B2650 Alternator Output for LED Lights?

[Rock Crawler]

I have the WSM for the machine, but if it ever discusses the amperage/wattage availability of the charging system, I'm missing it.

I'm trying to learn what the charging system puts out, and what is available for me to consume with the addition of NiLight LED lights. I'm looking at adding 4 x 18W cubes (2 rear facing, 2 side facing) and 2 36W front facing.

Nilight Led Light Bar 2PCS 18w 4" Flood Driving Fog Light Off Road Lights Boat Lights driving lights Led Work Light SUV Jeep Lamp,2 years Warranty Amazon.com: Nilight Led Light Bar 2PCS 18w 4" Flood Driving Fog Light Off Road Lights Boat Lights driving lights Led Work Light SUV Jeep Lamp,2 years Warranty: Automotive

Nilight Led Light Bar 2PCS 36w 6.5Inch Flood Led Off Road Lights Super Bright Driving Fog Light Boat Lights Driving Lights Led Work Light SUV Jeep Lamp,2 Years Warranty Amazon.com: Nilight Led Light Bar 2PCS 36w 6.5Inch Flood Led Off Road Lights Super Bright Driving Fog Light Boat Lights Driving Lights Led Work Light SUV Jeep Lamp,2 Years Warranty: Automotive

Call it 110 Watts total. I did already order and have on hand LED bulbs to replace all if the factory incandescent 1156 bulbs on the machine, so I'll be returning at least that amount of power back into usable electricity.

Do, does anybody know what the charging system is like in this and how much spare/overhead power we have to work with? If there is enough power left on the table, I also have a short curved bar that I could install... But first I really need to know what I have to work with here.

 

[Dan33Klein]

Rock crawler, I’ve looked st this before also and some sites have conflicting info. Some places are showing 16 amp for ROPS and 40 for the cab model. I have a hard time believing this. The bx tractors even came with the small 40amp automotive style alternators. All John Deere SCUTs and up come with 40 as a minimum and then up. I would like to hope the 2650s have a 40amp. If it truly is less than that is something I will have to be upgrading also..

Hopefully someone that knows responds.

 

[Rock Crawler]

16 amps? Wow, that's like.... Not really anything. My wife's vib..... Never mind.... Anyways, it takes more than 16 amps to run!

 

[Dan33Klein]

Do you have a picture of yours, I did some quick reading and it says the 2650 doesn’t even have a real alternator, it is a dynamo style.
This will make me mad if it’s true. My BX2370 atleast has a real alternator.
I hope my research is wrong

Tractor data is showing 60amps.

Another site said 40amps for ROPS
And 60 amps for cab

I hope that’s true.

If we do have 40amp alternators you will be fine with any amount of LEDS

 

[Rock Crawler]

40 amps at 12 volts is 480 Watts, 60 amps at 12 volts is 720 Watts.

I'm looking at 144 Watts of lighting, so at the 480 Watts, I wonder if any sparky guys have a way to test what the machine uses to determine what about we have remaining.

Hopefully someone who knows more than I do about a multimeter can tell us at least how to measure the total amount draw of the base machine.

I'm off today, I think I'm going to go pull the tractor out and look for something similar to an alternator.

 

[Rock Crawler]

I have the WSM here, it clearly says and shows an Alternator. See no point does it ever discuss the output

 

[Rock Crawler]

So based on the WSM I'm pretty sure that we are not stuck with the dynamo.... Whatever that is? Also, I'm going to guess that since we do have an alternator according to our manual, we have AT LEAST 40 amps.... 100 amps would be a lot better!

