Thread: Don't you hate it when some people know it all?

Originally Posted by Slunnie

People like that seem to bull**** their way from job to job to job and do poorly at all of them. They don't seem to realise that people see straight through them.

That's because they are self deluded, I work with a clown like that and one day he was blathering on about how he'd been everywhere and done everything. One of our contractors was having lunch next to us, and when the bloke with the mouth had left he asked me "How old is that bloke?", I said "About fifty" and he said "Are you sure he is not a hundred and fifty?". So goes to show these types can fool the feeble minded and inexperienced, but not anyone with a bit of knowledge.

Originally Posted by RANDLOVER

That's because they are self deluded, I work with a clown like that and one day he was blathering on about how he'd been everywhere and done everything. One of our contractors was having lunch next to us, and when the bloke with the mouth had left he asked me "How old is that bloke?", I said "About fifty" and he said "Are you sure he is not a hundred and fifty?". So goes to show these types can fool the feeble minded and inexperienced, but not anyone with a bit of knowledge.

We had a bloke like that where I used to work. I christened him ' The Iceman', as he had to be 300 years old to have had all his lifetime episodes plus, he was only early 30s!

Originally Posted by PhilipA

Look , The video made many good points that are pretty well unarguable.

Originally Posted by PhilipA

I will quote a few.
1 Use only a DC DC charger with a Lithium setting, and its surprising how few there are about at a reasonable cost.

While it is recommended to use a a DC/DC charger with lithium charge algorithms, but you actually do not need a DC/DC charger with lithium settings to charge lithium batteries if you are just charging from an alternator ( via a DC/DC charger ). Because no one drives long enough to get the benefits of a lithium dedicated charger so no loss or harm done.

Originally Posted by PhilipA

2 Do not put a Lithium under bonnet as the Lithium becomes more reactive and the battery life shortens dramatically. I read an experimental report last week where the experimenters stored charged Lithium batteries at different temperatures and a 50C the test battery failed in 90 days.

Originally Posted by PhilipA

If I were to put one underbonnet as I plan to I will fan cool it and it will be in the original tray.

While the fan “might” keep the battery cooler while the motor is running, but unless you run the fan for a considerable time after the motor is turned off, the heat coming off the motor after it is turned off and no longer has air flowing pasted the motor, this heat will still cook a lithium battery.

Originally Posted by PhilipA

3 The BMS in cheaper Lithiums are inadequate to run high current items such a inverters. As long as people with 200AH banks understand that they cannot reliably run a 2000watt Inverter something has been achieved.

Agree on this point but the battery they were using was not that great in the first place. A single one of my AMPS brand 100Ah Lithium batteries will power a 2000w inverter.

Originally Posted by PhilipA

4 And I sort of learned this as it was already somewhere in the back of my mind . If the Lithium is completely dead the DC DC charger will not recognize it and the DC DC charger can be reactivated by placing a 9volt battery across the Lithium terminals.

This is not correct, as the clown himself found out. Most DC/DC charger will reactivate the BMS in a lithium battery that has shut down because the battery was fully discharged.
It is 230vac battery chargers that will not reactivate the BMS in a lithium battery that has shut down because the battery was fully discharged. If the battery charger is a good quality one, then all you need to do is set the battery charger to POWER SUPPLY mode and this will reactivate the BMS.
Once the BMS is back on, switch the battery charger back to BATTERY CHARGE mode and let it do its job.

Originally Posted by PhilipA

There are probably a few other items that those who are not electrically minded would not know. The issue is that there was no misinformation in the video.

The video contained misinformation and a total lack of any useful information.
Information like what to look for when trying to get a good quality lithium battery. Or how to test a lithium battery to see if you actually got what you paid for.
Once again, that video is a total waste of time.

Most lithium batteries are not recomended for engine starting but most battery type jump starters are lithium ,reasons ?

The propagation of forum threads!

Drivesafe I respect your experience and admire your ability to promote your business.

However in my experience the majority of people do not want a "superior" Lithium battery for maybe over $1000 but one that will do the job they want for much less.

The report by the subject of this video was about the cheaper end of the Lithium market ie the volume end that most people look at and the end that causes most angst when the batteries do not perform to often unrealistic expectations.

One very prominent ebay seller has obviously been barred from ebay recently due to misrepresentation of the capacity of his batteries . I suspect he is back using another name..

In my case I want a Lithium battery to run my fridge for as long as possible at the lowest cost and am not interested in running a 2000watt inverter.

So I am looking at the lowest priced Lithium battery that meets its specs . I do not have room except for under the bonnet, and I intend to use a temperature tracker to ascertain what temperature the stock battery box gets to. I think there would be many on this forum with similar requirements .

I am more concerned about the starting battery which is next to the turbo but my blue top seems to be coping well after 2.75 years at still 700+ CCA.

i

nformation like what to look for when trying to get a good quality lithium battery. Or how to test a lithium battery to see if you actually got what you paid for.

Once again, that video is a total waste of time.

Well we would all love that. At present all we can rely on is word of mouth. There have been tests of Renology in the USA which show that they meet spec.
A friend of mine bought some cheapies from the Ebay seller and found them to be junk. He got a refund .Ebay rated the seller as 100% even though it was junk so that is no indication. However they have now taken him off.

He is now happy with his latest purchase but I haven't found out the brand.

I couldn't find AMPS brand on Google. Could you advise pricing and specs to the forum?

Regards PhilipA

In this case you’ve provided perfect evidence of the stubbornness of wanting “new tech” when the tech is completely unsuited to your needs, wants or application.

If it’s going under bonnet - it’s AGM for you.

The fan running will reduce capacity / benefits
It will heat soak
Cheaper cells don’t last
DCDC will add a cost you don’t need

A decent AGM will weight a bit, partially offset by not needing a fan/bracket/dcdc etc.

You’ll be able to replace an AGM 3-5 times before you come close to cost.

Totally agree Tombie. Get a good AGM and they last for a very long time as well!