PANASONIC / BK4MCD4H

This 4-pack of standard AAA Eneloop NiMH batteries features an upgraded 800mAh minimum capacity for longer-lasting power. With ultra-low self-discharge, they retain about 70% of their charge even after 10 years. Operating flawlessly in extreme temperatures from -20°C to 50°C, these classic rechargeable batteries are a highly reliable choice for everyday devices and emergency preparedness.

[Features]
■ A Standard Model with Even Longer Life
Compared to the previous model (BK-4MCC), the battery capacity has been increased, achieving a minimum capacity of 800 mAh (*1). This user-friendly standard model provides stable power over the long term to a wide range of everyday devices, such as remote controls and various music equipment.

■ Excellent Long-Term Storage Performance That Lasts 10 Years
Thanks to proprietary technology that significantly reduces self-discharge, it boasts a high capacity retention rate: approximately 90% (*2) after one year and approximately 70% (*2) even after 10 years when fully charged. It is excellent not only for everyday use but also as part of disaster preparedness kits or as a backup battery for emergencies.

■ Durability That Holds Up Even at -20°C
With a wide operating temperature range from -20°C to 50°C, it features exceptional low-temperature performance. Its high reliability ensures devices will operate reliably even in harsh environments, such as outdoor winter events or in cold regions.

・The standard Eneloop model with increased battery capacity for even longer life.
・High capacity (min. 800 mAh), ideal for powering a wide range of everyday devices.
・Low self-discharge rate, retaining approximately 90% of its capacity one year after charging and approximately 70% even after 10 years.
・Excellent low-temperature performance that maintains functionality even in cold environments as low as -20°C (operating temperature range: -20°C to 50°C).
・A convenient 4-pack of AA batteries for everyday use.
*1 Minimum (min.) battery capacity based on the charge/discharge conditions specified in JIS C8708 2019 (7.3.2)
*2 After being fully charged and stored at room temperature (20°C). Usage time may be shorter depending on storage conditions and the device being used. In such cases, please recharge the battery before use.

[Specifications]
Type: Nickel-metal hydride battery
Model Number: BK-4MCD/4H
Battery Capacity: min. 800 mAh
Voltage: 1.2 V
Dimensions: Approx. Φ10.5 × 44.5 mm
Weight: Approx. 13 g (per battery)
Quantity: 4 batteries