Reply
 
Thread Tools Search this Thread
 
Old 21 January 2011, 04:15   #11
RIBnet admin team
 
willk's Avatar
 
Country: Ireland
Make: Redbay Boats
Length: 9m +
Engine: 370hp
Join Date: Feb 2008
Posts: 12,925
RIBase
Quote:
Originally Posted by rayfish2 View Post
by 1 big one, you thinking of 110 amp lesuire or landrover type battery, or 2 small ones on a switch over system, got plenty of room under console for both....
In an ideal world (with one motor) I would have two batteries. One with high CCA for starting and another deep cycle one for the electronics. I would use a fancy switch to prioritise charging to the starting battery, leaving the deep cycle to suck up the pain of running the lekkie while fishing etc.
__________________

__________________
willk is online now   Reply With Quote
Old 21 January 2011, 04:21   #12
Administrator
 
John Kennett's Avatar
 
Country: UK - England
Town: Brighton
Length: 3m +
Join Date: May 2000
Posts: 6,830
The Mercury/Mariner Outboard Electrical FAQs says for a 90hp you need a minimum of 350 CCA for a 4-stroke or 450 CCA for a 2-stroke.

Unless you are going to be running a lot of auxiliary electrics, and using them for long periods when the engine is off, there's no reason to get a deep cycle battery.

I would just get something straightforward from Halfords and look after the receipt in a safe place. They have a three or four year guarantee and seem to be pretty good at honouring it. Unfortunately they appear to have forgotten to renew their domain name so www.halfords.com is broken at the moment!
__________________

__________________
John Kennett is offline   Reply With Quote
Old 21 January 2011, 04:54   #13
RIBnet admin team
 
willk's Avatar
 
Country: Ireland
Make: Redbay Boats
Length: 9m +
Engine: 370hp
Join Date: Feb 2008
Posts: 12,925
RIBase
Quote:
Originally Posted by John Kennett View Post
Unless you are going to be running a lot of auxiliary electrics, and using them for long periods when the engine is off, there's no reason to get a deep cycle battery.
He's a bass fisher. They lurk about a lot with the donkey off and the lekkie on.

A kettle is murder on a battery
__________________
willk is online now   Reply With Quote
Old 21 January 2011, 04:58   #14
Administrator
 
John Kennett's Avatar
 
Country: UK - England
Town: Brighton
Length: 3m +
Join Date: May 2000
Posts: 6,830
OK, definitely a twin battery setup then with a kin huge leisure battery and a 4kw inverter
__________________
John Kennett is offline   Reply With Quote
Old 21 January 2011, 06:25   #15
Member
 
Country: UK - England
Town: Southampton
Boat name: SMH Rib / War Shot
Make: Ribtec / Scorpion
Length: 4m +
Engine: 10hp Yam / 150hp opt
Join Date: Sep 2003
Posts: 1,894
RIBase
90hp 2 stroke?

If your engine is a 2 stroke mariner then the smallest and cheapest battery you can get from halfords will be more than enough. (Probably available much cheaper than halfords though).

Had this on my SR5.4 with a 90hp mariner and gave 3 years good service whilst owned the boat.

90hp 2 stroke can be started by hand.

2 batteries is nice but not really needed.
__________________
Searider is offline   Reply With Quote
Old 21 January 2011, 07:04   #16
Member
 
Country: UK - Wales
Town: Prestatyn
Boat name: Ray fish 2
Make: Caribe
Length: 6m +
Engine: Outboard Petrol
MMSI: 235085991
Join Date: Oct 2010
Posts: 74
electronics, as wilk says must drain the power source when enginge not running, but its a case mindset, knowing the engine will fire first turn of the key, 20 times a day when drift fishing, the swellies is not the place to praying it will start, welsh bass are harder to catch than their irish relatives, leaning towards 11o amp lesiure batt, and putting 85amp halfords batt to run livebait well at back of rib, whale 9lrt per min drawing 9amps per hr, could switch to this on way back to slipway 20 miles away this i hope will charge for next time...
wilk do you use livebait well or does any ribshers use one,
we should take a few pictures this year and post them, there must be a good few ribshers here, does this set up sound like it would work.....
__________________
rayfish2 is offline   Reply With Quote
Old 21 January 2011, 10:20   #17
RIBnet admin team
 
willk's Avatar
 
Country: Ireland
Make: Redbay Boats
Length: 9m +
Engine: 370hp
Join Date: Feb 2008
Posts: 12,925
RIBase
I think (iirc) my sounder module is drawing an amp, the plotter/display a fair bit less. VHF is always on, but not a big draw on rx. My twin rig draws all the lekkie kit juice from one battery and I notice it is always slower to charge than the other side when I top up between trips.

BTW Rayfish2, I do most of my fishing on Ribnet
__________________
willk is online now   Reply With Quote
Old 21 January 2011, 10:40   #18
RIBnet supporter
 
Erin's Avatar
 
Country: UK - Channel Islands
Town: A large rock
Boat name: La Frette
Make: Osprey Vipermax
Length: 6m +
Engine: 200 Suzzy
Join Date: May 2004
Posts: 2,830
Quote:
Originally Posted by willk View Post

BTW Rayfish2, I do most of my fishing on Ribnet
Easier to catch and no EU quota yet .

Back OT, I gave some though to power usage, and reckon the average setup maybe draws 2 or 3 amps when fishing. That's mean your single battery would give you 30hrs or more before being depleted. Can't imaging anyone going out fishing and not at least restarting their engine (recharging batts) for much more than 4 hours or so at a time.
Erin is offline   Reply With Quote
Old 21 January 2011, 10:44   #19
Member
 
gohelm's Avatar
 
Country: Netherlands
Town: Goudswaard
Boat name: mr D
Make: Deltapower
Length: 6m +
Engine: Yamaha f300 BETU
Join Date: Nov 2010
Posts: 233
RIBase
optima?

If you are ready for an investment: I am very happy with the double optima battery setup in my boat as well as single for my car - they are rather expensive but they do not have any fluids inside(reckon that to be a plus in a boat) and they are, in my (limted) experience, very long lasting... (my 4x4 car starts without complaints, even when left in the shed in excess of 3 months without recharging)
__________________
gohelm is offline   Reply With Quote
Old 23 January 2011, 16:17   #20
Member
 
Country: UK - Wales
Town: west wales
Make: humber destroyer 5m
Length: 5m +
Engine: 90 yamaha
Join Date: Apr 2010
Posts: 202
'Leisure' type lead acid batteries (known as 'deep cycle') are designed to give a small current for a long time for running lights etc (or your fishfinder) and to be repeatedly recharged, but are not designed to give a high starting current for starting a big engine (but cope with small outboards ok) Normal car/commercial type batteries are designed to give a high starting current but not to discharge slowly over a long period and do not like being run flat and repeatedly recharged.
Hence the suggestion to have one of each if room and funds permit.
For our sailing club ribs with 30/40 hp outboards and no electronics we use the cheapest available car battery (part number 063) and chuck them away after three or four years.
More expensive batteries for serious boating are specially designed to cope with being shaken about and can be gell type or have thicker plates and more room below the plates to prevent the plates shorting.
My bigger boat (yacht not a rib) has a truck battery for starting the engine and a pair of leisure batteries for the lights,plotters etc,with change over/isolation switches for charging.

And now I'll go and wash my mouth out with soap for mentioning sailing and yachts on here........
__________________

__________________
bosun is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 18:13.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.