I_RIDE_DEEP 2nd Gear September 27, 2012 Share September 27, 2012 Start / run the engine and start changing battery is the correct method as:- - prevent ECU lost of memory and out of tune of engine tuning setting - prevent hassle of re-setting your radio & cabin clock Fyi, once car start (Engine running) alternator will take over the battery to provide current to your ride and that's correct operational way and if battery been disconnect & engine die off means alternator is not charging your ride already & it's time to be caution of alternator defective got to send in for WS check !! You are absolutely right. I think most guys who can draw a circuit diagram will understand what u mean. @@@@please don't flame me for agreeing with him guys@@@@ ↡ Advertisement Link to post Share on other sites More sharing options...
KaKiLang 4th Gear September 27, 2012 Share September 27, 2012 When changing battery, positive or negative disconnect first? Link to post Share on other sites More sharing options...
KaKiLang 4th Gear September 27, 2012 Share September 27, 2012 You are absolutely right. I think most guys who can draw a circuit diagram will understand what u mean. @@@@please don't flame me for agreeing with him guys@@@@ I change my battery what bro trafficwatch mentioned and can take your own sweet time, without engine ignition ON, have to quickly change it within a minute as stated in my maintenance manual, only dont touch any of the metal parts of the car with the positive. Nowadays the ECU is so different I bet have to do it differently. Link to post Share on other sites More sharing options...
Seanboi 1st Gear September 27, 2012 Share September 27, 2012 Many shops like to do that, start the engine and change the battery. Nothing happened everybody happy. When something happened, you see what the workshop will do. Taichi time! Anyone knows of any shop that confirm will use another battery as backup, instead of starting the engine? I will patronize the shop next time. Why not get those freelance battery fellas to do for you? There's one merchant in MCF who provides such a service. So far the freelancers I engaged all use backup battery. Alternatively if you wish to DIY, there's this backup battery thing that is available on eBay. I may get one in future because some mechs are very rough with the car. Link to post Share on other sites More sharing options...
Seanboi 1st Gear September 27, 2012 Share September 27, 2012 When changing battery, positive or negative disconnect first? Negative but some ppl bo chup one. Link to post Share on other sites More sharing options...
Fcw75 Hypersonic September 27, 2012 Share September 27, 2012 Why not get those freelance battery fellas to do for you? There's one merchant in MCF who provides such a service. So far the freelancers I engaged all use backup battery. Alternatively if you wish to DIY, there's this backup battery thing that is available on eBay. I may get one in future because some mechs are very rough with the car. Do you mean DACB bro? Yes, will look for him next time. Link to post Share on other sites More sharing options...
KaKiLang 4th Gear September 28, 2012 Share September 28, 2012 Negative but some ppl bo chup one. Thanks, there's a proper procedure in order not frying up the ecu. Link to post Share on other sites More sharing options...
Creativeshoot Neutral Newbie September 28, 2012 Share September 28, 2012 No, engine was still able to start. I knew its dying coz normally it only takes one or 2 crank to start but it now takes 3 to 4 cranks and the cranks are somewhat laborious. However this is not a fool proof method. Previous dead battery has no warning. Just died the next day. Btw battery is $140. 55AH Spare battery in parallel to terminals is normal. Start engine and yank out the terminals is definately not a good way. Learnt from RV that some conti cars CPU need to detect voltage otherwise it will be dead. Better way is spare battery to main lead-in, not terminals. In this case, you reduce the chance of the clip accidentally coming loose while removing the terminals. But not many do this. u all never study electronic or electrical.... parallel la...no prob...furthermore no or low resistance from old battery, so can parallel then series... plus the original autodealer memory of driving computer style still inside no erase...oh come on.. Link to post Share on other sites More sharing options...
