same old battery question...kinda

[stefan_r]

Have just taken delivery of my 1999 Superhawk and I am a happy boy.

Disappointment though as batteries appear knackered.

Configuration is 2x services and 1 port, 1 starboard starter.

Existing power is from 4 of the same brand, unlabelled tired looking lumps.

Question is as they are unlabelled and if I am going to replace all of them what should I go for?

The 2x engine will be starting 300hp Yanmars.

The 2x domestic will run a telly, fridge, electric bog and a few other oddments when we're not on shorepower.

Maximum dimensions I can fit are Width 18cm x Length 35cm each battery...height isn't an issue.

Happy to pay now for more juice than need to be constantly on shorepower when in the marina.

cheers!

 

[hlb]

Well one battery is plenty for starting engines and you can always cary a jump lead if needed, so that would be 50% increase in domestic supply to begin with.

 

[volvopaul]

see my previous post on mercruiser batteries the same will do your engines and boat. unless you want to fit deep cycle domestic ones.

 

[duncan]

shame about your space - personally I was introduced to the varta pro motive range by a comercial supplier as they fit them to coaches, trucks with loading ramps etc and they combine fit and forget with CCA and discharge rates associated with high drain functions.

They are however too big for you at 19cmx53cm.

Being a standard high volume item they worked out very economical when I looked a few years back though - sub £100 for 180Ah/1000CCA.

 

[stefan_r]

[ QUOTE ]
They are however too big for you at 19cmx53cm.


[/ QUOTE ]

That sounds like the sort of thing I am after...have you found after market battery boxes to fit them in or did your boat have a large capacity box built in?

Stef

 

[brianrunyard]

Is it a good idea to start both engines from the same battery?

 

[stefan_r]

nope...it is definitely bad form.

I have 1 battery per engine and a pair of dedicated services batteries for exactly that reason...

 

[duncan]

but it's good form to be able to strart either engine from either (or better any) battery!

 

[duncan]

more like 'battery area' than battery boxes......not a BSS configuration I suspect!