On Oct 7, 10:06*am, digger odell wrote:
On Oct 7, 8:54*am, ransley wrote:





On Oct 6, 9:55*pm, digger odell wrote:

On Oct 6, 9:55*pm, "Stormin Mormon"

wrote:
My understanding is that too low is no big deal. Too high can "boil" the
moisture out of the batteries.

Where did you learn this wisdom? If I'm wrong, I'd sure like to get the
correct facts.

--
Christopher A. Young
Learn more about Jesus
*www.lds.org
.

"charlie" wrote in message

...

you can cause a fire if it's too low. there is no danger if it's too high.
see if you can google for the manual or specs on it.

I found the transformer listed on B&D's web but NO specs. *Sounds like
the transformer wires would simply heat up if amperage was too low so
I could simply switch to to the higher mA setting????- Hide quoted text -

- Show quoted text -

12v nicad is not 12v. A 1.2v Nicad is dead at 1.2v and charged at near
1.35v. hey have an amp rating and you must meet it to fully charge. A
C cell might be 1.2-1.8a so 10 C cells could use a 14v 2a charger that
senses peak voltage to shut off, you can measure peak V by voltage
drop with a digital battery meter, its is also when batteries start to
heat up converting electrical energy to mechanical vibrating and
cooking the battery to death. Or go see what is sold or call a repair
center.

I'm a little bewildered by saying that a 12v nicad is not 12v in view
of the fact that the sweeper requires 12vdc to operate.

But I gather from what you say that an under-supply of amps (e.g.
100mA) would not allow the unit to fully charge and no voltage drop
would occur. *An over-supply, on the other hand, would cook the
battery before any voltage drop would occur.

Out of curiosity, would the same be true for a transformer which only
supplied 10 vdc rather than 12vdc to the 12vdc rechargeable battery?

digger- Hide quoted text -

- Show quoted text -

A 12v car battery is 100% charged at about 12.8v, and near dead at
12v, but needs 13.3 to saturate cells on your 12v car, its the same
with alot af batteries, each nicad needs 13+v to be fully charged, 10v
wont do anything as at 12v its nearly dead and fully discharged, a low
amp charger will just take alot longer but you need volts 14 is good.