EBL 837 Universal Battery Charger for AA AAA 9V C D NiMH NiCD Rechargeable Batteries - Fast Charging for Home, Office, and Travel Use

Technology: This charger adopts advanced switching power supply technology, which can simultaneously charge 4 AA or AAA. C D rechargeable Ni-MH or Ni-CD batteries and 2PCS 9V Li-ion Ni-MH rechargeable batteries. The charging control is more accurate. Each slot has a separate LED light indicating the charging status.

Indicator function: Turn on the power and connect the charger to the power socket with the specified voltage. If the charger is not loaded into the battery, the LED will not indicate; if the battery is installed, the LED will turn on the red light. When the battery is fully charged, the LED  light will become dark.

Safe Assurance: Automatically stop charging when detecting improper input voltage, defective or short circuit, or non-rechargeable batteries.

Constant Current Charging Mode: Protect the batteries against current fluctuation and keep using the charger safely.