Turn the motor off with no load (headlights, etc. all OFF) and read the battery voltage. With the engine just shut off, the battery voltage should be 13.2 volts to 13.8 volts. The exact voltage varies with the battery, how quickly you read it, and the state of battery charge.
Open circuit voltage means the voltage rating of a battery when it on "zero load" or when it is not connected to any circuit. You now have a fair idea of answer to the question, "What charger should one use when charging a car battery, 2 amp or 10 amp?"
Aug 09, 2011 · If the fuse isn’t present and a short occurs, the power wire has the potential to start a fire in the vehicle. The amperage of the fuse should be equivalent to, or as close as possible to, the amplifier’s current draw or onboard fuse. If you have an amp that draws 75 amps, an 80-amp fuse will work fine.
I changed the BMW E60 535i car battery myself 3.5 years ago after research into this battery register issue. The car has seen no problem so far. I understand the battery charging voltage might not be optimized but who cares. Plan to replace the battery when it hits 4 years. From an economic standpoint, it makes perfect sense.
Oct 27, 2010 · 24 hours later, the battery still reads 12.5 volts. 32 hours later, the battery still reads 12.5 volts. SO - why is the battery losing voltage when the car sits: - if I have no parasitic draw, and, - if the battery holds charge (at lest so far) when not cabled to the car, and,
Jun 20, 2017 · Therefore, it is important to maintain and charge the battery so that the charge does not drop below 12.4 Volts. Once the voltage drops below 12.4 Volts sulfation kicks in and leads to battery corrosion. To help prevent sulfation, it is beneficial to periodically charge the car battery with a car battery charger.
The past few months I have been having trouble getting my car to start, and it's slowly but surely gotten worse. I'm at the point where every single time i start my car, I have to use my portable jump box. After the car is started, everything works as it should. After a little bit of back and...
A device that is designed with too high a cutoff voltage may stop operating while the battery still has significant capacity remaining. C - Used to signify a charge or discharge rate equal to the capacity of a battery divided by 1 hour. Thus C for a 1600 mAh battery would be 1.6 A, C/5 for the same battery would be 320 mA and C/10 would be 160 mA.