I am currently weather bound in Scotland waiting for a chance to sail to St Kilda, its been a week already (excepting a couple of day sails for shopping) and am likely to be here for much of the next 10 days or more so having done all the odd jobs I can on the boat I am writing up some guidance on boat electrics.
Disclaimer: My first career was in electronics and at one time I was a corporate member of Institution of Electronics and Electrical Incorporated Engineers, (now merged with others to be the Institution of Incorporated Engineers) but that was a long time ago, similarly I once worked for the worlds largest manufacturer of industrial Lead Acid batteries but as IT Director not on the produce side so no responsibility is accepted or implied by anything written on this web site, use at you own risk and take advice from a currently qualified expert as you think appropriate, particular regards shore power.
Examples are often from my boat showing the equipment I used or inherited, other makes and types are available. I have explained some of the alternates but not all, this is a series of blog posts not a book! Some of the more complex topics are stand alone blog "pages", others are "normal" blog postings, the latter will open in a new window, pages will, when I have finished, have discrete links between.
- Fusing & Mains power on board:
- Consumer units.
- Galvanic Isolators (Zinc savers).
- Types of Battery.
- By use: Traction, Reserve Power, Starter, Dual Purpose (Leisure).
- By Technology: Flooded, Valve Regulated (VRLA), Absorbent Glass Mat (AGM), Thin Plate (TPLA).
- How much battery?
- Engine start.
- Service / domestic.
- Rules for connecting batteries in parallel and in series.
- Manual charge control.
- Automatic charge control.
- Integrating solar and / or wind generators.
- Blocking diodes.
- Battery management.
- Getting more from your Alternator.
- Battery Monitoring.
- Battery charging strategies.