B2150 Alternator Output

[TimP]

Hi. I have a B2150 and wanted to add some LED work lights.

Since I will be using LED lamps, the Wattage draw will be less than a standard type bulb.

But does anyone know how much wattage draw I can add to the B2150 with the standard alternator ?

I have seen LED lights which draw anywhere from 12 to 35 watts each.

I plan to use the little extra electrical connector under the right rear fender to hook the lights up.

Ideally, I would add one facing forward and one facing backward to be used mostly at night, when I do snow removal with the bucket and rear snow thrower.

Thanks for any help.

 

[moeh1]

stock dynamo was about 12A max, stay low wattage and you'll be OK.

 

[TimP]

stock dynamo was about 12A max, stay low wattage and you'll be OK.

Hi Marty. Thanks for that info.

Any idea what the stock headlights draw in amps ?

Thanks again.

Tim

 

[moeh1]

Sorry I don't know offhand, I find them useless, so I upgraded the alternator and put real lights up high. Not cheap but worth it for me over the long haul.

 

[TimP]

Marty.

I know that there is a higher output alternator to be foudn somewhere for the B2150.

But I don't have the details to help me look for it.

I'll keep investigating further and maybe I can find the info and get my hands on the larger alternator and the parts I need to do the installation.

Thanks agin.

Tim

 

[Combustix]

I put 55w round utility lights on mine and notice as I run the tractor at around 600-1000 rpm that slowly the lights go dim, though if I rev it up to say 1800 to 2000 they remain bright. I was thinking of putting these on my truck and finding LED's I am not sure of the amp draw on these lights but it overpowers the alt. at idle

 

[TimP]

Combustix,

The LED lights do seem to draw a LOT less amps than the standard bulbs.

The 27 watt LED Lights I am looking at draw less than 2 amps each.

I have sent an email to the seller asking for the exact amp draw, but his ad claims they draw about 1/2 of the regular lights.

They are shockproof/resistant, waterproof, high lumens with a very pure lights equalling daylight qiuality.

Plus, they will supposedly last for 10,000 hours.

But..... they ain't cheap.

Here is a link to the the ebay seller I am looking at, plus he has a regular website.

2PC Square 10-35V 27watt 2000lm Wide Angle Flood Heavy Duty Work Lamp WATERPROOF | eBay

You may have to copy & paste the link.

He has 18 watt, 27 watt and 35 watt. Available in Spot or flood. ( I would get the floods.)

 

[moeh1]

Tim,
I posted the full upgrade parts list a few years ago after Ronnie located it for me. Post should still be here. Unfortunately I couldn't come up with a low budget shop fab workaround, so it was about 5-600 bucks.

 

[TimP]

Hi Marty.

I did several searches and couldn't find it, but I'll keep trying different search terms etc.

Thank you for all of your help.

Tim

 

[dennisgw]

Watts=Volts x Amps. So if you have 27 watt light, it is drawing slightly more than 2 amps (you have 12 volt electrical system). 35 watts would be slightly less than 3 amps. Good enough estimating formula.

 

[TimP]

dennisgw,

Thanks for the formula.

Now if I can find the specs on the standard alternator output, I can get an idea if I can add those lights without over taxing the alternator.

 

[moeh1]

Tim,
go to this topic:
http://www.tractorbynet.com/forums/...9929-kubota-2150-alternator-upgrade-help.html

 

[TimP]

Tim,
go to this topic:
http://www.tractorbynet.com/forums/...9929-kubota-2150-alternator-upgrade-help.html

That's it !!!!

I wonder if Kubota still has these parts available ?

I also have to find the B2150 Alternator output to make sure I really need to put in the larger alternator before I go and spend $500-600.

The ebay seller for the LED lights did send me an email wiht the Amp draw for the lights:

35W using 12V= 2.92A
27W using 12V= 2.25A
18W using 12V= 1.50A
10W using 12V= .83A

35W using 24V= 1.46A
27W using 24V= 1.13A
18W using 24V= .75A
10W using 24V= .42A

So if I buy two 18Watt I'd draw 3.0 Amps and if I went up to the 27Watt units, I'd draw 4.5 amps.