 

[rkidd]

I have the WSM here, it clearly says and shows an Alternator. See no point does it ever discuss the output

When I bought my B2650 rops machine, I researched this question. The rops model has a 14.5 amp dynamo, and the cab model has a 55 amp alternator. There are some alternator upgrade options for the dynamo. When I added 4 LED lights to my tractor, I bought an amp clamp to check amp draw with everything on, and then knew what I could use for LED lights. with all the lights, flashers and new 4 LED lights on I am about an 11 amp draw for the whole system. The 4 new LED lights are 6 amps out of the 11 amps. So my dynamo will handle it ok. Through experimentation though, I have to be running at least 1800 rpms for the dynamo to put out that many amps. That is not a problem as I run close to pto rpm for doing any work. If I am going to take a break from like plowing snow, I just flip off the LEDS and set it to high idle. I have almost 800 hrs on mine doing it this way with no problems. I was going to upgrade to the alternator if need be, but havent had to. I would suggest buy an amp clamp or from where I see you work, you could probably borrow one, turn everything on and see what you have left available and then figure out your lights. Good luck with your build.

 

[Dan33Klein]

That’s crazy when the 50 series B is the “premium” tractor. And they have a dynamo on it. When a bx has a 40 amp alternator. Why don’t they give you the option to upgrade the alternator at build my kubota when ordering the tractor new. Like they do on other models.
I’m really disappointed in this. Looks like I will be doing an alternator upgrade. I did one on my 455 John Deere myself.

 

[Rock Crawler]

Do this is a 14.5 amp Dynamo?

There is a ton of space, I could add in a 140 amp GM 1 wire alternator and replace that.

 

[Dan33Klein]

That is definitely the dynamo.

It generates ac current and leaves on 2 wires and goes to an external voltage regulator.
This is how my John Deere was setup. I converted it to a 40amp 1 wire.
For the idiot light in the dash and everything to work right it will require some modifications.

 

[Dan33Klein]

I seen some places where kubota sells the upgraded alternator, new belt and wiring harness.

Not sure if it was specially for the 2650 tho

 

[rkidd]

I seen some places where kubota sells the upgraded alternator, new belt and wiring harness.

Not sure if it was specially for the 2650 tho

Yes Dan you are right that is a pic of the dynamo. There is an upgrade for the B2650 from Kubota that other members have done. If I remember right it is 40 amp. Search on this site and I will try to find it. I also updated my spool valve build so check it out.

 

[rkidd]

I found the kit number that some of the other members from here and OTT have used. It is B7324 and is 40 amp.

 

[Dan33Klein]

I will have a conversation about this issue with my dealer when my tractor comes in. I can’t believe this is something that needs to be added after the fact and he customer to pay for.
How can a small bx come stock with the 40amp alternator and a premium 50 series B comes with a dynamo. This should be a 40amp minimum from the factory.

 

[Dan33Klein]

That kit includes the same denso 40amp alternator I put on my John Deere 455. It has 2 spades on the back. One is a ignition 12v excitement wire. The other is a negative ground to light up the idiot light in the dash. I made it work easy enough on my 455. But I will see how much the kit is from the dealer

 

[rkidd]

That kit includes the same denso 40amp alternator I put on my John Deere 455. It has 2 spades on the back. One is a ignition 12v excitement wire. The other is a negative ground to light up the idiot light in the dash. I made it work easy enough on my 455. But I will see how much the kit is from the dealer

If I remember right, it is around $200.00

 

[Dan33Klein]

Here is a link to a video I made of the alternator upgrade I did on the 455. I made it to try to help other owners of John Deere garden tractors to upgrade for about 80$ instead of 400+ John Deere wanted for the kit. I kind of ramble in the video. It was my first one. And I don’t even think I had a drivers license yet...
LOL
John Deere 455 40 Amp Alternator Upgrade Installation - YouTube

 

[Dan33Klein]

If it’s only around 200$ I’ll buy it. Or make the dealer throw it in with the tractor deal. As I haven’t signed anything or actually purchased it yet.

 

[oldballs]

Your picture shows the dynamo,RC. It was the same in my 2009 BX2660 and my 2012 B2620. It is the same one in my new B2650 ROPS. It is rated at 14 amps as far as I know....just like the others. I had put two 55W halogen lamps on the other tractors and they drew 4.5 amps each. The dynamo handled it okay. Some treads of the past discussed replacing the dynamo with an alternator to gain more amps.

When I put light on this B2650, I'll select a couple LED's to gain more light and use less amps. Some have commented that the LED do not create heat and can ice over in bad weather.

Cheers,
Mike