Creativeshoot Neutral Newbie September 28, 2012 Share September 28, 2012 Jus figuring a way out for u or other bros in same situation If u ok with ur yearly batt change N feel that it's v difficult Then pls ignore my rubbish Some people rich they feel that it's a waste of time to do all these things I understand Cos I'm very poor some people or infact many people lauff at me...buy a spare batt...i am only driver no passenger..anyway a slender 50-55kg girl plus 5-8kg of battery sure makes ur car very stable also... suspension also balanced... but behind the boot or behind passenger seat..... just bring a 2 head screw driver, green battery or maintenance free battery also same la... then u can save $150 towing fee, or $25 dollars drive and fix with new battery price not included yet..opportunistic loss....people ws gain. Link to post Share on other sites More sharing options...
Creativeshoot Neutral Newbie September 28, 2012 Share September 28, 2012 Start / run the engine and start changing battery is the correct method as:- - prevent ECU lost of memory and out of tune of engine tuning setting - prevent hassle of re-setting your radio & cabin clock Fyi, once car start (Engine running) alternator will take over the battery to provide current to your ride and that's correct operational way and if battery been disconnect & engine die off means alternator is not charging your ride already & it's time to be caution of alternator defective got to send in for WS check !! i used to think like lots of forumers, then i think and reflect on my studies, so this and my previous posting is correct. Link to post Share on other sites More sharing options...
Creativeshoot Neutral Newbie September 28, 2012 Share September 28, 2012 When changing battery, positive or negative disconnect first? connect negative first to ground, so u won't run positive electrons through ur fingers and thru another finger to connect on same terminal.... btw the battery change got manual teach u how to change.. before my post, i haven read former posts...after that..realise..these people have no practical knowledge neither do they care or want to know how to be self sustained..so just my many two cents...have a nice day Link to post Share on other sites More sharing options...
S_cool Neutral Newbie September 28, 2012 Share September 28, 2012 That the correct way to do it, as it saves a lot of trouble. Link to post Share on other sites More sharing options...
KaKiLang 4th Gear September 28, 2012 Share September 28, 2012 connect negative first to ground, so u won't run positive electrons through ur fingers and thru another finger to connect on same terminal.... btw the battery change got manual teach u how to change.. before my post, i haven read former posts...after that..realise..these people have no practical knowledge neither do they care or want to know how to be self sustained..so just my many two cents...have a nice day I got $$$ always workshop do, but sometime battery die suddenly bo pian have to dirty my hands with the most basic ways to best of my knowledge. Mainly monkey see, monkey do. Link to post Share on other sites More sharing options...
TVT Supercharged September 28, 2012 Share September 28, 2012 Negative but some ppl bo chup one. What about connecting a jumper cable to help to start another car? Connect +ve or -ve first? Link to post Share on other sites More sharing options...
Fcw75 Hypersonic September 28, 2012 Share September 28, 2012 Why not get those freelance battery fellas to do for you? There's one merchant in MCF who provides such a service. So far the freelancers I engaged all use backup battery. Alternatively if you wish to DIY, there's this backup battery thing that is available on eBay. I may get one in future because some mechs are very rough with the car. Bro, where to find the backup battery thing? I want buy. Link to post Share on other sites More sharing options...
Rustyz 5th Gear September 28, 2012 Share September 28, 2012 Bro, where to find the backup battery thing? I want buy. Bro this back up thingy that you referring to, is it those kind that can supply enough power to even jump start a car. Thanks Link to post Share on other sites More sharing options...
Yeobh 4th Gear September 28, 2012 Share September 28, 2012 Just PM U Link to post Share on other sites More sharing options...
Yeobh 4th Gear September 28, 2012 Share September 28, 2012 No, it's just device providing 5 to 9 volt DC via either a 12dc battery, 9volt alkaline battery or directly plug to wall plug 230 ac supply. For most the European cars back up is necessary to prevent collected driving data, radio setting , seat setting and keyless codes from being erase. For economical Asia cars they may not have such sophicated data gathering chip in the onboard computer. U can still use the back up device to prevent loss of radio and clock settings. ↡ Advertisement Link to post Share on other sites More sharing options...
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