Charging Battery ?

[gr8vet]

OK, Left the dang Passport on, for the 8th time I guess, battery is DEAD. Hooked up charger, but these new chargers are looking for some type of voltage I guess, but it will not charge. Charger does work on good battery, go figure. Question, anyway to trick the charger into starting on the dead battery? Car is tucked deep in basement and will be a PITA to even try to get a jumper cable to it.

Thanks
tt

 

[DWncchs]

I just hook another battery in parallel. Can you get the battery out or borrow somebody's jumper battery or remove a battery from one of your other cars ?

edit-if you can't get close rig up 1 of your 50' extension cords or use a roll of wire to parallel 12 volts from 1 of your other cars battery to the dead battery until the charger picks up polarity. If you charge on low you could even leave the charger on the long end of the extension cord.

 

[mrvette]

I left the stupid Garmin lighter supply plugged into the wife's Miata after a trip....

battery dead....which is why ALL cig lighter sockets are to be wired to the ignition/accessory on the camper now....

and to be changed on the Miata....

which brings to mind...why in hell they ever wire them to the battery direct and NOT through the ign switch in the first place???

:hissyfit:

 

[DWncchs]

I left the STUPID Garmin lighter supply plugged in !!!!!!!!

Gene are you really blaming the Garmin ? Choices , most vehicles give us choices , switched or unswitched. Imagine everyone driving gray VW bugs. Have a couple beers :mobeer: and wire it the way YOU want it ,put in a master shutoff so if that stupid Garmin forgets to unplug itself.:harhar:

 

[mrvette]

I left the STUPID Garmin lighter supply plugged in !!!!!!!!

Gene are you really blaming the Garmin ? Choices , most vehicles give us choices , switched or unswitched. Imagine everyone driving gray VW bugs. Have a couple beers :mobeer: and wire it the way YOU want it ,put in a master shutoff so if that stupid Garmin forgets to unplug itself.:harhar:

I know, just pissed that the thing even had a little LED on it....oh well...

still can't imagine why cig lighters are always wired to the fixed 12+ on every car I ever seen....

:cussing:

 

[gr8vet]

Thanks guys,

Wound up taking an old lawn mower battery and touching it to battery/charger and viola. I miss my old craftsman charger, didn't need to see any voltage, it just worked, for many a year.

Forth time I have drained this one to 0, three years + old, probably another $100 getting ready to leave the wallet. :rain:

tt

 

[SmokinBBC]

ea...probably a new bat in your future.

I bought a charger with a jump start function a few years back....works great and not much more in price than a plain old charger.

 

[DWncchs]

Thanks guys,

Wound up taking an old lawn mower battery and touching it to battery/charger and viola. I miss my old craftsman charger, didn't need to see any voltage, it just worked, for many a year.

Forth time I have drained this one to 0, three years + old, probably another $100 getting ready to leave the wallet. :rain:

tt

I still have my old ones , thank god I hate all this new fangled crap designed to keep the non-mechanics safe. I have use one like your new one but when you touched the lawn mower battery were you able to then just walk over and attach to the dead battery ? Or did you have to keep a connection with the lawn battery until the dead battery picked up some charge ?

 

[DWncchs]

I know, just pissed that the thing even had a little LED on it....oh well...

still can't imagine why cig lighters are always wired to the fixed 12+ on every car I ever seen....

:cussing:

Way back you just used it to light a cigarette , nowadays its a power tap. I do like the direct wire one on my Saturn if I'm using my computer outside a bar so if a cop pulls up. Figure that one out ! :thumbs:

 

[SIXFOOTER]

I did some surgery on a golf cart charger a while back, there is a relay in there that keeps the leads from sparking if they are touched together when not connected to a battery. you can jump it out and make it work like the old ones:smash:

 

[68/70Vette]

OK, Left the dang Passport on, for the 8th time I guess, battery is DEAD. Hooked up charger, but these new chargers are looking for some type of voltage I guess, but it will not charge. Charger does work on good battery, go figure. Question, anyway to trick the charger into starting on the dead battery?

I think when a battery is DEAD, it has a high impedance and it won't take very much, if any, recharge current until you can get a voltage to build up on the terminals. Also, I've read that if you take a perfectly good new battery and completely discharge it to where it is completely dead, completely flat, and then recharge it, it will only have about 2/3 of it's original new capacity. This seems about right with my experience with batteries. If it's gone dead more than once, it's heading towards being very unreliable about keeping a charge (my opinion based on experience). I have a large Sears battery charger that's big enough to start a car almost by itself. It didn't cost much and I've had it for 30 years. It has a high voltage quick charge setting for dead batteries.

 

[Ozzy]

OK, Left the dang Passport on, for the 8th time I guess, battery is DEAD. Hooked up charger, but these new chargers are looking for some type of voltage I guess, but it will not charge. Charger does work on good battery, go figure. Question, anyway to trick the charger into starting on the dead battery? Car is tucked deep in basement and will be a PITA to even try to get a jumper cable to it.

Thanks
tt

I think you need one of these: http://www.prioritystart.com/