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Recently we treated the Prius to a brand new 12v battery...We paid £200 for a Toyota 12v battery fitted by Toyota. I have taken the car to Toyota only 3 timed since 2008 as they are expensive and push the work...After a couple of days for the first time ever the Prius was not at all well. This was 6 weeks ago...Since then she has gone to Toyota twice...once to check the installation of the new 12v battery and the second time last Monday for a diagnostic inspection to trace the cause....they failed! However, they did give me a costed quote for the repairs on non-related work. The repair costs were well above other garages! I spoke to Toyota UK who said they would investigate but nothing from them to date.

Her problems....
The Prius is a 2007, Gen 2. No custom jobs on her. She has done over 267k British miles..no major repairs. Never let us down. Her name is Poppy. Using the fob primary alarm goes off..
Sometimes we press the fob again and the alarm goes off....other times it goes...

A recent 2,245 mile trip inspired benchmarking and generating this graph:
[ATTACH type="full"]58954[/ATTACH]

• Drive segments lines at 40, 60, and 80 mph intersect at zero with the charge curve.
  • Limited to 3 hours (180 minutes) of driving
  • Maximum 30 minutes of charging in 10, 20, and 30 minutes

A horizontal line from one of the three speed lines to the charge curve gives the total minutes for one driving segment, the sum of driving time and charging time. For example, driving at 80 mph for an hour:

• -60 minutes to drive 80 mph
• +8 minutes to charge for that distance at that speed
• 60 + 8 = 68 minutes for that segment
• 80 mi * (60 / 68) = 70.6 mph equivalent speed combined driving and charging

Driving at 80 mph for an hour with required charging, the block-to-block speed will at best be 70 mph or 70 / 80 = 87.5% of the EV driving speed. This leads to a more useful summary chart.

Here is a chart of block-to-block, speed...

Toyota Wowen City is Toyota’s software and AI company. It is still in infant stages, but it is expanding.

12 New Companies Join Toyota Woven City as Inventors | Corporate | Global Newsroom | Toyota Motor Corporation Official Global Website