12v battery full charge voltage mean,car battery repair mumbai quikr,halfords car battery jump leads,charging car battery remove caps lock - Step 1

03.01.2016
I put together the following chart which indicates the state-of-charge (percent) as it relates to battery voltage or specific gravity.
How I determined the voltage values: I researched as many battery manufacturers that I could find regarding their own published SOC data. Note: Voltage measurements are only approximate to determine SOC, and measuring battery voltage is NOT the most accurate way to do this (there are variables under varying circumstances). Note: For longer battery life, batteries should remain in the green zone (40% or more SOC). Note: The 100% voltage is NOT the recommended charging voltage (which will be higher, and multi-stage). If the gravity of each cell stays relatively the same (usually all in the green) does that mean that I don’t need to equalize that battery? The reason I ask is: I have 90 watts of harbor freight panels, run thru a sunsaver controller that charges 2 wally world deep cycle batteries and the gravity has almost never been below the green level, and I never really have had to add much water. My other set up has about 750 watts of poly panels, run through a xantrex 30 amp charge controller charging a trojan 12 volt golf cart battery. I guess my question is do I need to do this since the wally world batteries always seem to be in good shape as per hydrometer readings? I built an off-grid system for my home and have expanded and maintained it myself over the years, so that is my knowledge base.
Also, NEVER combine different types, or age, or widely differing state of charge of your batteries when charging. Thanks Carl, and as you insinuated, there are variables, including temperature compensation measurements and others. Saw this as I was looking for a SG to SOC chart and thought I would make a couple of comments. I used the multimeter to check some new alkaline batteries and their voltage was as expected.
We've just changed our previous MH to a 'new to us' Swift Kontiki and all in all v.pleased with it. With reference to Steve's table of voltage against % charge, I wonder if your battery was fully charged at the start. Using LED lighting, TV, and a PVR, (both on 240v transformers for 3-4 hours) pump for 2 showers and washing up, (in summer) the battery drops to around 70-75% observed before going to sleep, but is usually almost back up to 100% by 9am, we can stay put for as long as the water & waste tanks last. Spring autumn and winter obviously less long due to greater use of heating, lights, and the cooling effect on the batteries. So you should at least use the higher of your two voltages, which would possibly have risen a bit higher. Have come to the conclusion that the battery is ok so no need to get on to the dealer about it. Looks like a solar panel was fitted previously, all wiring is in place so will post later on advice for possible purchase in the future.
I started having a problem last week when my 2007 Prius was setting for two days while I was using my pickup truck. I have another 2007 Prius here for body repairs so I took the after market (newer) battery out of it and topped the charge off in it. Since I was still going to be short one battery, I contacted Battery Systems, my shops battery dealer and ask them to drop off a new Yellow Top Optima that fits the Prius (FYI my shop price is $159.96). I called for road service and got a jump start and the systems came up and I was able to clear the Read Triangle when I got home by turning the car off and back on again. Using my Torque Pro program, tried to read the ECU and it indicate no codes stored, Several tries, no codes or history. Called friend who has reader that will read the CAN Bus and he managed to find an odd P0503 code having to do with a speed sensor. Bottom line, I can't figure what is draining these batteries, so I'm wonder how to check if the DC to DC Converter is actually charging the Aux Battery as it should be???
I would suggest to use a voltmeter on the 12V system to monitor what the voltage is when the car is ready.
Otherwise, getting set up with a mini VCI would allow you to check these things from the OBDII port. I just check the charge, after about 4 hour, and the charger had stopped charging and with the charger disconnected, I got a reading of 12.83--- Went back, now 5 min. It is a good idea to check the voltage at the posts with a digital volt meter before you purchase a new battery. I have done a fair amount of testing on the Prius (gen2) charging system, and it is capable of charging at higher voltages than 13.8v. Hi Steve, the obvious thing that you need to do here is to use your voltmeter to take some readings of the battery voltage (which is also the dc-dc converter voltage) when the Prius is in ready mode. Once you can verify that the ready state voltage is correct, then we start looking for either a faulty battery or a parasitic load problem. I will be driving a bit today and will leave the volt meter connected to the 12v sytem and see of the Opitma reaches a full charge from the DCtoDC system. It looks to me that your car has a leak or short somewhere in +12V circuitry that discharges the battery when car is turned off. Protecting your caravan against theft or damage requires the right caravan insurance and security products.
Top tips on how to carefully budget a new caravan and expert advice from the Financial Ombudsman Service. Some of our favourite caravan blogs from around the internet - all written by Caravan Talk members you can find on our forums. Whether you're looking for used caravans for sale or want to sell your old towcar, our listings are there to help and are free to members. Our caravan specifications tool lists over 10,000 caravans, providing technical specs in both metric and imperial. Read reviews of the Caravan Talk members' towcars, or add your own and share your experience. Caravan advice, reviews, reports and diaries from some of the most knowledgeable people in the industry. To maximise the life of the battery, it is advised you never let the charge drop below 50%.


