 The TC-400 four position battery charger accepts up to four IDX SSL-JVC50 7.4V Lithium-Ion batteries. It provides fast, safe simultaneous charging. Fully charged batteries are ready in about 3.5 hours. As a battery is charged, its status is displayed in volts, Ah (as counted by the charger fuel gauge) and percent of charge (estimated, using proprietary algorithm). This charger is equipped with the "TDM" option which adds a charge-discharge-charge cycle. Features Digital LCD display indicates the battery pack capacity, if fully discharged before insertion Each of the 4 channels is fully independent, batteries can be inserted/removed at any time A built-in Battery Test/Discharge Module cycles the pack through charge-discharge-charge, reports true capacity as tested (TDM model only) Worldwide 100-240V AC or 12V DC car power Small lightweight package Warranty 2 years parts and labor |