The Dolgin Engineering TC-40 4-Position Charger for Canon VIXIA HF100, etc. is a 4-position microprocessor-based battery charger. It provides fast, safe simultaneous charging of 7.2V BP-827 batteries. Simultaneous Charging: This charger offers safe simultaneous charging of high capacity battery packs. All four batteries are ready in about 3.5 hours Dynamic Power Management (DPM) minimizes battery charge time. By dynamically adjusting battery charge current, more is allocated to the deeper discharged...