I have a Black and Decker 450 amp jump starter.

The car battery was dead because the lights were left on. I wanted to
use the car in the morning. I took the battery charger and put it on
the battery, the night before, intending to trickle charge it.

The next morning the car would not start and there was no juice in the
charger.

I am guessing that the jump starters are not intended to trickle
charge, although I don't see why.

On Jan 18, 4:16*pm, Terry wrote:
I have a Black and Decker 450 amp jump starter.

The car battery was dead because the lights were left on. *I wanted to
use the car in the morning. *I took the battery charger and put it on
the battery, the night before, intending to trickle charge it.

The next morning the car would not start and there was no juice in the
charger.

I am guessing that the jump starters are not intended to trickle
charge, although I don't see why.

Its a jump starter, booster, not a charger, and by B&D not known for
quality, buy a 110v charger.

On Jan 18, 5:47 pm, ransley wrote:
On Jan 18, 4:16 pm, Terry wrote:

I have a Black and Decker 450 amp jump starter.

The car battery was dead because the lights were left on. I wanted to
use the car in the morning. I took the battery charger and put it on
the battery, the night before, intending to trickle charge it.

The next morning the car would not start and there was no juice in the
charger.

I am guessing that the jump starters are not intended to trickle
charge, although I don't see why.

Its a jump starter, booster, not a charger, and by B&D not known for
quality, buy a 110v charger.

It is an emergency jumper/pump intended to be kept in your car and
used on the road where there is no 110V

http://www.blackanddecker.com/Produc...roductID=15582

It is pretty handy in the hands of someone that knows how to use it.
I have needed the jump start and the tire pump on the road.

I think it is a good product.

Terry wrote:
On Jan 18, 5:47 pm, ransley wrote:
On Jan 18, 4:16 pm, Terry wrote:

I have a Black and Decker 450 amp jump starter.
The car battery was dead because the lights were left on. I wanted to
use the car in the morning. I took the battery charger and put it on
the battery, the night before, intending to trickle charge it.
The next morning the car would not start and there was no juice in the
charger.
I am guessing that the jump starters are not intended to trickle
charge, although I don't see why.
Its a jump starter, booster, not a charger, and by B&D not known for
quality, buy a 110v charger.

It is an emergency jumper/pump intended to be kept in your car and
used on the road where there is no 110V

http://www.blackanddecker.com/Produc...roductID=15582
....
Which says its output is 450A instant, 300A/5 sec. The latter
translates to roughly 0.4 A-hr which is a spit in the breeze trying to
recharge a fully discharged battery. You basically got one shot to
start a vehicle w/ it -- which, often may be enough.

--

Terry wrote in news:5445465b-c2bb-47e5-ae88-
:

I have a Black and Decker 450 amp jump starter.

One of those little portable battery packs intended to "jump start" cars?
IMO,garbage.

The car battery was dead because the lights were left on. I wanted to
use the car in the morning. I took the battery charger and put it on
the battery, the night before, intending to trickle charge it.

Which battery? the CAR battery,or the jump-start pack's battery?

The next morning the car would not start and there was no juice in the
charger.

I am guessing that the jump starters are not intended to trickle
charge, although I don't see why.





try reading the manual for that product.(the "jumpstarter")

Also,letting your car battery get drained completely can kill it or shorten
it's life considerably.

--
Jim Yanik
jyanik
at
kua.net

Terry wrote in
:

On Jan 18, 5:47 pm, ransley wrote:
On Jan 18, 4:16 pm, Terry wrote:

I have a Black and Decker 450 amp jump starter.

The car battery was dead because the lights were left on. I wanted
to use the car in the morning. I took the battery charger and put
it on the battery, the night before, intending to trickle charge
it.

The next morning the car would not start and there was no juice in
the charger.

I am guessing that the jump starters are not intended to trickle
charge, although I don't see why.

Its a jump starter, booster, not a charger, and by B&D not known for
quality, buy a 110v charger.

It is an emergency jumper/pump intended to be kept in your car and
used on the road where there is no 110V

http://www.blackanddecker.com/Produc...s.aspx?Product
ID=15582

It is pretty handy in the hands of someone that knows how to use it.
I have needed the jump start and the tire pump on the road.

I think it is a good product.




it's garbage.
all it is is a 12v,19 amp-hour gel cell in a fancy package.
They sulfate if not kept float charged,and then will not accept or hold a
charge.Keep it in your car,and it will degrade and not work when you need
it. Can you even charge it when it's in your car?
(BTW,I couldn't even view or DL the user manual from the B&D or DeWalt
sites.)

You can buy a better 12v tire pump from Harbor Freight for $26,it plugs
into your cig lighter. (a recently new product) 96068-1VGA ,the others are
junk. It was on sale at my local HF store for $18.

--
Jim Yanik
jyanik
at
kua.net

On Jan 20, 12:25*am, "Stormin Mormon"
wrote:
I've wondered about those. If you clamped the clamps to the car battery, and
then plug in the internal charger (or plug in the charge plug to the jump
pack) it seems like it should charge your car battery overnight.

Makes me wonder if the car battery froze overnight, thus killing it
completely?

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

"Terry" wrote in message

...
I have a Black and Decker 450 amp jump starter.

The car battery was dead because the lights were left on. *I wanted to
use the car in the morning. *I took the battery charger and put it on
the battery, the night before, intending to trickle charge it.

The next morning the car would not start and there was no juice in the
charger.

I am guessing that the jump starters are not intended to trickle
charge, although I don't see why.

