This way you can check the resting voltage of the battery.
Prius traction battery test.
The hv battery ecu monitors the voltage of each individual block.
The best time to test the 12 volt battery in your prius is after it has been sitting for several hours or overnight.
After driving with my new battery for less than a week these are the night and day items that stand out to me as well as some more general items to look for.
With a traditional car you can normally tell the 12v battery needs replacement by sluggish starts or no starting at all.
When it comes to repairing your toyota prius traction battery there are many ways you can go about it.
If you are a diy guy at home you can fix and balance a battery for a few days and less than.
Whichever block has the lowest voltage is reported in a pid parameter id called battery min block voltage.
Lower than usual mpg.
Testing hv battery hv battery voltage swing checking for block v difference looking for 2v swing spike looking for 1 2v delta min max variance perform hv stall test using electric drive to charge discharge follow safety procedures.
The toyota prius traction battery can be a tricky thing to understand.
I ve included pictures to assist you with this procedure.
Prius perform test and provides access to all the relevant battery information to quickly help identify problems with a simple touch on the screen of your smartphone do not fall victim to bad battery test the battery and print the certificate to prove the health of your hybrid.
The more i research the more i uncover hidden information on these batteries.
Whereas the traction battery or hybrid battery as some call it is used to power the electric parts of the prius electric motor.
With a prius you may experience strange things dimming dash lights a drop in mpg s and if the 12v is completely dead obviously no starting.
Power your prius on by pressing the power button once.
Here is what i found most recently that.
All of the block voltages vary slightly.
The much larger traction battery actually starts up the engine when needed.