RooTxBeeR Posted October 13, 2015 Report Posted October 13, 2015 So my uncle has had his battery on a charger for days now, and by no means is it a intelligent trickle charger. I refuse to help this guy so I want to let him learn from his mistake. I just don't want his mistake to blow up his battery, then damage my car, or any of my mother's property. At what voltage can a 12v car battery become dangerous when charging? I don't the battery type so if you guys know if it's the same or different between lead cell and agm, I would assume there is a difference though when they both can go faulty. On 11/20/2012 at 8:54 PM, AMI CUSTOMS said: Turned mine up today at a light, guy next to me his steering wheel started moving and he looked over at me like I was a magician lol. On 5/9/2012 at 8:45 PM, skittlesRgood said: fuck the plating. look at what the main metal used is. you could buy unicorn blood plated terminals but if its just covering up dog shit, whats the point On 4/10/2013 at 12:26 PM, mrd6 said: I'll admit, half way through sanding that fiberglass in the rain and cold while I was all itchy I was definitely starting to question why i was doing this haha Soon To Be '04 Ford Escape US Alternator 280A Hairpin D4800 Under the Hood (6) XP3000's in Rear 1/0 SHCA & XS Power 4 runs to back TORK2 kit from Tony @ CE Auto Supply Pioneer DEH-80PRS DD AW6.5 (2) per door *Tweeter Unkown* DD SS4a & C3d (2) SCV4000 @ .5Ohm (2) 15" Sundown Zv5
SnowDrifter Posted October 13, 2015 Report Posted October 13, 2015 Inside a battery you have lead plates, mesh with lead oxide attached, and a pool of aqueous sulfuric acid. When you overchage a battery at too high of a voltage, you cause the electrolyte to begin to bubble. This bubbling action both depletes the electrolyte and can dislodge the lead oxide attached to the mesh. You can replenish the electrolyte by adding distilled water(flooded batts), but damage to the lead oxide screens is permanent and cannot be repaired. Depending on the battery you may have a valve in there designed to open when it's under pressure(both flooded and AGM). Sometimes these valves malfunction and don't allow trapped gas to escape. In this scenario your battery begins to bulge. At this point you have a pressure vessel which can squeeze the electrolyte out of any leaks that form. Now you have an acid spill. Unless you're charging at a stupid dumb high voltage/current, you shouldn't need to worry about a thermal failure. And if you're overcharging it in an enclosed space, you can cause a buildup of hydrogen gas. Kaboom ~~~~~~~~SAY NO TO PHOTOBUCKET~~~~~~~~ Snow's DD-1 tracks here: https://www.stevemeadedesigns.com/board/topic/167433-snows-dd-1-tracks/ My take on OFC vs CCA: https://www.stevemeadedesigns.com/board/topic/110381-things-that-piss-you-off-in-the-car-audio-world/?do=findComment&comment=2461444
SnowDrifter Posted October 13, 2015 Report Posted October 13, 2015 As to what voltage... I kind of depends on temperature, but really anything above 15ish you/re asking for trouble. At 16v it starts to look like a slow simmer ~~~~~~~~SAY NO TO PHOTOBUCKET~~~~~~~~ Snow's DD-1 tracks here: https://www.stevemeadedesigns.com/board/topic/167433-snows-dd-1-tracks/ My take on OFC vs CCA: https://www.stevemeadedesigns.com/board/topic/110381-things-that-piss-you-off-in-the-car-audio-world/?do=findComment&comment=2461444
RooTxBeeR Posted October 13, 2015 Author Report Posted October 13, 2015 Well, it's at just a tad over 16v currently and I park right next to his car. I'm aware of the fume build up, but the vehicle is outside. Thanks for the info man. On 11/20/2012 at 8:54 PM, AMI CUSTOMS said: Turned mine up today at a light, guy next to me his steering wheel started moving and he looked over at me like I was a magician lol. On 5/9/2012 at 8:45 PM, skittlesRgood said: fuck the plating. look at what the main metal used is. you could buy unicorn blood plated terminals but if its just covering up dog shit, whats the point On 4/10/2013 at 12:26 PM, mrd6 said: I'll admit, half way through sanding that fiberglass in the rain and cold while I was all itchy I was definitely starting to question why i was doing this haha Soon To Be '04 Ford Escape US Alternator 280A Hairpin D4800 Under the Hood (6) XP3000's in Rear 1/0 SHCA & XS Power 4 runs to back TORK2 kit from Tony @ CE Auto Supply Pioneer DEH-80PRS DD AW6.5 (2) per door *Tweeter Unkown* DD SS4a & C3d (2) SCV4000 @ .5Ohm (2) 15" Sundown Zv5
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