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Portable car jump starter.
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. |
Portable car jump starter.
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. |
Portable car jump starter.
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. |
Portable car jump starter.
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. -- |
Portable car jump starter.
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Portable car jump starter.
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 |
Portable car jump starter.
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 |
Portable car jump starter.
"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 |
Portable car jump starter.
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. |
Portable car jump starter.
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 |
Portable car jump starter.
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. |
Portable car jump starter.
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 |
Portable car jump starter.
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 |
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