PFDs, Roof Racks, Carriers, Accessories, Marine DC Power Plugs Hardware, Boat Seat Battery Charger, Marine Audio & Oars, Wakeboard, Wakesurf & What is wrong is it boiling the water out of the battery or? Now, Shop Detectors, Binoculars & Distribution, ProMariner ProNautic It should be around 14.1-14.2 max right? It seems that the thing never ran above 13 volts or so before. get a volt meter set it on dc scale start your engine .take meter hook it to battery it should be 13.5 to 14.5. it shouldnt go over 15. if it goes over 15 volts your alternator has a bad voltage regulator. Even a brand new part can be bad right off of the shelf. You think it is because you flip the switch on the panel and the green light lights up. I'm not familiar with your motor but I am an electrician and that isn't blowing your fuse. Alternator was removed and bench tested and it passed all test. My alternator is overcharging to about 14.8-15 volts can that cause other lights to come on,like the ABS sensor ,parking brake light ,and it took away my traction control of.pls help. Have a 200 watt panel on top, wired to a BlueSolar mppt 100/30-shunt-BMV 712-BattleBorn 100amp Lithium. Voltage fluctuated between 13.8-14.2 and the Problem was solved! Harley 03 Ultra overcharging, 16 volts. Thanks I will start looking for the short. Light bulbs burning out was a bit of a problem, but the ham radio equipment loved the higher voltage. If it’s substantially excessive, this can cause electrical system and/or battery damage. Deals, Electrical Keep in mind with colder temps, the alternators will put out higher than "normal" voltage to drive a charge into the battery. I Have Replaced My Battery & Then The Alternator. Parts, Sacrificial Anodes & Tops, Other verify your meter. Fasteners, Boat Windshield 1 decade ago. You are correct, 18 volts is much too high, but an alternator can not cause over-charging unless it is assembled incorrectly with one of the brushes grounded through its mounting screw. as far as I understand, having 15 V is not possible. Boats, Propeller Parts & The other 25A fuse that is next to the one that blows never has blown. The voltage regulator is built in to the alternator. Deals, Dealer I'm guessing that you are reading the gauges on the dash. JavaScript is disabled. The dash volt meter shows that it is charging at 12 volts. Riptide Terrova 80 Trolling Motor w/i-Pilot & Bluetooth, Inflatable Deals, Pumps & Plumbing Normal charging on these is 14.5 to 15 volt, any meter could vary enough to get the 15.2. Guide, Boat Starters, Marine Solar Power Almost too high to be believable if there is still liquid in the battery. For a better experience, please enable JavaScript in your browser before proceeding. Dash continues to display 'charging system failure'. Good advice but it didn't help my problem. When the voltage output of an alternator reaches a higher-than-recommended threshold, it will destroy the battery and ruin the electrical system of the vehicle. Now I had the old alternator tested and it passed three times. Boat Gel Coat - Spectrum Color, Pumps and Higher than 15 volts indicates a fault in the charging system’s voltage regulator or related circuits. Products, Carbon Monoxide & It may not display this or other websites correctly. Hitches, & J. This could be a bad component or maybe a shorted wire somewhere and this over current condition could be what's causing the high charging voltage (if that is high for your motor). What could be the problem? 15VDC is not unheard of, I've seen it with my own truck, and the previous D****. Yesterday my car didn't start, battery low, 15 degrees outside. Waxes, Boat Cleaning I installed them and same problem, blowing the one 25A fuse. Covers, Boat Cover Hardware, Boat Ventilation, Interior & Cabin Bilge Pump, Tires, Rims, & Hub I cleaned all grounds checked wires, could it still be the battery? A voltage regulator needs to know two things before it can control the alternator properly. no issues. Mr. Badwrench. Because if it goes back up to 15.5 or higher, then more than likely there is a loose connection or wire somewhere along that wire harness going to the alternator. Accessories, PWC Parts & Then after five minutes or so it drops to 15+ volts. Caulking, Marine Engine Handles, Life Jackets & Tubes, Shop The tilt works fine until the fuse blows. Acessories, Fishing Outriggers & Wednesday, April 3rd, 2019 AT 6:54 PM Winches, Boat Motor Supports & & Rings, Prop Nut Kits & Only ever replaced 3 batteries. You are using an out of date browser. Then it blows the 25A fuse (one of 2) that is in the CDI enclosure area, next to the CDI unit. If it’s substantially excessive, this can cause electrical system and/or battery damage. Parts, Wash Down But once in a while like today it went up to 15+ volts then dropped to 12 and would not come back up. & Live Bait Test At Main Alternator Wire Reveals Output Of Approx. MPPT 75/15 overcharging. Parts, Boat Tubing & Something on the motor is drawing too much current. Parts, Inflatable Anytime voltage rises, your current will drop ie.... if you have a circuit at 100 volts drawing 10 amps of current then the same circuit at 200 volts would draw 5 amps it's always directly proportionate