Leisure batteries with a voltage of below 11.81 should only be charged with a 4 stage charger otherwise damage to the plates may occur.
For the most accurate results using this method of measuring the state of charge (SOC) the battery should have been rested for at least 6 hours - i.e not been charged or any load put on it. You must have JavaScript enabled in your browser to utilize the functionality of this website. This dual rate battery charger handles all your 6V and 12V battery charging needs – automotive, RV and other applications. This portable automotive battery charger has three modes, making it easy to charge, maintain or jump start 12 volt batteries. Portable unit offers 2-10 amp charging rates plus a 50 amp engine start for emergency starting6 ft. Can anyone tell me the correct reading (or range) that I should get on my voltometer for a battery after charging for 24 hours. Advance Auto will test for free and the test printout has a $5.00 coupon towards a new battery if you buy from them. Bowtie is correct, right off the battery charger, the battery will have a "surface charge" from the charger voltage being higher than the battery fully charged voltage.
On the state of charge graph below, a 12.2 volt reading (intersection of red lines) results in only a 40% charged battery. The orange and blue lines represent the voltage of a 100% fully charged battery measured ON THE CHARGER. On a trickle charger, the 100% charged voltage would be (follow the orange line to the left) 13.5 volts. Parenthetically, my voltmeter is malfunctioning,(Greenlee multi-range + temp, etc.), specifically the 0-20VDC range.
Also, now that I know you're back at the "Help Desk": My frustration all started after plowing our village sidewalks for 2 hours and then the tractor just quit.
You will need to think of your electrical circuit as a loop from your positive battery post to your negative post. If your trouble started when you turned on the lights, I would suggest dis-connecting the lights.
Voltages and Specific Gravity are listed for a 6-volt or 12-volt battery, and battery banks of 24 and 48 volts.
Some were slightly different from each-other with regards to their SOC values, however I averaged all of them together to come up with a chart which represents what I believe to be a good general indication. A more accurate method is to measure the specific gravity of each cell within the battery, however for many batteries this is difficult or impossible (AGM batteries, for example). Occasional dips into the yellow may not be harmful, but continual discharges to those levels will shorten battery life considerably. Just thought it might be helpful to add that one tool I’ve found useful is the little floating balls thing for checking individual cell status in lead acid batteries. I mainly use this system for 12 volt water pumps,a few LED’s and cfl lights and occasionally power tools.
My immediate thought about the differences in your two battery banks is that the wally world batteries are newer, or less heavily used than the Trojan. I do off grid solar for a living, 25 years now and I sent a customer the link to this chart to give him an extra tool to keep tabs of his system. I am amazed at people who think because it is digital, it is accurate to the display level of the digits. We are using a 12v 600w Nikkai inverter to run our 230v 60w television, but it won't go for long before the inverter trips out [low battery alert (11.5v I think)] I'm guessing the inverter is drawing about 100w on the 12v (in) side, so assuming the inverter is not faulty it would suggest I need to double up on leisure battery capacity when wild camping.
When using the battery voltage as an indicator of state of charge, the battery should have been at rest (niether charging or discharging) for some time time - I would give it two or three hours. It may not display this or other websites correctly.You should upgrade or use an alternative browser. Found the 12 volt battery dead so I disconnected it and tested it with a battery load tester. I would be a couple days til their deliver truck would be here and again I left the car sit for a couple days and drove my truck. Drove the car for 6 days and this morning everything was fine when I drove to church and left it, head lites off (never had used them), came out 2 hours later and when I started the car, I got the Red Triangle and Ready but continued home. There have been several posts on Optima batteries having low SOC on delivery and needing to be charged before installing. Although there are several threads about entering maintenance mode to read the 12V system, it has been pointed out that this is not necessarily so accurate, just a rough indication. I have drive the car daily for the past 5 days, all in day light hours without head lights. Seemed to stay there and no drop til I turned on the head lights, when it dropped to 13.87 and seemed to settle there after watching for a couple min.
I purchased an Optima YellowTop from elearnaid about 18 months ago and I have to charge it every single night with my CTEK charger. Share advice with our members and keep up with the latest caravanning developments on the forums. These are not expensive and small simple multimeters can usually be found for around £10 in electronic shops or big DIY stores.
With the caravan 12 volt electrical system turned off, place the red lead on the positive terminal (+ve) and the black lead on the negative terminal (-ve). For the best charging performance when the leisure battery is not in use (over winter) look for a charger that offers a 4 stage charging process ( Bulk - Absorption - Equalisation - Float). The compact unit is loaded with features, including long battery leads and power cord, charge indicator, self-resetting circuit breaker and an automatic trickle charge mode after your battery is fully charged. This 12 volt automotive battery charger has built-in safety features such as reverse polarity alert, thermal protection shutoff and a self-resetting circuit breaker. Measuring and knowing the SOC of a battery or battery bank is useful when applying towards alternative energy, or any other situation where you need to know its condition. Many (most) alt-energy systems incorporate a DC-shunt which keeps track of SOC by monitoring the current flow in and out of the battery or battery bank, which is a very accurate way to track state-of-charge.
To be somewhat accurate, the battery should be in that condition for an hour or two before taking a measurement, while for a more accurate measurement you should wait 6 hours up to 24 hours.


