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EV charging glossary

Battery

B2U

Also called battery second use

B2U means battery second use, the reuse of an EV traction battery in another application after it leaves its original vehicle role.

Stationary energy storage is a common second-use application because weight and packaging constraints are less severe than in a vehicle. A battery can leave automotive service while retaining useful capacity for a less demanding duty.

Reuse can extend the service life of the pack before material recycling. Those are different end-of-first-life routes.

Read more EV battery technology explained

Related terms

Second-use battery

State of health

Battery Energy Storage System
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