purplesyrup Posted February 11, 2013 Report Share Posted February 11, 2013 What battery? Same one for 3 years? After replacing the alternator and still having an electrical problem...the electrician said you're good to go?....hmmm You didn't rip out stock wires or anything did you? Might be worth posting pics/vid. the battery has been replaced at least once a year. it was replaced 3 months ago. no wires have been removed. if i get a chance i will get some pictures its raining right now. >what year make andmodel? its 2001 chevy silverado 2500HD My neighbor has the same truck and same problem, are you my neighbor ? lol He's the ghost!!!!! Thats a good point, ghosts often drain batteries to become more powerful, that has to be the problem Problem solved lol Link to comment Share on other sites More sharing options...
purplesyrup Posted February 11, 2013 Report Share Posted February 11, 2013 What battery? Same one for 3 years? After replacing the alternator and still having an electrical problem...the electrician said you're good to go?....hmmm You didn't rip out stock wires or anything did you? Might be worth posting pics/vid. the battery has been replaced at least once a year. it was replaced 3 months ago. no wires have been removed. if i get a chance i will get some pictures its raining right now. >what year make andmodel? its 2001 chevy silverado 2500HD My neighbor has the same truck and same problem, are you my neighbor ? lol He's the ghost!!!!! is it raining?! lol no its sunny out Link to comment Share on other sites More sharing options...
Bradprobert Posted February 11, 2013 Author Report Share Posted February 11, 2013 What part do you need to see pictures of? it looks like its clearing up. [sharedmedia=garage:vehicles:2223] 4th-order under rear seat build log: http://www.stevemeadedesigns.com/board/topic/165708-4th-order-under-rear-seat-chevy-extended-cab/#entry2410477 SD, thank for the input. I would have replied earlier, but I was measuring the output of my amp with a yardstick . . . Link to comment Share on other sites More sharing options...
Wicks Posted February 11, 2013 Report Share Posted February 11, 2013 Sounds like you have a DMM that measures current draw. Disconnect one of your battery cables and put the DMM inline with the battery. Make sure you're on DC current and not AC. Measure the draw on the battery with the vehicle completely off and doors/hood/trunk closed so there are no lights on or anything. This post sent with 100% recycled electrons. 2004 BMW M3Mechman 280A 2 - XS Power XP30001 - XS Power D375 500F of Maxwell SuperCaps (soon to be 1000F) iPadMini2Dash mounted O-scopeAudison bitOne (Remote DRC MP) Highs Amp - PPI Art A404 Hertz HSK130 (HSK165 waiting...) DC Audio DC9.0K 2- DC Audio XL12m2LEGAL - 147.3dB @ 41Hz OUTLAW - 150.2dB @ 45Hz OUTLAW - 145.7dB @ 30Hz JUNE 2014 SOTM WINNER 2014 COLORADO PEOPLE'S CHOICE WINNER SOTM BUILD:http://www.stevemeadedesigns.com/board/topic/141656-wicks-e46-m3-build-bass-turbo-button-and-a-big-new-addition/page-68#entry2802026 Link to comment Share on other sites More sharing options...
Bradprobert Posted February 11, 2013 Author Report Share Posted February 11, 2013 Sounds like you have a DMM that measures current draw. Disconnect one of your battery cables and put the DMM inline with the battery. Make sure you're on DC current and not AC. Measure the draw on the battery with the vehicle completely off and doors/hood/trunk closed so there are no lights on or anything. i tried this and found zero current draw :/ bummer. im really leaning towards a bad alternator [sharedmedia=garage:vehicles:2223] 4th-order under rear seat build log: http://www.stevemeadedesigns.com/board/topic/165708-4th-order-under-rear-seat-chevy-extended-cab/#entry2410477 SD, thank for the input. I would have replied earlier, but I was measuring the output of my amp with a yardstick . . . Link to comment Share on other sites More sharing options...
Raptorman Posted February 11, 2013 Report Share Posted February 11, 2013 Turn the truck on, DMM the battery with the DC setting. What does it read? 1996 GMC Sonoma Four Fi BTL Neo 18's In 2:1 6th Order Bandpass 2 Ampere 5k's @ .5 TEAM FI TEAM #LITHIUMCANTDEMO On 10/20/2013 at 0:37 AM, KillaCam said: Fucking with a Prius driver is like making fun of a disabled kid. Pussies. Link to comment Share on other sites More sharing options...
