The latest fire occurred Monday and was "caused by a single battery which caught fire," according to the company.

"We believe the root cause was a manufacturing defect. The fire was contained within the battery cabinet enclosure and extinguished by a fire suppression system. It did not spread to the battery room or the building," the company said in a statement about the incident.

The Monday incident marked the fourth fire alert, prompting immediate action from Chirisa Technology Parks.

"This was the fourth alert of this kind at the CTP-01 facility which is unacceptable. Given the possible danger these batteries pose to our facility and employees we will be immediately removing and replacing all batteries with units from a different manufacturer," the company said.

The first fire call

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