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Old 03-11-16, 02:55 PM   #21
sinna42
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From all my marine experiences of batteries & having read much on the matter here are my thoughts :

The more the depth of discharges the less will be the number of cycles you'll get out of the battery.
I try to never go below 50% depth of discharge.

Always ensure the battery is properly charged. Regular undercharging just lessens the battery life.

For my engine start battery I use one of these Red Flash batteries : http://www.dmstech.co.uk/red-flash/red-flash-high-rate/
Very impressed with the performance.

For the "house" loads I use Lifeline batteries : http://lifelinebatteries.com/products/marine-batteries/
Certainly not the cheapest around, but life expectancy of 1000 cycles at 50% dod was very good.
See battery manual - some interesting stuff in there : http://lifelinebatteries.com/wp-cont.../12/manual.pdf
Even though these are AGM batteries they can be conditioned to remove sulphation - very few AGMs can handle that.

Cheers,

Jim
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Old 03-11-16, 02:58 PM   #22
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I used a 110 amp leisure battery for both the caravan and my winch, and still use it on the motor mover for my trailer, and have had it for eight years at least. It was more expensive than a 'car type' one though (about 70 I think?) but has performed well and rarely requires charging. Now I've said that I suppose I will go to use it next weekend for Newark Show and find it flat!

Pete.
Pete, I was always told leisure batteries dont like high current bursts but car batteries do I.e. starting engines etc which is why I use a car battery for the winch.
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Old 03-11-16, 03:17 PM   #23
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Quote:
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(snip) I was always told leisure batteries dont like high current bursts
It was the opposite case concerning me - i.e. that the life of a car battery would suffer unduly if it was NOT worked hard but now Peter has poo-pood the electrolyte stratification business which largely gave rise to that fear and with encouraging comments from elsewhere, I think a car battery will be just fine for what I want.

I shall either purchase on-line from Tanya batteries or perhaps wait until euro car parts have one of their 30% sales - certainly not paying Halfords prices!

NHH

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Old 03-11-16, 03:23 PM   #24
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Lead-acid batteries of almost any type will handle starting current for vehicles, it's only when you get to seriously heavy starters for V16 engines in locomotives that you start to go to Nicads.

Peter
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Old 03-11-16, 03:45 PM   #25
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It was the opposite case concerning me - i.e. that the life of a car battery would suffer unduly if it was NOT worked hard but now Peter has poo-pood the electrolyte stratification business which largely gave rise to that fear and with encouraging comments from elsewhere, I think a car battery will be just fine for what I want.

I shall either purchase on-line from Tanya batteries or perhaps wait until euro car parts have one of their 30% sales - certainly not paying Halfords prices!

NHH
Go down to your local scrappy, you should be able to pick up a nearly new one for a tenner.

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Old 03-11-16, 03:55 PM   #26
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That's a good thought Dan. Current one was second-hand, from that bloke who used to do the sales and rallies selling used mobility scooters and parts.

NHH
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Old 03-11-16, 04:17 PM   #27
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Quote:
Originally Posted by Lister M View Post
Pete, I was always told leisure batteries dont like high current bursts but car batteries do I.e. starting engines etc which is why I use a car battery for the winch.
I usually ran the van engine while using the winch for loading an engine so it was charging at the same time Martin. The motor mover draws very little from the battery and is designed for leisure battery use anyway.

Pete.
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Old 03-11-16, 06:50 PM   #28
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Quote:
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That's a good thought Dan. Current one was second-hand, from that bloke who used to do the sales and rallies selling used mobility scooters and parts.

NHH
You could ask them if they have a length of 3-core SWA whilst you are there...



DH
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Old 03-11-16, 07:37 PM   #29
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Or a bucket to carry a couple of gallons of electricity down the garden occasionally.

NHH
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Old 03-11-16, 07:52 PM   #30
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Bucket = Capacitor, just needs occasional charging in the kitchen
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