803040 3.7V 1000mAh LiPo Battery

The 803040 3.7V 1000mAh lithium polymer battery is designed for compact single-cell devices that require a practical balance of capacity, current capability, and installation flexibility. With a nominal energy of 3.7Wh, it can be used in IoT devices, handheld electronics, smart sensors, portable instruments, and other rechargeable products.

Choosing the right LiPo battery requires more than matching voltage and capacity. Engineers should also consider device current, charging voltage, available installation space, protection requirements, connector configuration, operating temperature, and expected runtime before integrating the 803040 battery.

Part 1. What applications are suitable for the 803040 3.7V 1000mAh LiPo battery?

The 803040 battery is suitable for compact electronics that use a single-cell 3.7V lithium battery system and operate within the battery’s specified electrical limits.

• IoT sensors and monitoring devices – suitable for rechargeable connected products with limited internal space.

• Handheld instruments – can be used in portable meters, scanners, terminals, and similar equipment.

• Smart home devices – suitable for rechargeable sensors, controllers, and wireless accessories.

• Portable electronics – a practical option where approximately 1000mAh capacity meets the required runtime and enclosure space.

• Custom electronic products – connector, wire, protection, and sensing configurations can be evaluated according to the device design.

Before selecting the 803040, confirm the device’s available battery space, average and maximum current requirements, charging circuit, connector, and polarity.

Part 2. How long can a 3.7V 1000mAh 803040 battery run?

A 1000mAh battery theoretically provides 1000mA for one hour. Actual device runtime depends on average current consumption, system efficiency, discharge cut-off settings, temperature, battery aging, and operating conditions.

• 100mA average load: approximately 10 hours theoretically

• 200mA average load: approximately 5 hours theoretically

• 500mA average load: approximately 2 hours theoretically

• 1000mA average load: approximately 1 hour theoretically

These values are theoretical capacity-based estimates rather than guaranteed runtimes. In real applications, additional margin should be allowed for power-conversion losses, current fluctuations, aging, temperature, and the required remaining battery reserve.

Part 3. How should the 803040 battery be matched to the device power system?

The device charging circuit and load requirements should remain within the electrical limits specified for the 803040 battery. The battery has a nominal voltage of 3.7V and requires a lithium-ion charging system with a maximum charge voltage of 4.2V.

• Nominal voltage: 3.7V

• Nominal capacity: 1000mAh

• Maximum charge voltage: 4.2V

• Standard charge current: 200mA

• Maximum charge current: 1000mA

• Standard discharge current: 200mA

• Maximum discharge current: 1000mA

• Discharge cut-off voltage: 2.75V

If the device requires more than the specified discharge current, a different battery configuration should be evaluated instead of assuming that the 803040 can support a higher load.

Part 4. What protection, connector, and wiring should be considered?

The standard 803040 battery includes a PCM protection circuit. Battery protection and the device-side power design should work together to manage abnormal charging, excessive discharge, overcurrent, and short-circuit conditions.

• Overcharge protection: included in the standard PCM configuration

• Overdischarge protection: included

• Overcurrent protection: included

• Short-circuit protection: included

• NTC: not included in the standard configuration

• Connector and wire: should be matched to the device interface, current requirement, installation space, and polarity

For OEM integration, connector type, wire length, wire gauge, polarity, PCM configuration, and optional temperature sensing can be evaluated according to the product requirements.

Part 5. What temperature and storage conditions apply to the 803040 battery?

Charging, discharging, and storage should be considered separately because the 803040 lithium polymer battery has different temperature limits for each operating state.

• Charging temperature: 0°C to 45°C

• Discharging temperature: -20°C to 60°C

• Storage up to 1 year: -20°C to +30°C

• Storage up to 3 months: -20°C to +45°C

• Storage up to 1 month: -20°C to +60°C

Avoid charging outside the specified charging-temperature range. The battery should also be protected from crushing, puncture, short circuits, fire, and other conditions that may damage the pouch cell or protection circuit.

Part 6. When should you choose another 3.7V LiPo battery instead of the 803040?

The 803040 is not automatically the best choice for every 3.7V device. Another LiPo battery may be more suitable when the enclosure, runtime, current requirement, operating environment, or electrical interface differs from the standard 803040 configuration.

• More runtime is required: consider a higher-capacity 3.7V LiPo battery if additional installation space is available.

• Less installation space is available: compare thinner, narrower, or shorter pouch battery formats.

• Higher current is required: select a battery designed for the required discharge profile.

• Different temperature conditions apply: evaluate a battery configuration designed for the required operating environment.

• The electrical interface is different: confirm connector, wire, polarity, PCM, and optional NTC requirements before ordering.

If the standard 803040 configuration does not match your device, compare other 3.7V LiPo batteries by size and capacity or provide your enclosure dimensions and electrical requirements for engineering evaluation.