Offline balancing

WF Battery Test & Measurement

As a battery stack operates, the individual cell voltages vary over time. These imbalances lead to decreased capacity and overall battery life, resulting in a need of balancing them to the same voltage level.

Drammen specializes in offline balancing, a technique applied during intervals between battery operation. To speed up the balancing process, Drammen starts with high-current discharging, rapidly achieving the target voltage. The final steps involve fine-tuning through low-current discharge. Drammen allows operators to parameterize the values for precise balancing according to their specific requirements.