Measuring battery performance and safety using internal resistance (AC-IR) and open-circuit voltage (OCV)

Inspect the quality of completed cells, modules, and packs on production lines. Measure internal resistance (AC-IR) and open-circuit voltage (OCV) to check battery quality. Cells produced at the cell production factory are shipped to the module production factory after undergoing a shipping inspection. Since factors such as vibrations during shipment and even the passage of time can cause defects, batteries undergo an acceptance inspection before being assembled into modules and packs.

BT3563A
Large packs for xEVs, Large packs of up to 300 V
Voltage measurement ranges: 6 V/60 V/300 V
Resistance measurement ranges: 3 mΩ/30 mΩ/300 mΩ/3 Ω/30 Ω/300 Ω/3 kΩ

• Simultaneous measurement of internal resistance and open circuit voltage.
• Fully automated production line testing of large packs for xEVs or large packs of up to 300 V.
• Measure from 0 Ω to 3.1 kΩ (minimum resolution 0.1 μΩ)
• Resistance measurement ranges: 3 mΩ/30 mΩ/300 mΩ/3 Ω/30 Ω/300 Ω/3 kΩ
• Measure from 0V DC to ±300 V DC (minimum resolution 10 μV)
• Voltage measurement ranges: 6 V/60 V/300 V
• Equipped with LAN