LED Test for Rechargeable Batteries

The LED Light test is a high drain or high load test that drains the rechargeable battery in less than 4 hours.

The LED Test for Rechargeable Batteries

• All rechargeable batteries are charged using the same charger.
• All rechargeable batteries are charged at the same rate.
• All rechargeable batteries are handled at room temperature.
• Room temperature is 25 degrees Celsius.
• Room temperature may vary plus or minus 2 degrees throughout the year.
• The AA LED Flashlight ( Torch or Candle ) uses one AA rechargeable Battery.
  
• The AAA LED Flashlight ( Torch or Candle ) uses one AAA rechargeable Battery.

The LED Test Light Box for Rechargeable Batteries

The LED Test Light Box has the following characteristics.

• The interior is painted with a matte black finish to prevent reflections or interference ( from interior or exterior sources ).
• A solar cell captures the light emitted from the LED Flashlight.
  
• The AA LED Flashlight ( Torch or Candle ) is mounted on a fixed platform.
• The AA LED Flashlight is always positioned the same distance from the solar cell.
• The AAA LED Flashlight ( Torch or Candle ) is mounted on a fixed platform.
• The AAA LED Flashlight is always positioned the same distance from the solar cell.

AA LED Test Typical Results

The AA LED flashlight chosen for this test has a relatively steady output. It draws a fairly constant current to maintain a constant LED output. From the graph below, you will see that the solar cell output is fairly constant until power delivered by the rechargeable battery to the LED drops. When the power drops, it is quite fast. In this example, half the power illumination received by the solar cell is lost in about 15 minutes.

AAA LED Test Typical Results

The AAA LED flashlight chosen for this test also has a very steady output. It draws a fairly constant current to maintain a constant LED output. From the graph below, you will see that the solar cell output is fairly constant until power delivered by the rechargeable battery to the LED drops. When the power drops, it is quite fast. In this example, half the power illumination received by the solar cell is lost in about 15 minutes.