Panasonic BK-4MCCA4BA Nimh Rechargeable Battery

Product Description

The PANASONIC BK-4MCCA4BA is a NiMH rechargeable battery from the Eneloop line, designed for repeated charge and discharge cycles in solar-powered and general-purpose applications. NiMH chemistry provides stable voltage output and a lower self-discharge rate compared to standard alkaline or older rechargeable chemistries, making this battery suitable for devices that sit unused between service calls or seasonal deployments. Licensed electricians, HVAC technicians, and field service professionals commonly stock rechargeable batteries for thermostats, remote controls, wireless sensors, and low-voltage test equipment.

This battery is sold as a single unit and fits AAA-size battery compartments. It is well-suited for residential and light commercial applications where a maintainable, rechargeable power source is preferred over disposable cells. Typical use cases include powering wireless thermostats, occupancy sensors, handheld meters, and other low-drain field devices commonly encountered in HVAC, electrical, and building automation work.

Key Features

• NiMH chemistry delivers stable voltage with low self-discharge for extended shelf life between uses
• Rechargeable design reduces recurring battery replacement costs in frequently serviced equipment
• AAA form factor fits a wide range of standard battery compartments
• Eneloop-line construction supports repeated charge cycles without significant capacity loss
• Sold individually, allowing quantity purchasing matched to actual field needs

Compatibility

Designed as a direct-fit AAA NiMH rechargeable replacement for devices requiring a standard AAA battery in solar-powered or general-purpose low-voltage applications.

Installation Notes

Insert with correct polarity as marked inside the battery compartment. When using rechargeable NiMH batteries, ensure the charger is rated for NiMH chemistry, as chargers designed for NiCd cells may not terminate charge correctly. Power down or remove batteries from devices before servicing associated low-voltage wiring or controls. Dispose of spent NiMH cells in accordance with local regulations, as they may not be placed in standard waste streams.