Hi,

I have a 2010 Fatboy with passing lamps fitted.

It currently runs H3 35 watt halogens bulbs in the passing lamps. I want to upgrade to  brighter 55 watt bulbs.

The question is; will my electrical system run this extra load?

I am not sure what the output of the electrical system is. Would I be overloading the charging system?

I am still running the standard headlight,  H4 60/55 W. I will be changing the halogen headight bulb to a brighter H4 60/55 bulb ( Phillips X-Treme Vision) very soon, too.

 

Thankyou

 

Cheers

 

Charging system will be more than covered.

I'm prety sure the 2010 twin cams run a 38 amp alternator now.  and a 40 amp main fuse.

At 12 volt X 38 amp = 456 watts

At 13 volt X 38 amp = 494 watts

 

High beam          60 watts

Passing lights  110 watts

tail light                   5 watts

stop light              21 watts

turn signals         42 watts

ECM/fuel pump   20 watts

 

Total =                 258 watts = 21.5 amps

 

( leaves 198 watts/16.5 amps to spare at 12 volts, a little more at 13 volts)                       

gday, with your h4 phillips have just released the new plus 100, i havnt tried them yet (we only got stock this week) but i am running at present the crystal vision (very good). never tried the plus 80 but my rep did in the company car and didnt like them.

Are you running a relay with the passing lamps?

 

 

Cheers

i have been running 55watt globes in the passing lamps on my heritage for 18months with no dramas.