Batteries Securing?

[Noelio Abrunhosa]

Hi.

i am now tidying up the battery compartment and my batteries are very poorly secured.
any suggestions?
regards


Abby

[sailprincess]

Here is what we did (attached pic) with wood and some trucker's knots. Not pretty by any means, but it works!

[Noelio Abrunhosa]

thanks.

That is similar to what i had. i was thinking in the lines of clamps or maybe battery boxes

regards
Abby

[Yngmar]

You can buy battery straps, or make them yourself quite easily with some 25mm webbing and webbing bridges. This is the common method in powerboats, which bounce far more than most sailboats do

My batteries are clamped in with aluminium profiles at the base and a strap for the starter battery.

Battery boxes are only needed for unsealed (FLA) batteries and tend to waste a lot of space (and money).

[heywoodp]

I made up some webbing straps and used webbing bridges. When I replaced my existing batteries last year, I went a little overboard and fitted four. They are anchored both on the false floor and on the side of the panel nearest Alans feet !!. If you blow up the pic you can just see the webbing bridges. I've tidied the cabling up a little since the pic was taken and shortened the leads

[Noelio Abrunhosa]

that looks good. thanks.  going to order some strapping now

regards

Abby

[Craig]

Strapping the batteries down is the best option, unless your batteries have lugs near the base where you can clamp down.

I use straps, but found these still allow the batteries some movement. To counter this, I sprayed polyurethane foam around the base to stop this small movement.

Craig
"Shirley Valentine"
Gold Coast
Australia

[Noelio Abrunhosa]

thanks Craig

great idea.

i have some antiskid matteing from halfors might put some of this down as well

regards

Abby

[Club 56]

Abby

For your information.
Picture attached is of how our batteries came fixed in our V42 (2013).
Boxes are hard plastic or even fibreglass which is screwed to a glassed section on the hull. Batteries held in place with aluminium straps. Rubber strip between strap and battery.
Not saying this is how it should be done but my batteries are very secure.
Batteries are very heavy, I have seen the damage that can be done when a battery broke loose in a friends boat whilst crewing on a offshore race. Happened when we broached gybing the spinnaker.

Make sure any straps or bracing can handle the load and weight of your battery.

Regards
Club 56

[Craig]

I've changed batteries a couple of times now and found it impossible to get replacement batteries of the same size.

That is why I've focused on webbing straps that have a high breaking strain but can be adjusted. The polyurethane foam that I then spray in the gaps, stop the small movement between the securedbatteries. The polyurethane foam is easy to remove when  change batteries.

I also like the idea of using soft plastic matting under the batteries to stop slippage.

Craig
"Shirley Valentine"
Gold Coast
Australia

[Mirror45184]

We used blocks screwed to the underside of the cover. Then screwed the cover down. works well!