Hello,

I've bought a leisure battery but since noticed that the seller is doing
at the same price 2x batteries of a higher capacity than this one that
i've bough but they are not describes as 'leisure' but are deep cycle.

Is there a difference between deep cycle batteries if they are described
as 'leisure' or are they one and the same?

On 07/10/2022 15:12, R D S wrote:
> Hello,
>
> I've bought a leisure battery but since noticed that the seller is doing
> at the same price 2x batteries of a higher capacity than this one that
> i've bough but they are not describes as 'leisure' but are deep cycle.
>
> Is there a difference between deep cycle batteries if they are described
> as 'leisure' or are they one and the same?
>

There is a difference in construction of lead acid batteries intended
for very heavy short duration discharge, such as a car battery, and
those intended for standby operation where a light or moderate discharge
needs to be sustained for a number of hours, such as in a UPS, although
wet/flooded Ni-Cads are still preferred for such applications. The
Ni-Cads in particular can withstand deep discharges and not be damaged
by being left if a discharged state for a period of time.

I assume "leisure" batteries are more akin to those intended for for
light/moderate sustained discharge and therefore probably deep cycle.

That does not sound right to me, surely those intended to sic high currents
must have a more robust construction. I mean deep cycle is really big
discharge and fast charging,is it not, the reverse of leisure?

Brian

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"David" <david@nospam.org> wrote in message
news:thr27u$pla$1@gioia.aioe.org...
> On 07/10/2022 15:12, R D S wrote:
>> Hello,
>>
>> I've bought a leisure battery but since noticed that the seller is doing
>> at the same price 2x batteries of a higher capacity than this one that
>> i've bough but they are not describes as 'leisure' but are deep cycle.
>>
>> Is there a difference between deep cycle batteries if they are described
>> as 'leisure' or are they one and the same?
>>
>
> There is a difference in construction of lead acid batteries intended for
> very heavy short duration discharge, such as a car battery, and those
> intended for standby operation where a light or moderate discharge needs
> to be sustained for a number of hours, such as in a UPS, although
> wet/flooded Ni-Cads are still preferred for such applications. The Ni-Cads
> in particular can withstand deep discharges and not be damaged by being
> left if a discharged state for a period of time.
>
> I assume "leisure" batteries are more akin to those intended for for
> light/moderate sustained discharge and therefore probably deep cycle.
>
>

On Sat, 8 Oct 2022 09:58:04 +0100
"Brian Gaff" <brian1gaff@gmail.com> wrote:

> That does not sound right to me, surely those intended to sic high
> currents must have a more robust construction. I mean deep cycle is
> really big discharge and fast charging,is it not, the reverse of
> leisure?
>
"Deep cycle" means you can run it flat then recharge without too much
damage. A car battery will suffer if you don't recharge it when it
drops below 12 volts, especially if you leave it there for a while,
even without further use.

Brian Gaff <brian1gaff@gmail.com> wrote:
> That does not sound right to me, surely those intended to sic high currents
> must have a more robust construction. I mean deep cycle is really big
> discharge and fast charging,is it not, the reverse of leisure?
>
No, "deep cycle" and "leisure" are (sort of) synonyms aimed at
applications where the battery doesn't have to supply heavy currents
but does need to be able to be discharged quite deeply.

Car batteries on the other hand need to be able to supply heavy
currents for a short time (hence the CCA rating to indicate what sort
of current they can hadle) but cannot manage deep discharge without
rapid deterioration.

If I remember the right way round car batteries tend to have plates
(electrodes) which are perforated and (quite) flimsy to maximise the
surface area to handle high currents. 'Leisure' and deep cycle
batteries have more robust solid plates which don't sulphate and/or
disintegrate so easily but have less conducting area and thus can't
supply such high currents.

--
Chris Green
·

Brian Gaff <brian1gaff@gmail.com> wrote

> That does not sound right to me, surely those intended to sic high
> currents
> must have a more robust construction. I mean deep cycle is really big
> discharge and fast charging,is it not,

No, just doesn't mind having most of its charge used.

> the reverse of leisure?

Nope.

