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Battery Choice

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Created by lydia Tuesday, 14 Jan 2020
lydia
984 posts
Tuesday , 14 Jan 2020 5:05AM
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So I have a choice for heavy duty start battery (N 200)
Exide or Marshall or Century
Difference in price not relevant as want the reliability at all costs
Any thoughts anyone.
Romana you there?

lydia
984 posts
Tuesday , 14 Jan 2020 5:14AM
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Price difference seems by from about $350 to $550 btw
Plan to go with Century but appreciate other comments

woko
NSW, 561 posts
Tuesday , 14 Jan 2020 8:44AM
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I've had a good run with century

SunsetSailer
TAS, 29 posts
Tuesday , 14 Jan 2020 8:52AM
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Have had excellent results with Delkor Calcium in a number of applications over a few years. Talk to Island Batteries in Derwent Park Rd

Ramona
NSW, 5378 posts
Tuesday , 14 Jan 2020 9:04AM
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That's an awfully big start battery. What are you starting?

lydia
984 posts
Tuesday , 14 Jan 2020 6:49AM
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Ford leemans

aus005
TAS, 494 posts
Tuesday , 14 Jan 2020 12:42PM
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I just bought 2 n200 batteries from norco in devonport paid $390 each and they came and fitted them for that as they are a bit over 50 kg each
not sure what brand they used start my ford leeman very easily.

jdol
NSW, 14 posts
Tuesday , 14 Jan 2020 2:30PM
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What battery would you recommend to run a fridge compressor for a live aboard without shore power in the tropics?

Current boat set up has x4 lead/acid type, maybe 80 ampere hour? supplied by 110 watt solar panel.

This is sufficent to run 12v fans, led cabin lights, charge devices, nav lights etc. but I am soon to install a fridge and I wonder the options.


A. dedicated deep cycle battery for fridge only
B. dedicated LiPo?

Perhaps the question is too vague, any advice appreciated.

Regards, Josh.

shaggybaxter
QLD, 1945 posts
Tuesday , 14 Jan 2020 1:56PM
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Hi Lydia,
I need to buy 2-4 x 100ah batteries that got screwed from the vandalism, so handy and timely thread!
We should try for a bulk purchase :)

Ramona
NSW, 5378 posts
Tuesday , 14 Jan 2020 6:22PM
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Select to expand quote
jdol said..
What battery would you recommend to run a fridge compressor for a live aboard without shore power in the tropics?

Current boat set up has x4 lead/acid type, maybe 80 ampere hour? supplied by 110 watt solar panel.

This is sufficent to run 12v fans, led cabin lights, charge devices, nav lights etc. but I am soon to install a fridge and I wonder the options.


A. dedicated deep cycle battery for fridge only
B. dedicated LiPo?

Perhaps the question is too vague, any advice appreciated.

Regards, Josh.


I would only use flooded lead-acid batteries in a boat. One small starter battery in one bank for the engine starting only. Second bank a whole pile of 6v golf cart batteries, as many as you can fit. For a liveaboard checking the batteries should be a daily operation. I would suggest checking out the cruising forums for battery suggestions for this style of yachting.
www.cruisersforum.com/forums/f14/

I use two deep-cycle lead-acid batteries, one in each bank with each having its own solar panel and regulator. I don't have any need for a fridge.

Ramona
NSW, 5378 posts
Tuesday , 14 Jan 2020 6:29PM
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Select to expand quote
lydia said..
Ford leemans


I used to use N70's, one in each bank and alternate them each day. Started a 6 cylinder Gardner easily.

lydia
984 posts
Tuesday , 14 Jan 2020 6:21PM
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Select to expand quote
Ramona said..


jdol said..
What battery would you recommend to run a fridge compressor for a live aboard without shore power in the tropics?

Current boat set up has x4 lead/acid type, maybe 80 ampere hour? supplied by 110 watt solar panel.

This is sufficent to run 12v fans, led cabin lights, charge devices, nav lights etc. but I am soon to install a fridge and I wonder the options.


A. dedicated deep cycle battery for fridge only
B. dedicated LiPo?

Perhaps the question is too vague, any advice appreciated.

