This might be a dumb question and after working on cars for awhile I should know this but I have a 240sx i've been building and wanted to check the electrical system (dash lights,headlights,ect) but don't have a battery for it yet. I was wondering if I could connect a battey charger to the positive and negative battery cables just to check quickly without causing any problems. Thanks in advance
2007-10-05 18:16:21 · 9 answers · asked by Just keep breathin' 6 in Cars & Transportation ➔ Maintenance & Repairs
Yes absolutely!!
been there/done that many many times at work!!
2007-10-05 18:20:10 · answer #1 · answered by twosmallwheels 2 · 0⤊ 0⤋
burn is right. the battery charger will run high voltage and id bet you find some ac voltage in the wires at the same time. this ac voltage can also do some damage to systems in a car or give you headaches due to a check engine light coming on. the cpu does not really under stand ac voltage, there are some signals that the cpu uses to determine some things like vehicle speed, but this is no where the 16 volts that you could find from a battery charger. but if you leave even a dead battery in the vehicle with the charger connected, the ac voltage will be absorbed by the battery, and dc voltage will drop somewhat also.
2007-10-06 00:15:13 · answer #2 · answered by mdk68gto, ase certified m tech 7 · 0⤊ 0⤋
Sorry i disagree with the other answers.
If you connect a charger direct then the voltage going to the car could be up to 16 volts. This could damage expensive electronic components.
A good charger would not cause this problem, but how do you know the quality of yours?
if there is any doubt just get a second hand battery to sit in the car and connect the charger to this.
The battery would act as a stabilizer and stop excessive current getting to the car.
2007-10-05 20:46:23 · answer #3 · answered by burn 5 · 1⤊ 0⤋
You can use the current of same voltage which has been recommended for your vehicle, from any source i.e battery or charger etc.
2007-10-05 18:30:31 · answer #4 · answered by jaidi 3 · 0⤊ 0⤋
yes it will work ,but you wont get enough amperage to do you any good,about all it will work will be a few lights,i have done this before though,it will help you on certain things,it wont hurt anything,just make sure its not touching anything else,your not the first one to do this,good luck with it.
2007-10-05 18:22:48 · answer #5 · answered by dodge man 7 · 0⤊ 0⤋
Don't do it for long and for sure don't do anything that requires a huge current draw because you can fry stuff by running it too long and not having enough current going to it...
2007-10-05 20:28:35 · answer #6 · answered by cnc_cut 3 · 0⤊ 0⤋
yes.........you will be able to run certain test,s that don,t require high amperage........don,t make any conclusion,s until a battery is installed.
2007-10-05 18:31:19 · answer #7 · answered by slipstream 7 · 0⤊ 0⤋
You're stupid!
2007-10-06 03:53:23 · answer #8 · answered by Anonymous · 0⤊ 0⤋
Sure !!!
2007-10-05 18:21:44 · answer #9 · answered by tooldaddy2003 5 · 0⤊ 0⤋