Battery Reg/Rec Opperation

[Kang]

I am clueless to the workings of electricity to start with.
So after the bike lying up for the Christmas and New Year the battery decided to pack in yesterday. Charged it up Sunday made it in to work (13m) to discover it was drained. Got it charged in work and got home.
So bought a new battery last night put it in and it fired nicely.
Now..... I have a very cheap battery tester which also doubles as a Reg/Rec tester too.
After I fire up the bike I turn it off test it all ok. Then I fire her up and nothing in regards the Reg/Rec (idle) so I bring up the revs and the R/R leds start lighting up.

Is this normal operation between Reg/Rec and the battery????

[agricola]

dont know how your tester is supposed to work, but simpler is to check the voltage between the + and - terminals on the battery with the motor running. At idle, should read around 12.5 to 13.5 volts. At 3000rpm should be up around 13.5 to 14 .5, no more than that. Increasing the revs more shouldnt increase the voltage. Have a look here

https://www.dropbox.com/s/b1x1ojthv4h7925/Troubleshooting%203P%20PMG%20%26%20RR.pdf?dl=0