March 2026

Five reasons to visit Rotronics at this year’s Bus & Coach Expo

This year’s Bus & Coach Expo is almost upon us, and if you work in bus fleet operations or maintenance, it’s well worth a place in your diary. Co-located with the Commercial Vehicle Show, it’s one of the biggest gatherings of road transport professionals in the UK, with hundreds of exhibitors, thousands of industry visitors […]

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How do you balance battery packs in series?

You may be looking for information on one of two things, and we’ve included both on this page. Either: Balancing 24-volt systems (connected in series); or Balancing series-connected EV modules/cell groups Both these processes are incredibly important for your fleet operations, although for slightly different reasons. You can learn more about how these processes work

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Battery cell balancing – what to balance and how?

Your fleet EVs rely on their high-voltage propulsion batteries. They are, quite literally, the driving force. Despite onboard battery management systems (BMSs) helping keep the cells balanced, the cells themselves inevitably degrade over time. On this page, we explain what exactly happens to make your fleet electric cars’ batteries imbalanced, what happens when you balance

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