Car Battery 13.8 Volts

By Jo_Hallie665 24 Apr, 2022 Post a Comment

Car Battery Shows 13 Volts What You Need To Know. 138 watt dc converter.

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Maybe outside the noise but pretty darn close.

. Get the Battery You Need Today. 144 is a 4 difference. Free Battery Testing Free Installation with Purchase.

AutoZone Has You Covered at Americas 1 Battery Destination. Fully-charged most car batteries will measure at least 126 volts 130-132V for OPTIMA YELLOWTOPs but low voltage doesnt necessarily equal a bad battery. The alternator is set to hold about that voltage to charge and maintain the battery at full charge.

MikeB 2011 Premium Nav. DL24M-H 2-200V 600W 3mA-40A Electronic Load Voltage Indicator Power Bank Battery Tester 18650 Pack Capacity. I ran a 100 foot length of 10 gauge from the batteries directly to the radio.

138 from pc power supply. Inexpensive 138 power supply. A lower voltage like the 138 volts that lead-acid chargers often use for float charging will not fully charge a lithium iron phosphate battery.

They are wired in series and parallel making a 12 volt system. They are 225 amp hour 20 hrs. 138 might be a little low OP but is still ok in my books.

And this is often for equipment that will be used in automobiles which have 12v batterieselectrical systems. Free Curbside Pickup Available When You Shop Online. The voltage when the engine is running should be in the range of 135-147 volts.

This is the reason there are lots of 138 volt power supplies available. Ask Your Own GM Question. The white wire show a reading but the blue wire showed infinity or 1.

Available at Advance Auto Parts. A car alternator needs to be putting out at least 13-14 volts ideally between 138 and 142 volts to effectively charge a 12 volt car battery. Ad Powerful Reliable Starting Power.

I am now getting a 138 voltage reading at the battery when the car is on. During charging up to 144v is used by bench chargers and solar controllers to get a full charge into the batterys. I know that 138v minus 15 is within the realm of 12v but why is 138 the standard and not 12.

Purchased June 2021 w 59000 miles. Older vehicles with voltage regulators set at about 140 volts simply will not fully charge leadcalcium or hybrid batteries. 138 vs 141 is virtually the same number 2 difference essentially in the noise of measurement.

Fully charged car batteries usually measure at around 126 volts or above with some instances of your car battery showing 13 volts. But most car alternators use either 138 very slow to charge or 14142v. If the alternator is putting out too much voltage 15 volts it is likely your battery acid will boil over out.

Circuit design increase 5 volts to 138 volts. If you measure it right after you start the engine after the car sits overnight it might read in the 14s but will return to the 138 v range over time as the engine runs. Early reports were that its manufacturer recommended charging at 138 to 141 volts 2 suggesting it used hybrid chemistry.

These lower voltage chargers are used to prevent too much overcharging because alternators are one step chargers and dont know when to stop charging. Atx 138v power supply. For a used car I would not worry.

When the engine is running and functioning correctly the car battery will fluctuate between 137 and 147 volts. However it also does not allow the user to add water so it may indeed be leadcalcium. The same is true when measuring battery voltage to determine if a battery has gone bad.

You dont want to go much higher than that in voltage or youll damage the battery. Up to 25 cash back All of a sudden my car is not charging ONLY when the battery is connected. Ad Need a New Battery.

Car Battery Starter 99800mAh 12V Car Jump Starter Power Pack With USB Cable 0. 138 25 amp voltage regulator. A battery is a battery as long as its taken care of and has the specs as required for the vehicle.

Im not sure exactly where it will stop charging but my guess is somewhere around 80 to 90 percent of charge. So I cliped the blue wire at the voltage regulator and at the alternator plug and spliced a new 16 gauge wire in its place from the VR to the alternator plug in. Listening to the radio for an hour however shouldnt discharge the battery so much that the engine wont crank.

138 v wall charger. Radio is a Yaesu Ftdx 1200 requiring 138 volts plus or minus 10. 138 v is within the normal charging range.

The standard float charge voltage for 12 volt lead acid batteries was 138 volts although for more modern batteries often use a slightly different lead alloy which needs 142 volts. When your car is running the cars alternator is charging the battery this is why you should see a higher voltage. Ad Reliable Durable Powerful DieHard Automotive Batteries.

To apply 138 volts to it. If youre readings are significantly higher or lower than these then it would indicate a fault with the battery andor the alternator. Perhaps youre not getting full voltage rectification out of your amplifier only 2 of 3 phases.

Modern cars are very demanding from an electrical perspective even when theyre not being used. 12 volt to 138 volt converter. Puts out 138 without battery 8 volts with new computer and starter fuses okay.

New battery alternator puts out 138 - Answered by a verified GM Mechanic. When it is not being charged but supplying a load like when you turn your headlights on but the motor is not running then the output voltage stays near 12 volts for a significant part of the discharge time. But as I scan the equipment brochures they all refer to 138v DC as their preferred voltage plus or minus 15.

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