A discharger is critical for any AEG since you should always discharge your batteries fully before recharging. This ensures that the battery is able to achieve a full charge each time. Failure to discharge partially used batteries before recharging will lower the life expectancy and capacity of a battery so this is a must buy. If you opt to purchase a charger that has a built-in discharger, then you do not need to purchase this discharger separately.
This discharger has been discontinued by Marui. Marui has released a new type discharger that you can also find in this section. Purchase that one instead.