Patent ID: 11933860
Assignee: nan
Field: Measurement (Instruments)
Classification: CPC G  H  Y | IPC G  H

Claim 42:
43. A circuit assembly for forming and testing batteries comprising:
a battery testing system (BTS) having channels for testing multiple batteries simultaneously;
a parallel test management device (PTMD) for each battery, wherein each PTMD connects to its respective battery serially to form a PTMD-battery combination, wherein the PTMD comprises:
a main relay or switch configured for connection to a terminal of a battery;
a current transducer or shunt connected in series with the main relay or switch, wherein each of the current transducer and the shunt is configured to measure current through the battery, wherein the main relay or switch is between the current transducer or shunt and the battery terminal;
an auxiliary relay connected in series with a current limiting resistor, wherein the auxiliary relay and the current limiting resistor are connected to and in parallel with the main relay,
wherein the auxiliary relay connects directly to the current limiting resistor, wherein the auxiliary relay connects between the battery and the main relay or switch, and wherein the current limiting resistor connects between the main relay or switch and the current transducer or shunt; and

circuits for connecting PTMD-battery combinations in parallel to form parallel PTMD-battery groups and for connecting the parallel PTMD-battery groups to a BTS channel,
wherein the BTS channel provides programmed current, voltage or power, wherein the BTS channel is configured to pass current through each battery in a parallel PTMD-battery group, wherein current is distributed to each battery in a balanced manner, and
wherein the BTS channel is configured to provide programmed current, voltage or power to multiple batteries simultaneously, thereby forming or testing a plurality of batteries simultaneously with one BTS channel.