Posted by Trevor Wilson on August 19, 2009, 10:59 pm
**Incorrect. All models of the Prius use NiMH batteries. Except for the
proposed 'plug-in hybrid' which will use Li-Ion batteries. Keeping NiCd
batteries in a constant state of charge is a VERY BAD THING. NiCds should be
'exercised' regularly, by allowing complete discharge and full recharge.
NiMH batteries do not require such actions.
The biggest factor in
> Ni-Cd battery life is the number of discharge cycles...which the Prius
> controls very carefully by keeping the state of charge fairly constant.
**They're not NiCd batteries.
> The age of the battery since it was manufactured is also a factor,
> particularly if the battery is placed on a shelf and allowed to
> self-discharge to zero and then stored for years. Such a battery would
> not last a long time. If a Prius, on the other hand, were being driven
> regularly for 22 years, it might be possible for the battery to last that
> long, at least enough to still be functional even if at a reduced level.
> You could certainly expect to get 10 years. I think Toyota warranties 8
> years so they are pretty sure about 8 years...so the mileage is probably
> the best indicator of remaining battery life and 300,000 miles seems
> reasonable to expect...and is probably about the life expectancy of the
> vehicle, anyway. The replacement cost at when that time comes will
> probably be in the $000 to $000 range, although batteries from wrecked
> cars will certainly be quite a bit cheaper, depending on their mileage and
> condition.
**At least you got the rest right.
--
Trevor Wilson
www.rageaudio.com.au
Posted by David T. Johnson on August 20, 2009, 12:21 am
>
> **Incorrect. All models of the Prius use NiMH batteries.
Ooops. Meant to say that...
--
Posted with OS/2 Warp 4.52
and Sea Monkey 1.5a
Posted by Kev on August 20, 2009, 1:41 am
David T. Johnson wrote:
Be very surprised if it goes past 12-15 years from when the battery was
first fitted not when dopey bought the car
The taxi owner is getting 341,000klms, that's only about 2 years life.
Kev
Posted by rebel on August 23, 2009, 3:35 am
wrote:
>Never say never. The Prius uses Ni-Cad batteries
I don't think so.
> and keeps them in a
>state of moderate charge...never high, never low. The biggest factor in
>Ni-Cd battery life is the number of discharge cycles...which the Prius
>controls very carefully by keeping the state of charge fairly constant.
> The age of the battery since it was manufactured is also a factor,
>particularly if the battery is placed on a shelf and allowed to
>self-discharge to zero and then stored for years. Such a battery would
>not last a long time. If a Prius, on the other hand, were being driven
>regularly for 22 years, it might be possible for the battery to last
>that long, at least enough to still be functional even if at a reduced
>level. You could certainly expect to get 10 years. I think Toyota
>warranties 8 years so they are pretty sure about 8 years
no, they warrant it for a long period because they couldn't sell the cars if the
battery pack had a one year warranty. go figure.
>...so the
>mileage is probably the best indicator of remaining battery life and
>300,000 miles seems reasonable to expect...and is probably about the
>life expectancy of the vehicle, anyway. The replacement cost at when
>that time comes will probably be in the $000 to $000 range, although
>batteries from wrecked cars will certainly be quite a bit cheaper,
>depending on their mileage and condition.
Twelve months ago (in a short documentary clip in the ABC TV midday news), a
Toyota USA rep discussing Prius batteries stated "they cost *us* $000 a time".
They expected that to come down as sales increased - which they may not have
done much in that period due to the GFC. And even, on a best case w-a-g they
are now half that, it is still evident that your replacement cost figures:
(a) are heavily subsidised by Toyco; or
(b) you pulled them out of your arse.
Posted by user on August 23, 2009, 4:21 am
rebel wrote:
> wrote:
>
>
>> Never say never. The Prius uses Ni-Cad batteries
>
> I don't think so.
>
>> and keeps them in a
>> state of moderate charge...never high, never low. The biggest factor in
>> Ni-Cd battery life is the number of discharge cycles...which the Prius
>> controls very carefully by keeping the state of charge fairly constant.
>> The age of the battery since it was manufactured is also a factor,
>> particularly if the battery is placed on a shelf and allowed to
>> self-discharge to zero and then stored for years. Such a battery would
>> not last a long time. If a Prius, on the other hand, were being driven
>> regularly for 22 years, it might be possible for the battery to last
>> that long, at least enough to still be functional even if at a reduced
>> level. You could certainly expect to get 10 years. I think Toyota
>> warranties 8 years so they are pretty sure about 8 years
>
> no, they warrant it for a long period because they couldn't sell the cars if
the
> battery pack had a one year warranty. go figure.
>
>> ...so the
>> mileage is probably the best indicator of remaining battery life and
>> 300,000 miles seems reasonable to expect...and is probably about the
>> life expectancy of the vehicle, anyway. The replacement cost at when
>> that time comes will probably be in the $000 to $000 range, although
>> batteries from wrecked cars will certainly be quite a bit cheaper,
>> depending on their mileage and condition.
>
> Twelve months ago (in a short documentary clip in the ABC TV midday news), a
> Toyota USA rep discussing Prius batteries stated "they cost *us* $000 a time".
> They expected that to come down as sales increased - which they may not have
> done much in that period due to the GFC. And even, on a best case w-a-g they
> are now half that, it is still evident that your replacement cost figures:
>
> (a) are heavily subsidised by Toyco; or
>
> (b) you pulled them out of your arse.
An after market battery pack costs about $2oo>1500.00 landed
a quick google produced that sort of costing
XML site map
>> Lu R wrote:
>>> This should shut "noballs" Noddy up for life about his lies about the
>>> battery needing replacing..lmao..truth sucks dont it? :)
>>>
>>>
>>>
>>> Queensland fleet of Black and White Taxis, owner Graham Boundy knows the
>>> truth about high-mileage Hybrids - and it's surprisingly good. His
>>> oldest Prius has managed a lifespan of 341,000 before needing
>>> replacement of their nickel-metal hydride (NiMH) batteries.? The only
>>> problem even at the end of their battery pack service life was a low
>>> voltage reading. So which means the Battery started to wear out around
>>> 341,000 miles. At 15,000 miles a year, it would take me 22 years to wear
>>> the Battery out
>>
>>
>> Clearly you don't understand how batteries work
>> you will never get 22 years from a battery
> Never say never. The Prius uses Ni-Cad batteries and keeps them in a
> state of moderate charge...never high, never low.