IKnowImLost224 Posted March 18, 2012 Report Share Posted March 18, 2012 I was under my hood and noticed some stuff coming out of the + terminal that I suspected to be acid. So I tested the voltage and got 12.6 volts. Then I tested the amperage with the car running and got no amps from + to -. Yet when I disconnected the kinetik and tried starting the car it still started. Without amperage wouldn't the car not start? Reason I ask is because I lost quite a bit of power in the past month or so and I'm wondering if that's why. Quote Link to comment Share on other sites More sharing options...
will77530 Posted March 18, 2012 Report Share Posted March 18, 2012 ive heard this happens quite a bit with kinetic. Quote Link to comment Share on other sites More sharing options...
RAM_Designs Posted March 18, 2012 Report Share Posted March 18, 2012 Yes, it can read a good voltage but still be useless. You need to have a load tester to put a load on it and see what it does. If it's bad, the voltage will drop quickly down below 11V. Quote Ryan Miskin - owner of RAM Designs I have my PM's turned off, please email at <script data-cfhash='f9e31' type="text/javascript"> /* */</script> 2200+ designs since March 2011... Link to comment Share on other sites More sharing options...
andrew018018 Posted March 18, 2012 Report Share Posted March 18, 2012 i doubt you have no amperage.. normally when a battery is dead it will sit below 12v... and what are you testing your current with, you cant test it with a multimeter Quote My System (in VW golf/Rabbit mk2) (1) Hifonics Brutus 2010D @ 1ohm (1) Hifonics Zeus 440 Mids'nhighs (3) JBL W10Gti subs (2) JBL GTO838 (2) JBL GTO936 (1) run of 3/0 Gauge ofc (1) Ac Delco120ah 850cca battery (front) (1) Ac Delco 45ah 330cca battery (rear) (1)Sony Gt630ui hu 34hz tuning Link to comment Share on other sites More sharing options...
audiofanaticz Posted March 18, 2012 Report Share Posted March 18, 2012 How did you test the amperage? Normally testing amperage has nothing to do with both Pos and Neg terminals. Are you sure you have a meter that can read DC Current? Ive seen people before saying so and so alts are junk barbecue they dont charge, but yet they where using a A/C current clamp meter on a DC current electrical setup... Not all clamp meters can measure DC Current, but most will do A/C and D/C voltage, but only A/C amperage. If the battery has a bad cell it would be a significant drop in resting voltage. The normal size of a battery cell is 2.1 - 2.3 volts, so if the battery was bad, or going bad, your voltage would be around 10volts. More than likely the residue you seen coming out of the battery is corrosion, it happens to good and bad batteries and as nothing to do with the life of the battery or does it say that the battery is taking a Quote Link to comment Share on other sites More sharing options...
profundus-sanus Posted March 18, 2012 Report Share Posted March 18, 2012 there should be 0 amperage going from the positive post to the negative post. that would infer there was a short somewhere would be a HORRIBLE drain on your battery(ie dead in seconds) as stated you need a dc clamp and put a load on the batt with the vehicle off so the alt isn't chargint. Quote Link to comment Share on other sites More sharing options...
IKnowImLost224 Posted March 18, 2012 Author Report Share Posted March 18, 2012 Okay I did not know that about not being able to test current with a multimeter. Is the load tester the free check that like autozone or o reileys has? Quote Link to comment Share on other sites More sharing options...
MrSkippyJ Posted March 18, 2012 Report Share Posted March 18, 2012 yes they will load test your battery, i have no idea how accurate it is though. Quote F150: Stock 2019 Harley Road Glide: Amp: TM400Xad - 4 channel 400 watt Processor: DSR1 Fairing (Front) 6.5s -MMats PA601cx Lid (Rear) 6x9s - TMS69 Link to comment Share on other sites More sharing options...
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