Diamec Batteries

RustyD · Guru

Diamec Batteries

Dickodownunder · Guru

The 100 amp battery weighs 28.4 kg from their specs.

I am not totally familiar with the figures so I ask...Is this good?

RustyD · Guru

All the Diamec batteries are heavy. Not sure if that means good or bad. It's the charging current that I am researching as well. My cig outlet in my ute is the standard 10A. These batteries vary from 10A to 20A to charge. Does the car push out 10A or does the battery drag what is needs (e.g. 20A) or just the 10A that the ute offers? If the battery drags 20A then I am restricted to a 10A battery.

The 150 amp battery needs 16 amps to charge and weighs 40.2 kg. If I use one of them, it stays where it is put.

If you click compare on the link above 4 of the batteries appear in a table.

-- Edited by RustyD on Thursday 18th of January 2018 01:16:14 PM

Dickodownunder · Guru

I was under the impression that heavy is good which I believed reflected more lead in the build.
Some more recent publications that I have read boast that the construction of AGM has improved and the units are lighter in weight for the same output.
A bit confusing..to me anyway.

The price seems reasonable on those linked above RustyD and Jaycar is a reputable company so I would assume that their figures are for all purposes, accurate.

-- Edited by Dickodownunder on Thursday 18th of January 2018 01:29:39 PM

-- Edited by Dickodownunder on Thursday 18th of January 2018 01:30:13 PM

Izabarack · Guru

RustyD wrote:
All the Diamec batteries are heavy.
My cig outlet in my ute is the standard 10A.

Weight, in a deep cycle battery, is a good thing. General statement that and only using weight as an indication that the product might be capable of doing what the advertising promises.

Please, some clarification on how you intend to charge these batteries. I would not like a ciggie lighter socket to be involved in any way.

Iza

RustyD · Guru

Izabarack wrote:
RustyD wrote:
All the Diamec batteries are heavy.
My cig outlet in my ute is the standard 10A.
Weight, in a deep cycle battery, is a good thing. General statement that and only using weight as an indication that the product might be capable of doing what the advertising promises.
Please, some clarification on how you intend to charge these batteries. I would not like a ciggie lighter socket to be involved in any way.

Iza

Been doing my sums this afternoon (too hot to do much else). Looks like I need a 50Amp lead from my under-bonnet battery terminated in to my boot with an Anderson plug and protected by a 50Amp VSR and a 50Amp fuse. AKA a dual battery system.

PeterD · Guru

Dickodownunder wrote:
The 100 amp battery weighs 28.4 kg from their specs.

I am not totally familiar with the figures so I ask...Is this good?

I think it is a little light on. The Fullriver DC100-12A weighs approx 34.2kg. There are many other threads where knowledgeable members acknowledge that weight has a lot of weight when comparing batteries. If they are not heavy enough they consider the figures have been fudged.

Warren-Pat_01 · Guru

Rusty from my understanding of batteries, an AGM 100-120AH battery weighs anything from 27 to 32kg. Depending on where they are located, weight can be ok or not ok - if you have to lift it out of a confined space! Heavier batteries also can add to "our weight burdens" too.
They are normally charged & discharged at what is called the 10 hr rate.

Ciggy lighter plugs/sockets are too light - you do need a heavier feed with heavy plug/socket (Anderson, etc) with the cable ok to handle up to 50A but not necessarily carrying that all the time. With a good DC-DC charger you shouldn't have too many problems. There are lots to choose from depending on how much power you want to use & pay.

Have a look at this website - it is good & I keep a printed copy in my van - www.energymatters.com.au/components/batteries/ - check most of the links on the batteries.

Cheers,
Warren

Jaahn · Guru

RustyD wrote:
All the Diamec batteries are heavy. Not sure if that means good or bad. It's the charging current that I am researching as well. My cig outlet in my ute is the standard 10A. These batteries vary from 10A to 20A to charge. Does the car push out 10A or does the battery drag what is needs (e.g. 20A) or just the 10A that the ute offers? If the battery drags 20A then I am restricted to a 10A battery.

The 150 amp battery needs 16 amps to charge and weighs 40.2 kg. If I use one of them, it stays where it is put.
If you click compare on the link above 4 of the batteries appear in a table.
-- Edited by RustyD on Thursday 18th of January 2018 01:16:14 PM

Hi Rusty smile

The ute system just offers voltage and the second battery drags what current it can get at that voltage. So it varies depending on how flat it is and how big it is. BUT the biggest restriction is the connection and the wire size. If these are substandard then it will; A restrict the flow of current to a trickle and/or B blow the fuse or overheat the wiring if no fuse. The cig socket is too small to supply the current for a second battery. It is not a simple relationship that is easily quantified.

You should look at a proper system linking the main ute battery to the secondary battery with a VSR and a very heavy pair of cables. What model ute do you have, older models will be OK but later vehicles have a "smart" charging system which will need more hardware to work properly. Do more reading and asking before you start !

Jaahn

RustyD · Guru

Bit the bullet this morning and booked my ute in to have a www.ironman4x4.com/products/dual-battery-systems/40a-dc-to-dc-battery-charger terminating in an Anderson plug in the tub (next to the 12v cig socket). It was recommended that I use the DC-DC charger rather than VSR in my ute (2015 Ranger).