Wicks Posted February 11, 2013 Report Share Posted February 11, 2013 Sounds like you have a DMM that measures current draw. Disconnect one of your battery cables and put the DMM inline with the battery. Make sure you're on DC current and not AC. Measure the draw on the battery with the vehicle completely off and doors/hood/trunk closed so there are no lights on or anything. i tried this and found zero current draw :/ bummer. im really leaning towards a bad alternator Is the DMM capable of measuring milli-amps? What brand/model is it? You need to have some amount of current draw from your vehicle's CPU and whatnot, although it may be small enough that a normal DMM won't show it.... What is the battery's resting voltage (vehicle off)? What is the charging voltage with the vehicle running? This post sent with 100% recycled electrons. 2004 BMW M3Mechman 280A 2 - XS Power XP30001 - XS Power D375 500F of Maxwell SuperCaps (soon to be 1000F) iPadMini2Dash mounted O-scopeAudison bitOne (Remote DRC MP) Highs Amp - PPI Art A404 Hertz HSK130 (HSK165 waiting...) DC Audio DC9.0K 2- DC Audio XL12m2LEGAL - 147.3dB @ 41Hz OUTLAW - 150.2dB @ 45Hz OUTLAW - 145.7dB @ 30Hz JUNE 2014 SOTM WINNER 2014 COLORADO PEOPLE'S CHOICE WINNER SOTM BUILD:http://www.stevemeadedesigns.com/board/topic/141656-wicks-e46-m3-build-bass-turbo-button-and-a-big-new-addition/page-68#entry2802026 Link to comment Share on other sites More sharing options...
Autruche Posted February 11, 2013 Report Share Posted February 11, 2013 Unhook the battery cables from the battery. Set your DMM to check resistance and hook it up to the battery cables and note the resistance. Remove the positive lead off of the alternator and check resistance. If it goes way up, then it is your alternator. If not, start pulling fuses out one by one and see if the resistance changes. If you pull a fuse and the resistance goes way up, then you are losing power through that circuit. Cross reference with the fuse panel to find out what each fuse corresponds to. Keep in mind that most cars have two fuse panels, on under hood, one inside. Resistance with the car off and all closed up should be between 50 and 150 ohms. My car sits at ~118 ohms during this testing. It's not the most accurate way of testing it out, but it is a start. How long does it take for the battery to go from fully charged to dead when you aren't driving it? Need Test Tones/Sine Waves? Click Here!My Saab 9000 build1993 Saab 9000 Aero 5spdPioneer - Zapco - Hifonics - Sundown Audio - O2 Audio - RE AudioJust Say No To Rear SpeakersJust Say No To CCA WireReal Men Drive StickHit me up on Facebook, if you want Link to comment Share on other sites More sharing options...
Bradprobert Posted February 11, 2013 Author Report Share Posted February 11, 2013 Sounds like you have a DMM that measures current draw. Disconnect one of your battery cables and put the DMM inline with the battery. Make sure you're on DC current and not AC. Measure the draw on the battery with the vehicle completely off and doors/hood/trunk closed so there are no lights on or anything. i tried this and found zero current draw :/ bummer. im really leaning towards a bad alternator Is the DMM capable of measuring milli-amps? What brand/model is it? You need to have some amount of current draw from your vehicle's CPU and whatnot, although it may be small enough that a normal DMM won't show it.... What is the battery's resting voltage (vehicle off)? What is the charging voltage with the vehicle running? the smallest it can read is at the 2mA setting if there was any it was less than that. not sure what brand it is but it's yellow and a very common one at lowes, not to mention it's fairly old. The battery's resting voltage is ~13.6 the charging voltage is ~16.8 The reason i believe its the alternator is because i have a battery tender that maintains the battery, works very well till you run over it if i do not use it and not drive the truck regularly the battery looses charge. if i drive the truck regularly its fine, which contradicts the alt being a problem. [sharedmedia=garage:vehicles:2223] 4th-order under rear seat build log: http://www.stevemeadedesigns.com/board/topic/165708-4th-order-under-rear-seat-chevy-extended-cab/#entry2410477 SD, thank for the input. I would have replied earlier, but I was measuring the output of my amp with a yardstick . . . Link to comment Share on other sites More sharing options...
Carbon Posted February 11, 2013 Report Share Posted February 11, 2013 Battery isolator /thread lol but seriously thats weird... Link to comment Share on other sites More sharing options...
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