[Yaesu] Re: Opening Yaesu handheld battery packs for cellreplacement

[rbethman]

I apologize for the error in Lithium Ion vs. NiMH in the cars.  I had 
been to factory making Lithium Ion battery systems.   During the tour I 
was informed, (apparently), erroneously that these large batteries were 
for Electric AND Hybrid autos.

Augie Hansen wrote:
>
>> ...
>> It's not well known, but the batteries in the Prius are only charged 
>> to 40-60% of capacity to maximize life and allow a reserve for 
>> regenerative braking.
>
> Close. The design range is 45-75%. The following is an excerpt from a 
> Consumer Guide AUTOMOTIVE article, and matches what I was told by 
> service personnel at my Toyota dealer.
>
> URL: 
> <http://consumerguideauto.howstuffworks.com/hybrid-batteries-none-the-worse-for-wear-cga.htm> 
>
>
> " To get maximum life out of the Prius battery pack, the car's 
> computer brain does not allow the battery to fully charge or 
> discharge. Toyota says that for the best service life, the Prius 
> battery likes to be kept at about a 60 percent charge. In normal 
> operation, the system usually lets the charge level vary only 10-15 
> percentage points. Therefore, the battery is rarely more than 75 
> percent charged, or less than 45 percent charged.
>
> If you're familiar with the Prius, you know there's a battery-charge 
> indicator on the instrument panel. Toyota says this isn't the charge 
> level per se, but rather a state-of-charge window. The top of the 
> window represents about a 75 percent charge, the bottom about 45 
> percent charge."
>
I'm GLAD you used the word "CLAIMS", in the following paragraph.  The 
wife and I have a very good and close friend whom has had one of the 
VERY early Prius'.  That was when they warranted the batteries for the 
life of the car or some such.  She has had the computer AND one of the 
batteries replaced in under a year of ownership.  Knowing auto 
manufacturers, IF it had been a case of misuse - they would NOT have 
covered it.

> Toyota claims that fleets of Prius vehicles used in taxi service have 
> the original batteries with more than 200,000 miles on them. The 
> company is saying that the battery will last the life of the car, and 
> that the only replacements they've had to do were for failures due to 
> accidents or misuse.
>
> Of course, in ham radio service we're dealing with a different set of 
> requirements. For my emergency "go" kit and portable system, I keep a 
> 55 AH deep cycle AGM battery topped off by a solar panel and 
> Flexcharge controller. Batteries used infrequently with this kind of 
> charging system have lasted 10 years or more without problem.
>
> Gus Hansen
> KB0YH
>

-- 
Bob - NØDGN