Friendstar Supercharged January 2, 2012 Share January 2, 2012 Hi all, I just bought a pair of jumpstart cables from JB GIANT. no brand one. it says 400Amp. will it work to jumpstart normal jap cars? anyone successfully tried jumpstarting using cables before? ↡ Advertisement Link to post Share on other sites More sharing options...
SimonTan 2nd Gear January 2, 2012 Share January 2, 2012 Simple. Switch off all electrical equipment in the weak car. Off the aircon, radio,etc. Just hooked up the two batteries together in parallel. + to +, - to -. No damage to both cars. Start the weak car. If still cannot start, that means the good car battery is also koyak. The good car can start engine and rev the engine to charge both car batteries for 1mins. Start the weak car. Once started the weak car, let it idle. Remove the cables. Rev the weak car or drive for a long distance. Link to post Share on other sites More sharing options...
Caravan 5th Gear January 2, 2012 Share January 2, 2012 Successfully jumpstarted many times. Problem is the cables you bought is it too thin and pose too high a resistance? Link to post Share on other sites More sharing options...
Mits_jc 5th Gear January 2, 2012 Share January 2, 2012 Helped jump start before, both on the giving and receiving end. 1. Live car should be running 2. + of live to + of dead, - of live to - of dead (some may advice against directly connecting to the - of dead, but instead to a grounding point on the dead car) 3. Fast idle by revving live car for ~ 1min 4. Try to start dead car, should revive. 5. Remove cables in reverse order. Link to post Share on other sites More sharing options...
Friendstar Supercharged January 2, 2012 Author Share January 2, 2012 Successfully jumpstarted many times. Problem is the cables you bought is it too thin and pose too high a resistance? visual inspection of the cables? or is there some specs to determine? Link to post Share on other sites More sharing options...
Nzy Twincharged January 2, 2012 Share January 2, 2012 Simple. Switch off all electrical equipment in the weak car. Off the aircon, radio,etc. Just hooked up the two batteries together in parallel. + to +, - to -. No damage to both cars. Start the weak car. If still cannot start, that means the good car battery is also koyak. The good car can start engine and rev the engine to charge both car batteries for 1mins. Start the weak car. Once started the weak car, let it idle. Remove the cables. Rev the weak car or drive for a long distance. Should start the other car first before trying to start the weak car. Link to post Share on other sites More sharing options...
5936 1st Gear January 2, 2012 Share January 2, 2012 almost follow these step i ill try for first crank after jumper connection. if cannot then use step 2 to charge up te weak battery fr 3-5 mins. Link to post Share on other sites More sharing options...
Thaiyotakamli Supersonic January 2, 2012 Share January 2, 2012 Should start the other car first before trying to start the weak car. agree, or else the starter car batt will be badly affected Link to post Share on other sites More sharing options...
Tigershark1976 Turbocharged January 2, 2012 Share January 2, 2012 According to 1 member here call "Dumb".... even those thin red and black wire can jump start a car.... u may want to ask him what kind of spell he use during jumpstart... http://www.mycarforum.com/index.php?showto...50&start=50 Link to post Share on other sites More sharing options...
Neutralsg 5th Gear January 2, 2012 Share January 2, 2012 Hi all, I just bought a pair of jumpstart cables from JB GIANT. no brand one. it says 400Amp. will it work to jumpstart normal jap cars? anyone successfully tried jumpstarting using cables before? Yes & No (depending on situation) but no longer rely on such cables since I got a Jumpstart Battery Booster which comes with appropriate cable/clamp. Link to post Share on other sites More sharing options...
Beei 1st Gear January 2, 2012 Share January 2, 2012 Hi all, I just bought a pair of jumpstart cables from JB GIANT. no brand one. it says 400Amp. will it work to jumpstart normal jap cars? anyone successfully tried jumpstarting using cables before? Jumpstart other people car before.. Their car normal or not, i not sure, but is made in Japan.. Only got one time one lady connect the black terminal to the red terminal, and saw sparks.. Link to post Share on other sites More sharing options...
SIM37 2nd Gear January 2, 2012 Share January 2, 2012 I've even jump started a car using those wire fences type of cable thickness. Link to post Share on other sites More sharing options...
Munch003 2nd Gear January 2, 2012 Share January 2, 2012 The thickness of the wires does play apart. Especially if the car being started is complety flat, the current draw is so high that you may need 2 sets of jumper cables to get the car started. with 1 cable it could not turn over even 1 revolution before the starter stalls. Link to post Share on other sites More sharing options...
Kyojin 1st Gear January 3, 2012 Share January 3, 2012 easy to jumpstart. 1. Connect red cable first. Battery to battery 2. Connect the black cable last. Good battery to body/engine of flat car 3. Start up good car 4. Rev good car (about 2k rpm) and hold it there 5. Start up flat car. PRESTO. 6. Disconnect black cable first 7. Remove red cable Link to post Share on other sites More sharing options...
SimonTan 2nd Gear January 3, 2012 Share January 3, 2012 agree, or else the starter car batt will be badly affected I totally disagree that the good(starter) car battery will be badly affected. What kind of affect will it suffer? In basic electrical theory, hooking up the two batteries in parallel, simple means that the good battery is providing the juice to the the weak car just for ONE time starting of the engine. After the weak car has started, immediately disconnect the jump cables. Both cars will not suffer any effect at all. There will not be any voltage or current spike that will cause damage to both cars. Unless the weak car has engine problem, and needs multiple cranking to start the engine, in that situation it might drain out the good car battery after a few unsuccesful tries. Link to post Share on other sites More sharing options...
Chrispie 5th Gear January 3, 2012 Share January 3, 2012 my former car needed a jump start before.. i went to those diy shop and got a cable, and another car was kind enuff to help.. but when the connection was done, and we were trying to start my car.. the cable started to smoulder.. and i didnt wanna damage the other car, had to stop. Eventually AA came and did the job. Until now i also dont know why. but AA guy said that the cable does plays a part. If it cannot handle the current, it will smoulder like what happened. Link to post Share on other sites More sharing options...
Beehive3783 Turbocharged January 3, 2012 Share January 3, 2012 my former car needed a jump start before.. i went to those diy shop and got a cable, and another car was kind enuff to help.. but when the connection was done, and we were trying to start my car.. the cable started to smoulder.. and i didnt wanna damage the other car, had to stop. Eventually AA came and did the job. Until now i also dont know why. but AA guy said that the cable does plays a part. If it cannot handle the current, it will smoulder like what happened. The thickness of the jumpstart cable directly affects the current rating. Thicker cable = Lesser electrical resistance = Able to handle higher current. Higher electrical resistance = Higher heat generated = Higher risk of cheap/thin jumpstart cables smouldering/melting on the wire insulation and clips. Link to post Share on other sites More sharing options...
K3037 Neutral Newbie January 3, 2012 Share January 3, 2012 Can anyone recommend a good jumper booster and price? No need for another vehicle for a jump-start. Thanks. ↡ Advertisement Link to post Share on other sites More sharing options...
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