Read the Manual why do men fail at this

"Stormin Mormon" wrote in
:

I've wondered about those. If you clamped the clamps to the car
battery, and then plug in the internal charger (or plug in the charge
plug to the jump pack) it seems like it should charge your car battery
overnight.

you could buy a decent battery charger for less.

Makes me wonder if the car battery froze overnight, thus killing it
completely?


those "jumpstarters" are just a 12v 19A-H gel cell;how long do you think
they hold a charge after they are pulled off the mains?


--
Jim Yanik
jyanik
at
kua.net

On Jan 18, 5:16*pm, Terry wrote:
I have a Black and Decker 450 amp jump starter.

The car battery was dead because the lights were left on. *I wanted to
use the car in the morning. *I took the battery charger and put it on
the battery, the night before, intending to trickle charge it.

The next morning the car would not start and there was no juice in the
charger.

I am guessing that the jump starters are not intended to trickle
charge, although I don't see why.

As many have already replied, these devices will not charge a battery.

In addition (in my experience) they will jump a weak battery, but may
have trouble with a cold, completely dead battery. I've used my HF
JumpStart numorous times to jump various vehicle where we at least got
a click or 2 out of the starter solenoid, but when my son left the
lights on overnight on a very cold night, the JumpStart device did not
work. One shot with jumper cables and another vehicle and the dead car
turned right over.

On Mon, 21 Jan 2008 10:48:05 -0500, "Stormin Mormon"
wrote:

Hmm. Is that like "fruit flies like a bannana" where we have to try to
figure out the punctuation?

That reminds me of something I saw on a box once, "do not drop this
side up". No punctuation.

How do you drop something up (and only one side too)?
--
Mark Lloyd
http://notstupid.laughingsquid.com

"All your western theologies, the whole mythology of them,
are based on the concept of God as a senile delinquent."
-- Tennessee Williams

On Mon, 21 Jan 2008 13:07:57 -0800 (PST), DerbyDad03
wrote:

On Jan 18, 5:16*pm, Terry wrote:
I have a Black and Decker 450 amp jump starter.

The car battery was dead because the lights were left on. *I wanted to
use the car in the morning. *I took the battery charger and put it on
the battery, the night before, intending to trickle charge it.

The next morning the car would not start and there was no juice in the
charger.

I am guessing that the jump starters are not intended to trickle
charge, although I don't see why.

As many have already replied, these devices will not charge a battery.

In addition (in my experience) they will jump a weak battery, but may
have trouble with a cold, completely dead battery. I've used my HF
JumpStart numorous times to jump various vehicle where we at least got
a click or 2 out of the starter solenoid, but when my son left the
lights on overnight on a very cold night, the JumpStart device did not
work. One shot with jumper cables and another vehicle and the dead car
turned right over.

If used like they are intended, I think they are a great thing to have
in an emergency. I have used mine to prevent me from being stranded
on the side of the road more than once.

The tire pump allowed me to add air to a tire and drive it to the
shop. It saved me from changing a tire and only took 5 min to get
going again.

I would rather have one and not need it, than to need one and not have
it.

Terry wrote in
:

On Mon, 21 Jan 2008 13:07:57 -0800 (PST), DerbyDad03
wrote:

On Jan 18, 5:16*pm, Terry wrote:
I have a Black and Decker 450 amp jump starter.

The car battery was dead because the lights were left on. *I wanted to
use the car in the morning. *I took the battery charger and put it on
the battery, the night before, intending to trickle charge it.

The next morning the car would not start and there was no juice in the
charger.

I am guessing that the jump starters are not intended to trickle
charge, although I don't see why.

As many have already replied, these devices will not charge a battery.

In addition (in my experience) they will jump a weak battery, but may
have trouble with a cold, completely dead battery. I've used my HF
JumpStart numorous times to jump various vehicle where we at least got
a click or 2 out of the starter solenoid, but when my son left the
lights on overnight on a very cold night, the JumpStart device did not
work. One shot with jumper cables and another vehicle and the dead car
turned right over.

If used like they are intended, I think they are a great thing to have
in an emergency. I have used mine to prevent me from being stranded
on the side of the road more than once.

The tire pump allowed me to add air to a tire and drive it to the
shop. It saved me from changing a tire and only took 5 min to get
going again.

I would rather have one and not need it, than to need one and not have
it.



how often do you charge it? how long does it hold a useable charge?

--
Jim Yanik
jyanik
at
kua.net

DerbyDad03 writes:

As many have already replied, these devices will not charge a battery.

They will partially recharge a pretty flat battery.

I once left some lights on in my car. When I went to start it, it
wouldn't turn over at all. I didn't have a commercial "jump start"
battery pack, but I *did* have a charged 12 V 10 Ah gell cell sitting
around. I took that out to the car, connected it to the car battery,
and waited 10 minutes or so. At the end of that, the car started.

Now, there's no way the little 10 Ah battery could deliver enough
starting current on its own, particularly since its connection to the
car was via some rather wimpy cables. But over 10 minutes, it
transferred enough energy to the car's own battery to start the car.

You're never going to transfer all the energy in the gell cell this way,
because its voltage drops while the car battery voltage rises, and
eventually they'll reach equilibrium with a substantial amount of energy
still left in the gell cell. But what did transfer was enough.

(I have seen special charging cords that seem to contain a voltage
booster for charging one 12 V battery from another. But I just used
plain wires.)

Of course, this only works if the car's own battery will still take a
charge. If it has died, not merely been discharged, you need a second
battery big enough to start a car on its own, and jumper cables heavy
enough to carry the current needed to do that.

Dave