BOL Basic Hi-Performance Charger (No Discharge Function) This smart charger is the must have upgrade for your airsoft AEG package purchase. This charger has a three color LED that displays the current disposition. The red LED indicates whether or not power is being fed to the charger. The yellow indicates a slow or trickle charge cycle. The green LED indicates a fast charge cycle where the charge will pulsate between chosen amperage right and a trickle to avoid overheating the battery. The auto-sensing functions also allow the charger to specifically adjust the voltage for each battery that is plugged in as long as it is between 4.8v and 9.6v. As an added bonus, this product has a Delta Peak Cut-off feature that automatically stops charging the battery when the voltage equalizes and no more juice can be squeezed in. This helps prevent such heinous things resulting from over-charging like cell damage, wire or lead damage, cell explosion, and possible fires. Capable of out-pacing our other chargers with an output extending up to 4.0 amps, the only thing this charger is missing is a discharge feature. The package includes the charger, mini and large tamiya connectors, and a power cord. Note: This charger does not have a discharge function. If you have a NiCd battery you will have to either flat-line or discharge the battery before charging or you risk reducing the efficiency of your battery! Also avoid charging your NiMH battery above 1.5 A unless the capacity exceeds 2000mah.