The 35 Watt lights may be really pushing it. I don't know what the tractors uses for the standard headlights or any other electrical needs whicle running.

 

[TimP]

I have another question about the "spare" electrical connection on the B2150.

There is a "Spare" power connection under the right rear fender. It is a "Female" bullet connector. Only one connection, no ground that I can see. So do I have to make sure whatever I hook up will also have a gound wire running to it ?

Where have most of you run a ground wire from ?

And I noticed that under the LEFT fender is another spare bullet connector, but this one is a "male".

What is that connector ?

Thanks for the help.

 

[moeh1]

The rear right fender bullet is there for a rear work light. I believe it is "live" with the headlights on, but not positive abot that. If you mount a worklight on the fender it picks up the ground return thru the fender itself. No idea on the left one...

 

[TimP]

The rear right fender bullet is there for a rear work light. I believe it is "live" with the headlights on, but not positive abot that. If you mount a worklight on the fender it picks up the ground return thru the fender itself. No idea on the left one...

Marty,

Thanks for all of the info. You're a fountain of useful information, and it's helped me a great deal.

I now have the Rigid Dually D2 lights and the brackets from Messick's. I'm still waiting for the Alternator upgrade stuff from TractorSmart, but I think I can get started on mounting and wiring.

To tell you the truth, even if I run all 4 lights, It's only an additonal 8 amp draw and I "may" be fine with the oem 12 amp dyno.

I really only plan to run 2 at a time (4 amp draw), but I'll have the upgrade to install in case I want to run a microwave too ! ;.)

Tim

 

[moeh1]

Dyno only puts out that 12 amps at some higher speed, and you need leftover amps to recharge the battery from glow plugs and starter use. You'll be happier when you have the new alternator in there.
Best,

 

[TimP]

Dyno only puts out that 12 amps at some higher speed, and you need leftover amps to recharge the battery from glow plugs and starter use. You'll be happier when you have the new alternator in there.
Best,

Well, coincidentally, the box just arrived with all of the new alternator upgrade parts.

Looks like I've got several projects to do.

The other thing I have to do is pull both the front and rear Tires & Rims off the B2150 to take them and have new tires mounted.

I've got to figure out exactly how to safely jack up and block the front and rear to remove the wheels.

 

[Mai]

TimP; I did the same thing on my almost new B2023. At first I added 4 regular tractor lights on the roll bar. 2 facing front, 2 rear. The voltage ( I had added a digital voltmeter )never got higher than 11.7. No good. So, I removed them and added 2 LED head lamps and 2 LED rear facing lamps. Now at 1600 rpm the voltage is still too low. At 2200 rpm it is in the 12.4 to 12.6 range. So, my take on that is that the alternator is really, really small. But it seems to work. I also have a 2500 lb electric winch on the front of the tractor that I use often and no problems yet.

 

[TimP]

TimP; I did the same thing on my almost new B2023. At first I added 4 regular tractor lights on the roll bar. 2 facing front, 2 rear. The voltage ( I had added a digital voltmeter )never got higher than 11.7. No good. So, I removed them and added 2 LED head lamps and 2 LED rear facing lamps. Now at 1600 rpm the voltage is still too low. At 2200 rpm it is in the 12.4 to 12.6 range. So, my take on that is that the alternator is really, really small. But it seems to work. I also have a 2500 lb electric winch on the front of the tractor that I use often and no problems yet.

HI Mai.

The OEM dynamo on my B2150 only put out 12-14 Amps at best, while the upgraded alternator put out a whopping 40 Amps.

That left me with a big reserve of amperage to use. I added 4 work lights and upgraded LED headlight bulbs with no worries about overloading the system.

It was expensive, but worth it to me.

I did try to run the 4 work lights using the old dynamo and was just too much of a draw so I did the upgrade.

I hope it will be a selling point now that I am getting ready to sell my B2150.