do for you! |