Battery Panasonic VL2020-1HFE 3V Li-Ion 20mAh horizontal rechargeable

Rechargeable Panasonic VL2020-1HFE lithium-ion battery provides a nominal voltage of 3V and a capacity of 20 mAh in a compact horizontal housing. The battery is designed for small electronic devices that require a low-capacity, rechargeable power source for backup or continuous low-drain operation. Its horizontal format and small footprint make it suitable for tight mounting spaces and designs where polarity and connector orientation require a side-mounted cell.

Advantages

This Panasonic lithium-ion cell offers stable nominal voltage during short discharge periods and supports multiple recharge cycles for repeated use. The horizontal configuration facilitates straightforward installation in devices with limited vertical clearance. The chemistry provides a predictable discharge profile and low self-discharge compared with some primary coin cells, making it practical for periodic use and short-term memory backup.

Suitable for

• Real-time clocks and motherboard CMOS backup in compact electronics
• Small handheld instruments and measuring devices with side-mounted battery compartments
• Remote controls, sensors, and low-drain communication modules
• Device maintenance and replacement where a rechargeable 3V cell is specified

Key specifications

• Chemistry: lithium-ion rechargeable
• Nominal voltage: 3 V
• Typical capacity: 20 mAh
• Mounting format: horizontal / side-mount
• Intended use: low-drain and backup power applications

How to use

Install the battery in the device following the polarity marking and ensuring the horizontal orientation matches the compartment or connector. Use a charger or charging circuit appropriate for small lithium-ion cells, observing manufacturer-recommended charge current and termination methods. Avoid deep discharge and follow the device’s service instructions for charging intervals; monitor the device for proper operation after installation.

Usage recommendations

Store the battery in a cool, dry place at moderate state of charge if not used for extended periods. Replace or recharge the cell when device behavior indicates loss of backup voltage. Do not subject the battery to short circuits, mechanical damage, or exposure to high temperatures; follow standard lithium-ion handling and safety practices.