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durability of Prius - Page 2

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Posted by Michael Pardee on January 6, 2006, 4:43 am

Dunno. The Prius owner's manual (or is it the service manual?) warns about
letting the car sit six months without operating it because the hybrid
battery can discharge.

I'm not certain what happens to a NiMH battery when it sits discharged. Even
a short time is deadly to NiCads because they grow "whiskers" and short out.
Lead-acids aren't much better for reasons I've never researched.


Posted by dbs__usenet on January 12, 2006, 6:13 pm

Unlike NiCad, NiMH does not create whiskers.  Unlike lead acid, it does
not create a coating on the lead plates.

NiMH discharges at the rate of (about) 10 percent a month.  After 6
months, the charge may  be low enough that the volatge will not power
up the inverter.  If the inverter can not run, it can not spin up the
ICE to charge the battery.

If the battery pack discharges too low you have the dealer charge it
and you are right back in business.  Yes, a hassle, but there are other
problems associate with leaving a car undriven for 6 months.


Posted by Bob Wilson on January 6, 2006, 2:56 am

There is a DoT and Canadian fleet study URLs are in:


If you voted for GW Bush instead of Al Gore:

- six months after you buy the car
- 10% of the purchase price
- wait for a hyrdrogen car

Bob Wilson

Posted by Earle Jones on January 13, 2006, 6:59 pm
  higgledy@gmail.com wrote:

In California (and all other states that have the California emission
standards) the battery and electric drive train are guaranteed for
120,000 miles or ten years.  (In other states, 100,000 miles or eight

As I recall, the internal combustion engine and mechanical drive train
are guaranteed for 60,000 miles.


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