9V Lithium Polymer Block Battery

admin | 23.03.2026

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Description: This 9V Lithium Polymer battery offers a stable voltage of 9V, unlike standard batteries that lose power and voltage over time.

Benefits:

Consistent voltage provided by a 3.7V 300mAh Polymer Li-ion battery.
Includes an additional micro on/off switch for energy saving.
Step-Up module modification is essential for safe operation, including replacing the resistor with an SMD 603 6.8kΩ.

Recommendations:

Standard charging current: 0.5C (150mA).
For increased capacity, consider using an 802040 650mAh battery with a protective plate.
Ensure to set the module to 9V using a multimeter before connection.

This model is suitable for DIY projects and as a replacement for standard batteries.