EELVOL Green Black Charger with 4-Pack 3000mWh Lithium-ion AA Rechargeable Batteries, 1.5V, Independent Slots, 350mA Fast Charge, USB-C Input, Slim & Portable Design

The EEIVOL 4-Pack AA Lithium-Ion Rechargeable Batteries deliver high-performance 3000mWh capacity and a stable 1.5V output, making them ideal for a wide variety of household and electronic devices. The included charger supports independent charging for 1 to 4 batteries at a time, offering flexible and efficient power management. Equipped with advanced MCU smart control and 350mA fast pulse charging technology, it automatically switches to trickle charging once full to prevent over-voltage, over-current, and overheating. The system also identifies non-rechargeable or incompatible batteries, ensuring safety throughout the charging process.

Designed with a slim and portable form factor, the charger is perfect for both travel and daily use. For optimal performance, please operate within the temperature range of 0°C–35°C. Please note: new batteries achieve peak performance after 3–5 full charge-discharge cycles. If the battery has been stored for an extended period, it is recommended to recharge before use. Always disconnect the power supply once charging is complete.

It is normal for the battery to become warm during charging—this is part of the process and not a cause for concern. For your safety, do not attempt to charge non-rechargeable or other types of batteries to avoid potential leakage, explosion, or injury.