between voltage, resistance, amp draw and power (wattage). My wife's '76 LTD carried 14.8 volts for over 20 years. Thanks. EXPERT. Kits, Seadog Stainless Steel Cup Storage For some, a constant 13.6 volts is an indication of a problem. Deals, Trailering Charts & Lv 6. Battery. Tops, Bimini Top & Circuit Seats, Pontoon Boat Seats & Any new ideas??? Systems, Lowrance Hook2-4 GPS Blocks, Marine I would say the present alternator is … Forums, Find The system works great until the BattleBorn is charged, then the voltage keeps climbing up. Make sure the connector going to the alt is clean and free of any green corrosion. Furniture, Boat Seat Pedestals & Bullet Skimmer, Paint and Tables, Minn Kota At this point, I would keep my eyes on it for the next few days. The voltage regulator in the battery blew the 10amp fuse in the junction box. Accessories, Boat The voltage gauge is running around 15V at any mid range rpm. Helm Seats, Shop at idle, I am getting 15.1 volts at the battery. Charging system on any vehicle should put out a wee bit over 14 volts to properly charge the battery and as such a battery charger need to do the same so as long as it was not on the charger for an extended period it should be ok however it is best to use a motorcycle specific maintenance charger to avoid over charging I have an obd 2 scan tool that I link to my phone and it reads the same as the dash. Hardware, Boat Cabin The end result is that the battery never actually get fully charged. Most RV converter chargers combine 3 stage battery charging into a dual stage hybrid process. Need Step By Step Instructions In Removing Alternator And The Tools Required. I have a 2006 GMC 1500 with the 5.3 I have 15+ volts at my Battery, (actually from my alternator).. Replaced Battery And Alternator And Still Not Charging. But then a weak ground would likely be somewhat obvious when cranking the engine and you didn’t mention that as a problem. You mentioned your voltmeter runs at about 15 volts most of the time. Boat, Boat Buyers Pumps, Livewell Aerator Pumps Anchor Box Anchors, Fishing Rod & Reel Downs, Couplers, Mounts, my alternator seems to be slightly overcharging. Bilge Pumps, Shop Drink Holders. CREATE Deals, Camping & RV ... (18-20 volts depending on the sun) that goes through to my 12 volt electronics in the camper. Maintenance, Pumps and Most batteries require 14.8 to 15.5 Volts for bulk, 14.8 Absorption & 13.2 for Float. If anything, a higher voltage would lower your current draw as basic ohms law states. High Back Reclining Helm Seat, Cabin and Have the system checked as soon as possible as this “overcharging” condition can cause damage to your electrical system. Accessories, Marine Electrical That’s why the alternator was running giving the battery 15Volts constantly. Platforms, Slide Terminals, Marine Fuse Blocks & All, Boat Bimini Charging system tested while vehicle was running and it failed, no charge. While driving the battery light came on and the dash displayed 'charging system failure'. your boats Gel Coat Match, Shop All rights reserved. It is not your battery overcharging it is your alternater putting out to much juice to the battery. Outboards, Shop 15+ will boil batteries and shorten bulb lifetimes. But once in a while like today it went up to 15+ volts then dropped to 12 and would not come back up. Tested the alternator tested fine exchanged anyway still same thing got new battery same thing. Biminis, RV & Trailer Sockets, Marine Electrical All, Anchor & Varnish, Marine Adhesives, Tackle Boxes, Fishing Bait & Over-charging is caused by the voltage regulator driving the alternator too … Deals, Boat Seats Motors, Fishing Downriggers & Lighting, Marine Teak Kits, Boat Trailer A car alternator needs to be putting out at least 13-14 volts (ideally between 13.8 and 14.2 volts) to effectively charge a 12 volt car battery.If the alternator is putting out too much voltage (15+ volts), it is likely your battery acid will boil over out of the battery. After The Truck Is Not Driven For A Few Hours The Battery Goes Dead. Still, it's perfectly normal for others to see the alternator not charge at all intermittently. My Alternator/generator On My Truck Is Starting To Make Grinding Noises, So I Am Looking At Replacing It. Covers, Boat Seat Hardware, Boat Trailer Could be caused by the computer controlled of the alternator's field generation circuit-have it checked. Depending on the model of alternator you have the regulator may be a replaceable part... on some it's not. Cable, Marine Batteries & If the voltage is constantly below 14 volts, you should have the system checked. The Label Came Off The... Hi, I have NO inverter. My question is this, Does my truck have an external Voltage Regulator? To your problem, yes, 15.4 volts is about 1 volt or so too high. Biminis, Paint and My car is exactly 3 years old. Deals, Electronics If it is actually charging more than 15 volts, then you need to get a new alternator. Seats, Fishing Boat Do you know what the max. If the voltage ever goes above 15 volts, there is a problem with the voltage regulator. Ropes, Boat & Sonar, Trolling voltage needs to be at a fairly high rpm? Holders, Cabin Accessories & Software, Digital