Do they make a 48 volt alternator?

48V systems fill the need for ever-increasing power requirements from DC battery systems. the benefits of a 48V system include much more efficient components such as chargers and inverters, manageable cable sizes, and of course higher output alternators in reasonable package sizes.

How much power does a car alternator produce?

Conventional alternator may only produce power for about 500 Watt to 600 Watt. But nowadays, a single alternator can produce power up to 2500 Watt, depending on the power demand. The power that can be produced by an alternator is determined by the alternator rating.

Can you charge a 48V battery with a 12v charger?

If you hook a 12v charger to a 48v system, it simply will not charge and might ruin your charger. The charging voltage always needs to be a little higher than the battery voltage to charge it at all.

How can I improve the efficiency of my alternator?

If you can get a whole lot more power out of an alternator that is turning at high RPMs by letting it put out a higher Voltage. Doing this would also make it much more efficient.

Are aftermarket alternators good?

Aftermarket alternators are sold as less expensive OEM replacements, but they aren’t always good replacements because they are not identical to the OEM unit. Buyers are often unable to spot the differences in quality, unless they inform themselves.

How fast does an alternator have to spin to produce electricity?

Most alternators need to spin at about 2,400 rpm at idle, have their maximum output above 6,000 rpm, and should never exceed 18,000 rpm.

How much horsepower does it take to turn an alternator?

An alternator takes about 1 HP for every 25 Amps of power. At full output, a 100 Amp alternator will need about 4 HP.

Is it possible to convert an alternator to put out 48V?

Converting automotive alternator to put out 48V? Apparently (if you’re an electronics whiz) it’s fairly easy to get an automotive alternator to put out as much as 120VDC by modifying the voltage regulator. This could be very useful for charging large banks (48V, etc…) of batteries via an alternator coupled to a small engine.

What is the difference between 12V and 48V?

DC air conditioning and cooking, for example can stretch 12V systems beyond practical application. the benefits of a 48V system include much more efficient components such as chargers and inverters, manageable cable sizes, and of course higher output alternators in reasonable package sizes.

What kind of alternator do I need for a 28V motor?

Delco-Remy 36si or 55si series 24v alternators. These are continuous duty marine-diesel alternators. Clones of the 100Amp 36si can be found for about $300. Then you can get a 24v to 48v booster. If I remember correctly, 3000rpm on the alternator would give you about 75Amps @ 28v.

What are the benefits of 48V systems?

Reduction of CO2emission to meet future emission legislation Comfort enhancement and new functions Less integration effort, weight & cost, compared to HV systems (safety, battery) 48V systems have the potential to fill the gap between state-of-the-art 12V Start/Stop systems and high voltage hybrid powertrains.