The search returned 2 articles:

  1. June 2009: Project: High-Current, High-Voltage Battery Capacity Meter, Pt.1 by Mauro Grassi, kits: Altronics K1700 (discontinued), PCBs: SC 04206091, 5 shop items
  2. July 2009: Project: High-Current, High-Voltage Battery Capacity Meter, Pt.2 by Mauro Grassi, kits: Altronics K1700 (discontinued), PCBs: SC 04206091, 5 shop items