Posted August 7, 201015 yr What is the resting voltage for this battery?? Will it charge properly with a stock voltage alternator ?? what sizes do you guys make the 14 volt batt in.
August 8, 201015 yr 15.3v.DO NOT USE THIS TO REPLACE A 12v SYSTEM.If u just gotta use it under the hood, u need to step the voltage down for it to be safe for the car.If you wanna use it for daily driving, u need either a separate alt keeping it charged or some stepdowns to prevent the car from running on too much voltage.Typical charge voltage i believe is 16.8v... WAY too high for a car without proper setup.
August 8, 201015 yr Author 15.3v.DO NOT USE THIS TO REPLACE A 12v SYSTEM.If u just gotta use it under the hood, u need to step the voltage down for it to be safe for the car.If you wanna use it for daily driving, u need either a separate alt keeping it charged or some stepdowns to prevent the car from running on too much voltage.Typical charge voltage i believe is 16.8v... WAY too high for a car without proper setup.I thought they made these for regular 12v systems..... a comprmise between 12 & 16v batteries.
August 9, 201015 yr i'll say it again.. it's not safe to run over 16v to your car...PLUS, many amps on the market can't even accept anything over 15.9v without going into protect.
August 9, 201015 yr We haven't run into any problems with the GMs running the 14V system. Some Ford and Dodge applicatoins can run it no problem, but some of the newer applications need to have a step down in there for the vehicles electrical system.You would need either an alternator that is regulated to 16.8V or be able to run the VCM and control the voltage output through it. The 14Vs need to be charged in the 16.8V range.
August 9, 201015 yr Author We haven't run into any problems with the GMs running the 14V system. Some Ford and Dodge applicatoins can run it no problem, but some of the newer applications need to have a step down in there for the vehicles electrical system.You would need either an alternator that is regulated to 16.8V or be able to run the VCM and control the voltage output through it. The 14Vs need to be charged in the 16.8V range.What is the lowest you can charge it at? Because on a twelve volt. System as long as its in the 13.1-14.5 range every thing is fine. What is the threshold with the 14.0v battery? And what is the voltage on a fully charged/discharged 14.0v battery. Thank you
August 9, 201015 yr We haven't run into any problems with the GMs running the 14V system. Some Ford and Dodge applicatoins can run it no problem, but some of the newer applications need to have a step down in there for the vehicles electrical system.You would need either an alternator that is regulated to 16.8V or be able to run the VCM and control the voltage output through it. The 14Vs need to be charged in the 16.8V range.What is the lowest you can charge it at? Because on a twelve volt. System as long as its in the 13.1-14.5 range every thing is fine. What is the threshold with the 14.0v battery? And what is the voltage on a fully charged/discharged 14.0v battery. Thank youI have a guy that is running his 14V in his Ford without a step down and charging in the low 16V range with good performance. He is not getting the peak performance out of it and is actually shortening the life of the battery, but he is fine with that.If you look at it mathematical, then you figure optimal charge rate is 2.4V per cell. You need at least .75V to 1V of charge in excess of the resting voltage you want. So, a 12V system is fully charged at 12.9v. To get it to that rate you need to charge at a minimum charge rate of 13.65V to 13.9V. A 12V battery has 6 cells in it, so 13.65v/6 = 2.275V per cell and 13.9V/6 = 2.317V per cell. Keep in mind this is the min you want to charge at. To charge at the optimal charge rate of 14.4V you would need to charge at the 2.4V per cell.Ok 14V battery has 7 cells. Do the same math but divide by 7. A fully charged 14V battery will be at 14.9 to 15V. So the minimum you can charge is 15.65 to 16V. That puts you at 15.65V/7 =2.236V per cell and 16V/7 = 2.286v per cell. Again the optimal charge rate is 2.4V per cell which would have you charging at 16.8V.
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.