The cop vehicle had less than 50 per cent battery when the officer started his shift at 2.00pm and continued to run nine hours until the end of the working day.
She said the Tesla had performed well in a previous chase. "If someone else is able, can they maneuver into the number one spot?"
However, before another officer could take over for Hartman, the chase was called off as a result of the wanted individual driving in the shoulder lanes after coming upon heavy highway traffic.
Cops were chasing a suspect vehicle through the South Bay of San Francisco.
As for Hartman, he wound up finding a charging station in nearby San Jose for his Tesla cruiser.
The Fremont Police Station explained that the previous shift had allegedly forgotten to recharge the Tesla auto.
The officer happened to be driving the Police Department's only Tesla, and the fully electric vehicle was just about out of battery power.
"The Tesla wasn't fully charged at the beginning of the shift", a Fremont police spokesperson said.
"This unfortunately happens from time to time even in our vehicles that run on gas, if they aren't re-fueled at the end of a shift", Bosques said.
Another officer in a conventional auto took over the pursuit.
However, the department's public affairs manager, Geneva Bosques, said the mishap was nothing more than a lesson regarding their Tesla pilot progam.
The CHP informed Fremont police that the vehicle they were chasing was later found crashed into some bushes not far from where the chase was called off, and the driver was not found, Bosques said. While the Tesla (TSLA) electric patrol auto wasn't fully charged at the time of the incident, it came down to the last six miles of driving range when the pursuit was finally abandoned.
A spokesperson for the police department told CNN they are six months into a pilot program for using the electric cars in their fleet. Other agencies, including the Los Angeles Police Department, have purchased the cars but did not keep them or used them only for events. The auto typically has 40 to 50 percent of its charge remaining after a shift, she says.