Re: Speaking of car batteries

"Blue Heeler" <woof@[EMAIL PROTECTED]
> wrote in message 
news:63a3svF270t4hU1@[EMAIL PROTECTED]
> Lu R wrote:
>
>> I once had to recharge a flat  beaurepaire battery and it went
>> reverse charge on me! Put it back in the car and it blew my fuses.
>> Took it back and they seemed to not believe me til they checked the
>> charge and then tried to blame me for reverse charging it but no
>> freakin way did I swap poles on that charger. Has anyone ever had
>> this experience?
>
> You imagined it.
>
> NiFe cells can do the polarity reversal thing under certain conditions,
> but no NiFe cell has ever been used in a car, and Beaurepaire have
> *never* made or sold NiFe cells.
>

NiCd will also do it. NiMh may, but I've not researched it. LiOn shouldn't

and LiPo is more likely to burst into flame before that would happen.

I doubt his battery changed polarity, one or two of the cells may have 
suffered cell reversal but not enough to make the whole battery change 
polarity.