Generally speaking, the less you discharge the battery before recharge, the longer the battery will last.
The Trojan sounds like it is getting old, and needs more frequent watering and equalizing to keep it functioning. The one thing I would disagree with somewhat from your well written article is concerning the accuracy of state of charge meters.
There are devices for maintaining batteries that monitor charge and potential, charging at slow rates if needed.
I keep all my 12 volt batteries on smart chargers which will trickle charge as needed to keep than fully charged. Isolate the battery from the circuits and measure the voltage at the battery terminals 30 mins after the end of charging. I turn it off and on again but this time I got no Ready but the Triangle and the whole sting of check light. When I discovered the problem today, after having it in the car for 5 days, and discovering a problem, it read 12.01 volts.
Now I'm willing to allow that this drop is due to the absence of the charger connection, all be it in a monitoring mode. It will keep a battery charged as long as the car is driven regularly and if the battery is not severely discharged. If this ready state voltage is verified directly at the battery terminals then there is no reason why it shouldn't be keeping the batteries charged.
However, I should consider the fact that the charger only charges to about 13 volt before if steps down to maintain.
If you drain the battery slightly by putting a small load to it, such as turning the headlights of the tractor on for a few minutes, the false "surface charge" is removed and the true voltage of the battery is seen. After charging a battery to about 12.3VDC (had to use the 20-200VDC range to get this reading), that battery also would no start it.
If your just at idle, or just above, it will not be enough power generated to charge the battery with the lights on. Most alternative-energy systems are designed to keep the battery bank at least 50% or higher. When batteries are in series they do not necessarily charge at the same rate and can become imbalanced. Lead-acid should not be discharged below 11 volts or they take permanent damage unless it is an AGM battery or a high quality deep-discharge gel.
Once the battery is fully charged the actual wattage used by the charger drops to a fraction of a watt. I have heard and read different outputs or charging rates concerning the charging system on the Prius. It would be better to charge the battery overnight, then look at the battery voltage after the battery has rested another day to dissipate surface charge. If this is your c160 that you have in your signature, It should have a 15 amp charging system. It is set to equalize every 30 days, however sometimes I have to do it more than that, to bring them all back to green.
The plates may have become heavily sulfated enough that the equalize mode can’t get it all off into solution. The equalizing charge ups the charging voltages in order to get enough voltage to the lesser charged batteries in the series chain. Does it require charging if I am not going to use it soon?If it's reading this while disconnected from the charger, your meter is probably lying. Since the weather is in the low 50s the battery temp cause the battery voltage to drop some also.
I combine the batteries whenever we lose power for more than a few hours so we can run TVs, fans DVD player and lights etc.
The standard meter for years has been the Tri-Metric meter but I finally gave up on using them because they arent very accurate unless fine-tuned beyond the level most homeowners are capable of understanding.
Yes it will over charge the higher charged batteries, which is why the equalizing charge is only applied for a short time, however if the system uses a single battery equalization is not required and can be detrimental.
It is under no load, but I'd still suspect that reading.And it is not a good idea to let a battery like this sit for two months.
You should probably start saving your shekels for a new battery because that one is not going to live much longer.
It doesnt help that the manual makes little sense to the layman or that the meter cant read battery voltage and often keeps compounding small errors into bigger ones. It would be wise to buy a desulfator unit for your batteries in order to reverse sulfation of the plates after long periods of less than 100% charge. It takes about 12 to 14 hours but as long as the battery wasn't damaged from being completely discharged it will work great. The meters that you can get that take their info from the inverter or in the case of Midnite Solar from the charge controller are more accurate because they temperature compensate but they need fine-tuning as well.
Just yesterday a customer called because his inverter shut down at 23 volts, a definite low battery but the SOC meter claimed he was at 81% full. It at first will light up the charge complete light but it will soon go off and start charging. I sent him a link to your chart and told him to call Magnum tech support to learn to tweak the meter. I called customer service to express my displeasure and they would do an exchange online, but it would take 2 to 3 weeks. I wanted to place an order for a unit that was available online but not in the store and Afa the first agent I spoke to could not assist me nor was Ina her supervisor willing to pick up the overnight shipping as a sign of good will. I decided to get this charger instead of buying another battery to see if I could bring it back to life and it did exactly that.



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Comments 12v battery full charge voltage mean

  1. IzbranniY
    Restored, because the peak ac line using 120 volt AC rectified can.
  2. ARMAGEDON
    Allows its customers to put all battery types even in the.
  3. X_U_L_I_Q_A_N
    Owners we surveyed gave this function, Progressive Dynamics has developed the microprocessor controlled Charge Wizard.