Explaining Electrical Accessories and Calculating How much amp draw

[JonnyCinco]

I was hoping someone could fill me in before I get too excited with electric farkles and I end up with a dead battery or a battery that will not hold a charge.

how do you go about figuring out how many electric do-dads you can have on the s10?

Looking at GPS, aux lights, cold weather gear (Gerbings or yami grip warmers), gerbings for the pillion, charged tank bag, and whatever else my dreams can supply...until I wake up.

Thanks for the info!

 

[Tremor38]

Re: Re: Explaining Electrical Accessories and Calculating How much amp draw

I was hoping someone could fill me in before I get too excited with electric farkles and I end up with a dead battery or a battery that will not hold a charge.

how do you go about figuring out how many electric do-dads you can have on the s10?

Looking at GPS, aux lights, cold weather gear (Gerbings or yami grip warmers), gerbings for the pillion, charged tank bag, and whatever else my dreams can supply...until I wake up.

Thanks for the info!

All I have is an incomplete answer, but I can tell you the bike's OEM electrics consume 324watts (measured) of the 580-600W claimed charging capacity (depending upon what you read). The fan is included in that figure. Your heated gear and Aux lights will be the energy hogs. One Gerbing jacket alone can consume 70＋ watts. Theoretically, the bike can handle what you speak of, but I'd probably go with LED for the aux lights just to ensure you have headroom. I've always found published stator capacities to be optimistic.

I put out some earlier numbers that weren't completely comprehensive, so if you come across them please disregard.

One of these days I'll perform an actual load check to get the rest of the story, but haven't gathered enough old headlight bulbs!

Sent from my F-05D using Tapatalk 2

 

[stevepsd]

Re: Re: Explaining Electrical Accessories and Calculating How much amp draw

All I have is an incomplete answer, but I can tell you the bike's OEM electrics consume 324watts (measured) of the 580-600W claimed charging capacity (depending upon what you read). The fan is included in that figure. Your heated gear and Aux lights will be the energy hogs. One Gerbing jacket alone can consume 70＋ watts. Theoretically, the bike can handle what you speak of, but I'd probably go with LED for the aux lights just to ensure you have headroom. I've always found published stator capacities to be optimistic.

I put out some earlier numbers that weren't completely comprehensive, so if you come across them pease disregard.

One of these days I'll perform an actual load check to get the rest of the story, but havent gathered enough old headlight bulbs!

Sent from my F-05D using Tapatalk 2

Since the fan is a intermittent load (usually ) what was the draw without it? If I could find my clamp-on ammeter I would measure it myself, but my Fluke only goes to 10Amps DC.

 

[Tremor38]

Re: Re: Re: Explaining Electrical Accessories and Calculating How much amp draw

Since the fan is a intermittent load (usually ) what was the draw without it? If I could find my clamp-on ammeter I would measure it myself, but my Fluke only goes to 10Amps DC.

The fan draws 5.4A so 5.4A x 13.5V = 73W. 324W - 73W = 251W.
I used a clamp style ammeter and fuse loops to take all of the readings.

I still want to load check this bike if nobody beats me to it, because I'm always suspicious of alternator ratings.

Sent from my F-05D using Tapatalk 2

 

[Tremor38]

Re: Re: Explaining Electrical Accessories and Calculating How much amp draw

The service manual states that the AC magneto (generator) produces 42.9A 14V @5000rpm = 600.6 watts at 5000rpm. Lighting consumes 165 watts not sure about the rad fan motor, abs, injectors, starting circuit etc... DC amp clamping or inline meter will tell you what it already draws for amperage. Power can be calculated off that. I'll do that if I get a chance.

Did you read anything I just wrote? I already took the readings you speak of and have posted total of everything on the bike in this thread. I posted the current draw of the fan alone just prior to your post. I'm well aware of what Yamaha states in the service manual, but have always found the manufacturers stator ratings optimistic when I do load checks.

Complete list of any significant OEM current draw is as follows....and I am well aware of how to calculate the power consumption as I've already posted that in this thread.

The following readings were taking with with a clamp style ammeter. Did you just read the OP's post and ignore the rest? ???

Headlights 9.3A (low beam) 10.9A high beam

EFI 4.4A

Fan: 5.4A (intermittent)

Ignition: 3A

Tail and running lights 1.2A

ABS: 2.4A (internittent).

A more insignificant intermittent loads is:

ETV (electic throttle valve) 0.3A

All power was calculated using a measured 13.5VDC with engine running.

Sent from my F-05D using Tapatalk 2

 

[JonnyCinco]

I am a complete electricity boob, so getting this stuff together is going to take some time and processing.

Question: how do you now the current rating to use? cbrunsw used 14 and Tenerator12 used 13.5.

And....if any electric wizards want to let me know if I am going to kill my battery....my thoughts are:

1) Garmin 665 - 1 mA
2) Gerbings jacket (and possible pants/gloves) - 6.4 amps (jacket), 3.6 amps (pants), 2.2 amps (gloves)
3) electrified tank bag for charging phone/MP3 player -- ??
4) At the moment, I have the touratech fog light, but thinking of getting the touratech HID and/or the GB on the squadron lights - Touratech does not tell you the amp draw of the fog light. The squadrons draw 44w

Looks like there is not much room to play with. I take it there is no way to increase that power, eh?

 

[digitalmoto]

I am a complete electricity boob, so getting this stuff together is going to take some time and processing.

Question: how do you now the current rating to use? cbrunsw used 14 and Tenerator12 used 13.5.

And....if any electric wizards want to let me know if I am going to kill my battery....my thoughts are:

1) Garmin 665 - 1 mA
2) Gerbings jacket (and possible pants/gloves) - 6.4 amps (jacket), 3.6 amps (pants), 2.2 amps (gloves)
3) electrified tank bag for charging phone/MP3 player -- ??
4) At the moment, I have the touratech fog light, but thinking of getting the touratech HID and/or the GB on the squadron lights - Touratech does not tell you the amp draw of the fog light. The squadrons draw 44w

Looks like there is not much room to play with. I take it there is no way to increase that power, eh?

You might look at an LED driving/fog light. AdvMoto did a review of 4 - 6 different lights a while back. The reviewer liked the Squardron lights. I thought they drew to much for my tastes, so I bought Denali D2. Vision X makes a variety of LED lamps. Twisted Throttle repackages the Vision X lamps and adds a motorcycle specific wiring harness. I went with the D2 more because of my limited time constraints than any burning love of TT. If you search for "Vision X Motorcycle" you should be able to find more options in that vein.
BTW: I've got a similar setup for Garmin 665, my vest outlet + pillion, powered tank bag, heated grips, and driving lights. So far so good.

 

[stevepsd]

You might look at an LED driving/fog light. AdvMoto did a review of 4 - 6 different lights a while back. The reviewer liked the Squardron lights. I thought they drew to much for my tastes, so I bought Denali D2.

If you want to see, buy the Squardron's.

They draw 44 watts at full intensity, less than a headlight bulb (even less with the available dimmer). The Squardron lights are a combo driving/fog light - each Squadron light has 4 individual LED 'bulbs' and reflectors - 2 are driving/spot and 2 are fog/flood beams. Plus they are so bright and have a beam pattern that really lights up the road all around you. I have 2 mounted on mine.

The Denali's produce only 900 luments @10 watts, the Squadrons' are 3600 lumens @ 44 watts. So a single Squadron is like 4 Denali's in one.

 

[JonnyCinco]

yea, I wanted to get in on the group buy, but funds were tight. now I am waiting on the adv group buy