Portable Batteries 655065 4.2v 3000mAh 11.1wh Flat Lithium Ion Polymer Battery Cell

The soft-pack form factor eliminates the need for a rigid outer shell, allowing for flexible adaptation to the internal space of handheld monitors, portable Bluetooth speakers, handheld POS machines, and small wearable recorders. This effectively reduces the overall thickness and weight of the device, meeting the core requirement of "lightweight" in portable electronics.

The 11.1Wh energy capacity is a balanced configuration for portable devices: for low-power devices (such as portable blood glucose meters and Bluetooth barcode scanners), a single charge can support 3-7 days of intermittent use; for medium-power devices (such as handheld portable ultrasound probes and small navigators), it can meet the needs of 8-12 hours of continuous operation. It also avoids the bulk and weight redundancy associated with high-capacity batteries, balancing battery life and portability.

The 3.7V nominal voltage of the single-cell ternary lithium polymer battery is directly compatible with the motherboard power supply voltage and charging management chips of most portable electronic devices. This eliminates the need for additional buck/boost circuits, simplifying circuit design, reducing hardware costs and internal space requirements, and minimizing energy loss during voltage conversion.

This type of battery typically boasts a cycle life of 500-800 cycles. For portable devices requiring frequent recharging (such as commercial portable printers and handheld inspection terminals), this significantly reduces battery replacement frequency and lowers long-term maintenance costs.

It maintains stable discharge efficiency over a wide temperature range of -20℃ to 60℃, ensuring normal device operation even in low-temperature outdoor environments (such as portable weather instruments) or high-temperature environments (such as summer outdoor handheld terminals).

The soft-pack structure offers high safety and is suitable for close-fitting/portable applications. Compared to cylindrical and prismatic hard-shell batteries, soft-pack ternary lithium polymer batteries use aluminum-plastic film encapsulation, eliminating the risk of explosion. Even in the event of thermal runaway, only bulging will occur, without triggering a violent explosion, making them far safer than lithium cobalt oxide batteries of the same specifications. This characteristic allows them to be safely used in wearable devices (such as portable ECG patches) and handheld medical monitoring devices, among other portable electronic devices with high safety requirements.

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