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Numax m110 batteries


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#1 Evo

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Posted 01 September 2011 - 10:16 AM

Are these Numax marine deep cycle batteries really true deep cycle batteries. They seems to bugger up as quick as any std leisure battery would.

Are they a slightly jumped up ordinary leisure battery...? What class of battery do they fall in if entering them into a Smartguage. They are basic wet refillable lead acid.
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#2 Tim

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Posted 01 September 2011 - 10:19 AM

Are these Numax marine deep cycle batteries really true deep cycle batteries. They seems to bugger up as quick as any std leisure battery would.

Are they a slightly jumped up ordinary leisure battery...? What class of battery do they fall in if entering them into a Smartguage. They are basic wet refillable lead acid.


Mine are 6.5 years old and still going strong. I don't live aboard though.
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#3 alan_fincher

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Posted 01 September 2011 - 10:21 AM

I think most batteries sold at "Leisure" or "Domestic" batteries probably fall into Gibbo's description of little more than starter batteries with handles on.

The Numax M110s that we have had in the past actually made claims on the label about "dual purpose", either "domestic" or "starter", (I can't recall exact wording though), so I think that rather proves the point that internal construction will be much like a starter battery.

Unless you pay a lot more, the concensus seems to be that is generally the case, so nothing particularly against Numax, (which seem to last rather better than what I was talked into replacing them with.... :angry: ).

EDITED TO ADD:

Even against a description of Deep Cycle, current spect still says......

Advanced semi-traction technology for extreme deep cycling

Dual purpose Engine Start & Auxiliary Capability

A quality, high powered battery engineered with the latest technology for today's marine needs


As I understand it the internal construction required for Starting and deep cycling domestic use are very different, so any battery that claims to be ideal for both has a degree of "economy with the truth" in its marketing, I would say.

Edited by alan_fincher, 01 September 2011 - 10:30 AM.

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#4 Gibbo

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Posted 01 September 2011 - 10:22 AM

They are bog standard leisure batteries.
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#5 Evo

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Posted 01 September 2011 - 11:00 AM

They are bog standard leisure batteries.


Figured as much...!!

Which batteries have people found the most long lived,reliable and cost effective..?

What I'm after is a good quality reasonably priced battery that really is deep cycle....do they exist.?

All 3 of us are fed up of these cheapo batteries sending you are back and forth with guarantees until you
get a decent set. I'm sure they rely on selling crap and most people not bothereing with the guarantee.
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#6 smileypete

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Posted 01 September 2011 - 12:56 PM

Figured as much...!!

Which batteries have people found the most long lived,reliable and cost effective..?

What I'm after is a good quality reasonably priced battery that really is deep cycle....do they exist.?

All 3 of us are fed up of these cheapo batteries sending you are back and forth with guarantees until you
get a decent set. I'm sure they rely on selling crap and most people not bothereing with the guarantee.

Are you happy enough with the answers so far?

cheers,
Pete.
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#7 Gibbo

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Posted 01 September 2011 - 12:59 PM

What I'm after is a good quality reasonably priced battery that really is deep cycle....do they exist.?


Basically no. The proper deep cycle batteries are all expensive. Unless you drop lucky and come across some fork lift/milk float batteries going cheap.
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Gibbo

#8 Evo

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Posted 01 September 2011 - 01:11 PM

Am I happy with the answers so far..???


is there some sort of sarcastic intent in that, if so its wasted on me.


If not then yes, its confirming what i thought.
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#9 cereal tiller

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Posted 01 September 2011 - 01:12 PM

i purchased 6 100 amp hour numax batteries in december 2010,they did not perform as well as expected,and appeared to have only 50% of stated capacity ,about 100 amp hours was available,i hoped for 200-ish.

the boat was used at xmas for 2 weeks,during which time the batts. continued to decline,since march the boat has been cruised continuously with only a total of 2 weeks on its home mooring.



a 4 step charger looks after them when the boat is on shoreline power,when cruising ,the main engine can provide 150 amps. with 3 step voltage regulation.

i estimate that the present available capacity is now down to 60-65a/hrs.

wont be buying NUMAX again! but ,they do have nice handles,so it will be easy to lift them off the boat,which will be soon.
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#10 smileypete

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Posted 01 September 2011 - 01:17 PM

is there some sort of sarcastic intent in that, if so its wasted on me.


If not then yes, its confirming what i thought.

<sigh> Sorry, just didn't want to get embroiled in another long discussion for nothing.

I can send you a PM later if you're interested?

cheers,
Pete.

Edited by smileypete, 01 September 2011 - 01:17 PM.

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#11 Gibbo

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Posted 01 September 2011 - 01:20 PM

I can send you a PM later if you're interested?


