Cotillion
Well-Known Member
I want to add another starter battery (car type) but can’t find anywhere flat to put it. Is there any reason why it can’t lie at an angle, i.e. in the cockpit locker?
Battery
- Thread starter Cotillion
- Start date
PaulRainbow
Well-Known Member
You can fit an AGM battery as per your diagram, or you could fix a piece of ply in the bottom of the locker.
Last edited:
Lucy52
Well-Known Member
Either way you need to find a way to tie it down so that it doesn't go for a dance and break loose.
LadyInBed
Well-Known Member
No good for Lead Acid batteries, the plates need to be covered.
Build a secured frame and mount it on that.
Build a secured frame and mount it on that.
Quandary
Well-Known Member
I dealt with a similar problem last winter, step one - modified a cardboard box to replicate battery ( 3d template)
Took template to boat and tried it in various locations until happy with attitude, cable length, fuse position etc.
Used some cardboard sheet to make templates in situ for box (short spirit level useful here) shaped gables extend to floor to take weight
Retired to workshop and made a wooden battery box, including strop for extracting battery from box, slightly oversize for plastic lining.
Made fitted lid with apertures for cables, (Boat Safety Scheme demands that batteries are covered), rope securing strap extends to floor of box.
Varnished box then bolted one side securely to bulkhead, ends are shaped to transfer weight to curved floor of locker.
Tested for robust security, fixed fuse holder on outside end of box next positive cable. Crimped new cables and modified old ones.
Took template to boat and tried it in various locations until happy with attitude, cable length, fuse position etc.
Used some cardboard sheet to make templates in situ for box (short spirit level useful here) shaped gables extend to floor to take weight
Retired to workshop and made a wooden battery box, including strop for extracting battery from box, slightly oversize for plastic lining.
Made fitted lid with apertures for cables, (Boat Safety Scheme demands that batteries are covered), rope securing strap extends to floor of box.
Varnished box then bolted one side securely to bulkhead, ends are shaped to transfer weight to curved floor of locker.
Tested for robust security, fixed fuse holder on outside end of box next positive cable. Crimped new cables and modified old ones.
Cotillion
Well-Known Member
Like your reply but being a lazy old git, it’s just the level of labour I was hoping to avoid.
RichardS
N/A
Stemar
Well-Known Member
Yes, but the acid isn't slopping around.
Without checking prices, I'd think it would be cheaper and probably more secure to build a shelf and fit a car battery than to get AGM.
Without checking prices, I'd think it would be cheaper and probably more secure to build a shelf and fit a car battery than to get AGM.
RichardS
N/A
Upnorth
Well-Known Member
If you are short of space try this.
I fitted one of these Varley Red Top 30 Racing Battery
with this bracket Varley Red Top 30 Battery Bracket
Allowed me to fit the starter battery beside the engine. nice short cables to the starter. All you need to check is that the cranking amps are suitable for your engine. I use mine on a Yanmar 2GM20. On the site there are other batteries with more or less cranking amps.
Not the cheapest option but dead easy to fit, only thing you might need to add is a local battery isolator switch.
I fitted one of these Varley Red Top 30 Racing Battery
with this bracket Varley Red Top 30 Battery Bracket
Allowed me to fit the starter battery beside the engine. nice short cables to the starter. All you need to check is that the cranking amps are suitable for your engine. I use mine on a Yanmar 2GM20. On the site there are other batteries with more or less cranking amps.
Not the cheapest option but dead easy to fit, only thing you might need to add is a local battery isolator switch.
LadyInBed
Well-Known Member
Not to many car batteries are AGM!
Nit picking won't help the OP much.
RichardS
N/A
I would have suggested that almost all cars with stop/start use AGM batteries but that would be nit picking.
I suggest that you find a thread you can contribute meaningfully to.
Richard
LadyInBed
Well-Known Member
Sounds like you had a bad night, is self isolation getting to you?I would have suggested that almost all cars with stop/start use AGM batteries but that would be nit picking.
I suggest that you find a thread you can contribute meaningfully to.
Richard
[70521]
Well-Known Member
I've just replaced all my batteries with AGM, not that much more expensive than lead, just don't buy them from Halfords. I have also built a shelf, but that is more about access and being tidy.
STILL AFLOAT
Well-Known Member
Sorry, AGM batteries, stand for Absorbed Glass Matting ! THEY ARE NOT LEAD ACID !
You can shoot holes, in an AGM battery, and nothing will leak !
On top of that, even with a few bullet holes AGM batteries, still work ! Dont ask !
I had an oddesy AGM battery, in my Moto Guzzi, and it was fitted,stood on end !
Lasted 80 000 miles !
Get an AGM and even fit it upside down, if you want !
You can shoot holes, in an AGM battery, and nothing will leak !
On top of that, even with a few bullet holes AGM batteries, still work ! Dont ask !
I had an oddesy AGM battery, in my Moto Guzzi, and it was fitted,stood on end !
Lasted 80 000 miles !
Get an AGM and even fit it upside down, if you want !
STILL AFLOAT
Well-Known Member
No, they are not !I think that AGM batteries are also lead acid.
Richard
All you need to do, is use google !
Ive had an AGM battery ( Odessy ) fitted, stood on end, in my Moto Guzzi 750, for about 80 000 miles !
alan_d
Well-Known Member
That is like saying a dog is a mammal, not a quadruped. AGM batteries differ from flooded lead–acid batteries in that the electrolyte is held in the glass mats, as opposed to freely flooding the plates., but the chemistry is still lead-acid.
STILL AFLOAT
Well-Known Member
AGM Batteries can be fitted any way you want !
Stood on end, sideways, whatever.
Ok I have not seen any fiitted upside down, but there is no reason, why that wouldnt work !
They are Not LEAD ACID ! There is no liquid !
They do not leak !
Some people, should use google , before posting antiquated or nonsensical answers !
Stood on end, sideways, whatever.
Ok I have not seen any fiitted upside down, but there is no reason, why that wouldnt work !
They are Not LEAD ACID ! There is no liquid !
They do not leak !
Some people, should use google , before posting antiquated or nonsensical answers !
Alan S
Well-Known Member
AGM batteries contain lead and sulphuric acid as do gal and FLA.
STILL AFLOAT
Well-Known Member
No, wrong... They differ, since there is no liquid to spill, dunno what theaters you have ever been in, but a lead acid battery with a couple of AK 47 rounds though it , is a dead battery !
An AGM battery, with a couple of bullet holes in it, makes no difference
nothing leaks out ,and the outboards, start perfectly !
