## Identifying the Charging Algorithm in Use

Follow these steps to identify the charging algorithm in use on the RC Series W/UI model charger:

1. On a powered charger, press and release the charger button, to display the charging algorithm currently in use. The "Charge Status" indicator shows the algorithm (also called: ”profile”) in a sequence of fast **red** flashes and slower **green** flashes of the LED; the algorithm number is equal to the number of **green** flashes. This sequence is repeated twice.

Algorithm 7 = **Red** flashes // **Green Green Green Green Green Green Green**

Algorithm 7 =

2. An algorithm number ten or greater is displayed in the same way, but with a pause between the green flashes for the first and second digits of the algorithm number. This sequence is repeated twice.

Algorithm 33 = **Red** flashes // **Green Green Green** || **Green Green Green**

Algorithm 33 = ||

## Selecting a New Charging Algorithm

1. Press and hold the charger button to enter the "Algorithm Select" mode. After five seconds, a sequence of fast red flashes and slower amber flashes appears on the "Charge Status" indicator, confirming the charger is in this mode.

2. Release the charger button.

3. The "Charge Status" indicator shows the charging algorithm currently in use, similar to the previous "Identifying the Charge Algorithm in Use" instructions, but with **amber** flashes to indicate the algorithm instead of **green** flashes. This is repeated four times.

Algorithm 33 = **Red** flash // **Amber Amber Amber** || **Amber Amber Amber**

Algorithm 33 = ||

4. To display the next algorithm available in the charger, press the charger button anytime during the four cycles. The sequence in the previous step starts again, but shows the next algorithm available in the charger. If there is only one algorithm in the charger, the old algorithm will still be shown.

5. When your desired algorithm is shown, press and hold the charger button for seven seconds to select that algorithm. The LED changes to a steady **red**, and after the seven seconds have elapsed, the new algorithm is displayed in **green**. This repeats for two cycles, with **red** flashes in the middle to indicate the end of a cycle.

Algorithm 7 = **Green Green Green Green Green Green Green**

Algorithm 7 =

If the charger button is released before seven seconds, the "Charge Status" indicator reverts to displaying the last algorithm in **amber** to signify the button was released too soon, and therefore the new algorithm was not selected.

6. Press the charger button to confirm that the desired algorithm has been selected.