That's it, take it to a PM so everyone else doesn't pick holes in what we can probably correctly assume will be incorrect advice :lol:
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#12 smileypete

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Posted 01 September 2011 - 01:32 PM

That's it, take it to a PM so everyone else doesn't pick holes in what we can probably correctly assume will be incorrect advice :lol:

Don't worry, I'll provide data to back up exactly what I say.

I don't need smoke and mirrors or to call anyone a dick either.

Sorry Gibbo, it's a beautiful day and I've got better things to do.

cheers,
Pete.
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#13 nb Innisfree

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Posted 01 September 2011 - 01:42 PM

A ccer's batteries get totally abused, period, there's no other way, so get cheapest ones and don't waste too much diesel on them and replace when knackered.

A consideration when choosing, get ones with nice moulded handles which makes replacing them on a regular basis a less arduous task, also get ones with different coloured caps then every time you look at them it gives you a pleasant feeling, very important this as it compensates for the bitter disappointment when they don't live up to their hype.
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#14 Gibbo

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Posted 01 September 2011 - 01:44 PM

I don't need smoke and mirrors or to call anyone a dick either.


You have nothing except "I don't think it is". You ask for evidence, when you're given it, you simply refuse to believe it, no matter how many different sources are cited. You'll never learn owt.

You deny the 50% rule.

Mastervolt
Cruising Equipment
Heart Interface
Amplepower
SmartGauge

And many, many more (the list is almost endless)

All state it's validity.

A boater with a meter says it's wrong. Who are people going to take seriously?
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Gibbo

#15 steelaway

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Posted 01 September 2011 - 02:12 PM

Figured as much...!!

Which batteries have people found the most long lived,reliable and cost effective..?

What I'm after is a good quality reasonably priced battery that really is deep cycle....do they exist.?

All 3 of us are fed up of these cheapo batteries sending you are back and forth with guarantees until you
get a decent set. I'm sure they rely on selling crap and most people not bothereing with the guarantee.




I have always been happy with the performance of my ....U.S. Battery's..... or .........Trojan T105
I am on my second set after 6 years.
Make sure you buy genuine battery's there are many 'sticky label' fakes out there

Alex
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#16 Evo

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Posted 01 September 2011 - 02:18 PM

I think we are pretty much experiencing what cereal killer did. Its another one of those things you buy and cant really test that what you have is what they say it is or will cycle as many times as they say.

I dont want to get these people on new charging regimes and looking after their batteries as if they were their kids if there is going to be no improvement because the batteries are just shit and will only last so long anyway.
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#17 nb Innisfree

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Posted 01 September 2011 - 02:22 PM

I think we are pretty much experiencing what cereal killer did. Its another one of those things you buy and cant really test that what you have is what they say it is or will cycle as many times as they say.

I dont want to get these people on new charging regimes and looking after their batteries as if they were their kids if there is going to be no improvement because the batteries are just shit and will only last so long anyway.


If it's doubtful whether you have shit batts or not then play safe and pay cheap shit prices.
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#18 Chalky

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Posted 01 September 2011 - 02:52 PM

Basically no. The proper deep cycle batteries are all expensive. Unless you drop lucky and come across some fork lift/milk float batteries going cheap.


I came across some Varta stop-start batteries the other day. They claim to be able to cope with deep discharge high current applications that are found in the latest generation of vehicles. Basically the car engine is stopped each time the car stops and then re-starts when you want to move off. Potentially they can run very low and still have to start the engine. Any thoughts on their suitability for domestic batteries? Can't afford them, just interested.
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#19 Gaffer

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Posted 01 September 2011 - 04:01 PM

As someone who sells batteries (amongst many other things) including Numax, I'd just add that as usual you get what you're prepared to pay for. Everyone is looking for a bargain and chandleries have to price accordingly and stock products that people will actually buy. The principal factor that affects how well a battery will hold charge is the amount of metal in the battery - and lead is VERY expensive at the moment. If customers asked what a battery weighed rather than what price, they might get more sensible answers !
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#20 Gibbo

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Posted 01 September 2011 - 04:06 PM

I came across some Varta stop-start batteries the other day. They claim to be able to cope with deep discharge high current applications that are found in the latest generation of vehicles. Basically the car engine is stopped each time the car stops and then re-starts when you want to move off. Potentially they can run very low and still have to start the engine. Any thoughts on their suitability for domestic batteries? Can't afford them, just interested.


I've been meaning to play with those for a while, but haven't got round to it.

I do know that even bog standard truck batteries have seen a massive improvement over the last ten years and they handle our sort of cycling infinitely better than they did (say) 20 years ago. I see no reason why these new ones wouldn't be even better.
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