Valence Technology, a company that develops lithium iron magnesium phosphate batteries, has signed a three-year supply agreement with Optare, a manufacturer of single and double-deck buses and mini coaches.

Valence said that it will supply the batteries for Optare’s zero-emissions fleet bus, the fully electric Optare Solo EV. The supply agreement represents up to $3.8m in battery system sales for Valence Technology.

The Optare Solo EV bus features a 600V Valence Technology U-Charge lithium phosphate battery system that powers the electric drivetrain.

Housed on either side of the centrally mounted drivetrain, the Valence Technology advanced battery banks provide a total capacity of 85kWh and can be recharged through regenerative braking while in transit, and plug-in power while at base.

Optare said that compared to fleet vehicles powered by traditional fuels, its Solo EV electric buses stand to save local governments costs in routine maintenance each year.

Robert Kanode, president and CEO of Valence Technology, said: ”This appointment of Valence as the exclusive supplier of batteries is a testament to the quality and proven performance of our dynamic energy systems.

”And thanks to the UK Government’s Green Bus Fund, bus manufacturers are striving to meet stringent carbon reduction quotas while allowing riders to breathe cleaner air by putting more zero-emissions bus fleets on the road.”