The Topcon BC-27CR is a charger for Topcon BT-52Q and BT-52QA batteries. It is compatible with a variety of Topcon total stations, including the GTS-210, GTS-220, GTS-230, GPT-1000, GPT-2000, and GPT-3000. The charger has an input voltage of 110 to 240V AC and an output voltage of 12.6V DC. It can charge a battery from empty to full in about 4 hours.
