Electrickery.........

Anything related to Lambrettas... ask tech questions, post helpful info, or just read and learn.
bristolmod
registered user
Posts: 1741
Joined: Wed Jan 07, 2009 8:42 am
Main scooter: Lambretta TV175 S3- what else!
Location: Bali-Hai bar, Locarno Ballroom Bristol, 1967!- mines a Brown Split!!
Contact:

Sorry- when it comes to the black art of electrics I'm as thick as they come. :shock:

At present I have a TV175S3 with 12v electronic fitted. Runs well with great lights etc.

My question is, if I want to fit and charge whilst running, a 12v battery, is it just a question of changing the existing 3 pin regulator to a 4/5 point one and take a lead from one of the pins to the battery?

If so, what regulator do I need, and which pin do I use?

Many thanks Gents.

Chris
Scootering since 1968.
User avatar
coaster
registered user
Posts: 3125
Joined: Wed Jan 07, 2009 12:35 pm
Location: London and Norfolk
Contact:

You need a PX 5 pin regulator and take a wire from the terminal marked (I think) B+ to the battery. Put a fuse in either the positive or negative feeds to the battery rated at slightly more that the total amps to be drawn from it at any time, probably 5amps or so should do it, less if it's only for a phone charger.
bristolmod
registered user
Posts: 1741
Joined: Wed Jan 07, 2009 8:42 am
Main scooter: Lambretta TV175 S3- what else!
Location: Bali-Hai bar, Locarno Ballroom Bristol, 1967!- mines a Brown Split!!
Contact:

Cheers Coaster- thanks for the info.
Scootering since 1968.
Chris in Margate
registered user
Posts: 379
Joined: Thu Sep 03, 2009 7:53 pm
Main scooter: Lambretta 1964 225 Special
Contact:

Some Lambretta 5 pin regulator require a strap between output and one of the additional pins.
Cheaper way is the little half wave rectifier gizmo from ScootRS; just tap across the output and the the other side to battery.

OR The Modcharger.
Post Reply Previous topicNext topic
  • Information
  • Who is online

    Users browsing this forum: Google [Bot] and 14 guests