Counter intuitive then, since the starter of a car is much more likely to
completely flatten a battery, than a couple of tvs and a charger.
Brian

--

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The Sofa of Brian Gaff...
briang1@blueyonder.co.uk
Blind user, so no pictures please
Note this Signature is meaningless.!
"Rob Morley" <nospam@ntlworld.com> wrote in message
news:20221008111531.1b05d55c@Mars...
> On Sat, 8 Oct 2022 09:58:04 +0100
> "Brian Gaff" <brian1gaff@gmail.com> wrote:
>
>> That does not sound right to me, surely those intended to sic high
>> currents must have a more robust construction. I mean deep cycle is
>> really big discharge and fast charging,is it not, the reverse of
>> leisure?
>>
> "Deep cycle" means you can run it flat then recharge without too much
> damage. A car battery will suffer if you don't recharge it when it
> drops below 12 volts, especially if you leave it there for a while,
> even without further use.
>

On 08/10/2022 15:35, Brian Gaff wrote:
> Counter intuitive then, since the starter of a car is much more likely to
> completely flatten a battery, than a couple of tvs and a charger.

Perhaps the idea though, is that you charge the leisure battery, use it
up, charge it again....
Whereas a vehicle is constantly topping up the battery and you should
only flatten it if something is amiss.

In my case though i'm putting a solar panel on it so maybe it's
pointless getting a deep cycle one?

Brian Gaff <brian1gaff@gmail.com> wrote

> Counter intuitive then, since the starter of a car is much more likely to
> completely flatten a battery,

But wouldn't normally be left flat if it is deeply discharged.

> than a couple of tvs and a charger.

Very few use lead acid batterys like that.

On Sun, 09 Oct 2022 01:39:44 +1100, R D S <rsandr@yahoo.com> wrote:

> On 08/10/2022 15:35, Brian Gaff wrote:
>> Counter intuitive then, since the starter of a car is much more likely
>> to
>> completely flatten a battery, than a couple of tvs and a charger.
>
> Perhaps the idea though, is that you charge the leisure battery, use it
> up, charge it again....
> Whereas a vehicle is constantly topping up the battery and you should
> only flatten it if something is amiss.
>
> In my case though i'm putting a solar panel on it so maybe it's
> pointless getting a deep cycle one?

Really depends on how often it is fully discharged.

Plenty of situations at the latitude the UK is where the battery
is fully discharged most nights in which case you will get a
much better life with a deep discharge battery.

On Sat, 8 Oct 2022 15:35:14 +0100
"Brian Gaff" <brian1gaff@gmail.com> wrote:

> Counter intuitive then, since the starter of a car is much more
> likely to completely flatten a battery, than a couple of tvs and a
> charger.

A car battery shouldn't be anywhere near flattened by starting the car,
that will only happen if the battery is already knackered or there's a
problem with the engine that it won't start (which will also at least
partly knacker the battery because it doesn't like going below 12
Volts).

On 07/10/2022 15:12, R D S wrote:
> Hello,
>
> I've bought a leisure battery but since noticed that the seller is doing
> at the same price 2x batteries of a higher capacity than this one that
> i've bough but they are not describes as 'leisure' but are deep cycle.
>
> Is there a difference between deep cycle batteries if they are described
> as 'leisure' or are they one and the same?

Many leisure batteries are simply large starter batteries. They often
have a CCA specification.

Some constructions are more rugged but are still limited to a discharge
to a minium of 50% charge to aid life-time. Others have materials
alloyed into the electrodes material that helps to limit sulphation,
look up lead carbon batteries as an example.

On 07/10/2022 15:12, R D S wrote:
> Hello,
>
> I've bought a leisure battery but since noticed that the seller is doing
> at the same price 2x batteries of a higher capacity than this one that
> i've bought

Listing price has changed to over double, plainly an error.

On 07/10/2022 15:12, R D S wrote:
> Hello,
>
> I've bought a leisure battery but since noticed that the seller is doing
> at the same price 2x batteries of a higher capacity than this one that
> i've bough but they are not describes as 'leisure' but are deep cycle.
>
> Is there a difference between deep cycle batteries if they are described
> as 'leisure' or are they one and the same?
>
Please note that neither of these are suitable for a normal car battery
.... i.e Starter battery
On those it is high Cold Cranking Amps is the measure to judge by.

On 29/10/2022 18:36, rick wrote:
> On 07/10/2022 15:12, R D S wrote:
>> Hello,
>>
>> I've bought a leisure battery but since noticed that the seller is
>> doing at the same price 2x batteries of a higher capacity than this
>> one that i've bough but they are not describes as 'leisure' but are
>> deep cycle.
>>
>> Is there a difference between deep cycle batteries if they are
>> described as 'leisure' or are they one and the same?
>>
> Please note that neither of these are suitable for a normal car battery
> ... i.e Starter battery
> On those it is high Cold Cranking Amps is the measure to judge by.

Many, many batteries called 'Leisure' batteries are often semi-traction
batteries. They will typically have a CCA specification.

By way of example:
https://www.tayna.co.uk/leisure-batteries/enduroline/exl110/
This 110Ahr 'Leisure' battery has a CCA of 810A.