high output alternators / boards

[dlaing]

Had a quick test this afternoon,

23.6A @12 engine not running, Headlight through aditional relays, otherwise stock + Oxford heated overgrips, fuel pump running.

 

Started engine

20.2A @14v, after allowing for batt recharging, from start up. at an indicated 1800rpm.

 

this is 283w

 

above 2500rpm i was getting a lot of fluctuations on the Volts and Amps, which I have traced to some crusty electrical connections. so they are added to the list of to do jobs this winter whild

st its laid up

 

so if you are running 60w heated clothing you will require 343w  =24.5A@14v

which would require 4000rpm to balance the system

I.E below 4000rpm discharging batt, above 4000rpm charging batt

66229[/snapback]

Nice work, DVH!

I guess I was off on my estimate that 60W accessories would need 3000RPMs.

Are your Oxford Grips the "Oxford Hot Hands", with 1.3A/18W draw? (seen here? )

I wonder if that rating is 1.3A per grip?

[DVH]

Thats the grips

 

I knew there was a link somewhere with regards to these batts and charging, it is mostly aimed at HD bikes but I note there charge output is very similar

 

/www.enersysreservepower.com/v_twin.asp