Regards, Josh.




I would only use flooded lead-acid batteries in a boat. One small starter battery in one bank for the engine starting only. Second bank a whole pile of 6v golf cart batteries, as many as you can fit. For a liveaboard checking the batteries should be a daily operation. I would suggest checking out the cruising forums for battery suggestions for this style of yachting.
www.cruisersforum.com/forums/f14/

I use two deep-cycle lead-acid batteries, one in each bank with each having its own solar panel and regulator. I don't have any need for a fridge.



Like the man said.
I have twins so I have a dedicated start for each engine with a bank (8) of 6v for house power, frig etc
The generator start is also the anchor winch and can used as a start back up.
Thanks btw Ramona

jdol
NSW, 14 posts
Wednesday , 15 Jan 2020 2:15PM
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Thank you for the reply

Jolene
1122 posts
Wednesday , 15 Jan 2020 6:51PM
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These days why would you want to fill your boat with corrosive fuming flooded lead acid batteries especially ones that need maintaining

zilla
125 posts
Wednesday , 15 Jan 2020 7:57PM
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The choice I made for my yacht was AGM batteries - both for the start battery and the house battery bank. My view is that any yacht going to sea should be as safe as possible if it ever happens to be upside down. That means no battery acid dripping on my head or in the bilges (and internal ballast secured, batteries secured, hatches secured, etc, etc.) By "secured" I mean that nothing falls out when the boat is upside down.
All it boils down to risk assessment and personal choice.

Tregs
1 posts
Saturday , 18 Jan 2020 12:59PM
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Select to expand quote
jdol said..
What battery would you recommend to run a fridge compressor for a live aboard without shore power in the tropics?

Current boat set up has x4 lead/acid type, maybe 80 ampere hour? supplied by 110 watt solar panel.

This is sufficent to run 12v fans, led cabin lights, charge devices, nav lights etc. but I am soon to install a fridge and I wonder the options.


A. dedicated deep cycle battery for fridge only
B. dedicated LiPo?

Perhaps the question is too vague, any advice appreciated.

Regards, Josh.

Do you have a separate battery for a starter or just one bank of batteries everything runs off? Its a good idea to have a separate battery because if you run your bank down with fridge/electronics you wont be able to start your motor if you need.As far as your setup is that 4x80ah or 4x20ah=80ah. I'm assuming 4x80 so 320ah. that is a reasonable size bank for just running nav, led lights and a fridge. The power draw on a portable camping type fridge/freezer depending on size/ambient temp/internal temp can be anywhere from 1.5-5amps per hour. You should be able to find that info before you purchase one from the manufacturers. If you say on average 2-3 amps per hour, that's 50-70 amps per day. Nav and lights shouldn't use heaps of power, so on your current setup with no charging you could probably run 2 days, maybe a little more. With lead acids you shouldn't take them past much past 50% discharge or you risk damaging the cells. so even though you may have 320 ah, you only really have 160-200ah of usable capacity.

Now you need to think about charging. A single 110 w panel probably only gives you 4-5 amps per hour charge (rough estimate) at peak. you don't have peak all day, so on average in summer I assume output for 8 hour peak is about what you will get for the da, so 30-40 amps. So you are using more than you can charge unless you run a generator/alternator or shore power.
Moral of the story, your bank size will probably be fine (a little small, not heaps of contingency time) but another solar panel or 2 would be much more beneficial rather than another battery.

As far as LiPo goes I highly recommend them if you can afford it, I just put 500Ah of GenZ LiFePO4 batteries in my yacht last week, and have a second 500ah coming as I am using induction cooking on the boat. For high loads like that it just makes sense. Also I prefer not to have lead acid batteries and LPG gas on the boat but that's a personal thing. Also once I removed the existing 200AH lead acids and nearly breaking my back the lighter weight replacements were very appealing. But the problem now is charging. its all good having lots of power storage but you need to be able to generate it somehow

Hopefully this makes sense, and all those numbers are just rough estimates so forgive me if I am wrong

Cheers
Josh



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"Battery Choice" started by lydia