12 volt control box.

[Kappy]

Thanks Terry,
I wouldn't even consider a drop in Lithium.
As explained in the phone call I may get by with a reasonable AGM for my needs.
Once I fit my DC2DC will see how it fits, as mostly only need to run fridge overnight if I camp up.
As I head north to Qld I'll gauge it.
Is it realistic to post a lithium setup from Mannum to Qld or do I need to get to Mannum if I choose that path?
Mostly I'll be plugged into 240V its probably only heading home I'll need O/night.
Cheers
Kappy

[T1 Terry]

One of those possible future project things, an entry into the drop in market with a package that fits in one of those plastic battery boxes, but the lid can be removed to check anything needing checking or fixing rather than everything sealed in a plastic battery case and if anything fails, the whole battery fails .....

T1 Terry

[supersparky]

It's a bit sad really, that so many people have been sucked into the whole 'drop in lithium' field of play. And most of them will never know, but I'm not sure that is a good thing.

[T1 Terry]

It's a bit sad really, that so many people have been sucked into the whole 'drop in lithium' field of play. And most of them will never know, but I'm not sure that is a good thing.

This one highlights the willingness to remain ignorant
https://www.caravanersforum.com/viewtop ... 11&t=91678
They buy a drop in battery at what they consider to be a bargain price, yet are not willing to capacity test them the way the quality factory lithium cells are tested, just in case they get their nose rubbed in the fact they were tricked into reading what wasn't actually written in the specs.
So they buy a bargain priced 100Ah lithium drop in, then test it at the same rate as an AGM battery rather than the proper method for testing a lithium battery. They might get 100Ah using a 5 amp load over 20 hrs, realistically, how many modern day RV's only draw a maximum of 5 amps? If they did the proper 2 hr test at a 50 amp draw, they would understand that they didn't buy a 100Ah lithium battery, but rather a 60Ah lithium battery at best.
They would then have to look at what they paid for a 60Ah lithium battery that can't be serviced or have any faults rectified, and they would realise they had paid way too much for what they actually got ..... better to bury the head in the sand and pretend it didn't happen ......

I suppose if they want to replace a 100Ah AGM battery with a 100Ah drop in and use it the same way they did the AGM battery, then they might have bought something similar to what they had before that will at least charge faster unlikely it will last longer though.
The problem comes when someone with two or three or even 4 x 100Ah AGM batteries think they can replace those with the same number of drop in lithium batteries ....... it just doesn't work that way and they very quickly discover that each drop in battery has its own warranty specs and they don't multiply because you have more than one drop in battery. When they start to fail within the first 12 mths, the seller says to send the faulty battery back, they pop the top off and it is clearly obvious the current limit for that battery has been exceeded more than once, so no warranty for that battery or any of the others in the same group ..... The specs say a max continuous load of say 50 amps for the better ones, they do not say that 50 amps is multiplied by the number in the parallel group, what they do say is the capacity will add together ....... no where does it say you can have more than the 50 amps for more than a few seconds, nor does it say the capacity was measured using this maximum load ..... It's what they don't say but lead the customer to read into the specs that isn't actually there that catches them out in a way no consumer laws can protect against ......

T1 Terry