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Re: Dangers of jumping TCH
schmidtj — I respectfully disagree. The link you give does not support your claim either — note their low Typical Drain currents compared with 10 A (10 000 mA). Their total charge capacity (in ampere-hours) may be high enough, but these batteries cannot supply a large current like 10 amperes while at the same time maintaining their voltage close to 12 volts. Their internal resistance is far too high. By the way, the TCH's absorptive-glass-mat type of 12-V battery does not have a high peak current rating, and so should never be used for jump starting another car.
Stan |
Re: Dangers of jumping TCH
Originally Posted by SPL
(Post 130373)
schmidtj — I respectfully disagree. The link you give does not support your claim either — note their low Typical Drain currents compared with 10 A (10 000 mA). Their total charge capacity (in ampere-hours) may be high enough, but these batteries cannot supply a large current like 10 amperes while at the same time maintaining their voltage close to 12 volts. Their internal resistance is far too high. By the way, the TCH's absorptive-glass-mat type of 12-V battery does not have a high peak current rating, and so should never be used for jump starting another car.
Stan What if I take my 12 volt battery pack (made of of D cells) and attach it to the dead 12 volt battery. Let the battery pack dump itself into the dead battery to it's own self depletion. I "suspect" there is a good chance the 12 volt battery would now have enough capacity and amperage to start the car. Assuming the 12 volt battery is only discharged and not defective. In effect I use my battery pack to "charge" the 12 volt battery and not directly power the TCH computer and inverter. |
Re: Dangers of jumping TCH
schmidtj — You could try looking at
http://batteryuniversity.com/ or http://www.batterystuff.com/tutorial_battery.html for starters. Stan |
Re: Dangers of jumping TCH
Originally Posted by SPL
(Post 130373)
schmidtj — I respectfully disagree. The link you give does not support your claim either — note their low Typical Drain currents compared with 10 A (10 000 mA). Their total charge capacity (in ampere-hours) may be high enough, but these batteries cannot supply a large current like 10 amperes while at the same time maintaining their voltage close to 12 volts. Their internal resistance is far too high. By the way, the TCH's absorptive-glass-mat type of 12-V battery does not have a high peak current rating, and so should never be used for jump starting another car.
Stan I need to see if I can come up with some small battery pack , to use for jump start my TCH just in case. NIMH and NICD cells are more than enough but they don't hold full charge for too long and in few months they will not have enough charge left, also the voltage has to be higher than 12 V , probably more than 13 for electricity to flow but I need to check how much more than 13v is safe. I think TCH 12 v system is rated at less than 100 amps, so directly cranking the starter with it is not a good idea, but you could charge the other car's battery with TCH for few minutes, then disconnect the cables and crank the other engine then. |
Re: Dangers of jumping TCH
what about those things that you just plug into the 12v DC to charge up a car. Would those work the same way?
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Re: Dangers of jumping TCH
Originally Posted by Trekkie
(Post 130503)
what about those things that you just plug into the 12v DC to charge up a car. Would those work the same way?
http://keyon.en.alibaba.com/product/...p_Starter.html |
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