Cell tester device employing a cathodically depositable metal io
Cell tester device employing spaced apart electrochromic electro
Connection arrangement for battery monitoring circuits
Contact ring for on-cell battery tester
Display device of storage battery
Electrical device with bi-level battery state-of-charge indicato
Electrical device with bi-level battery state-of-charge indicato
Electrical measuring system for testing electrical components
Electrochemical cell
Electrochemical cell
Electrochemical cell
Electrochemical cell
Electrochemical cell having continuous depletion gauge
Electrochemical cell label with integrated tester
Electrochemical cell label with integrated tester
Electrochemical cell label with integrated tester
Electrochemical cell label with integrated tester
Electrochemical cell with adjustable step-like output voltage
Electrochemical cells with end-of-life indicator
Electrochromic thin film state-of-charge detector for on-the-cel