Gel Battery

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T1 Terry
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Re: Gel Battery

Post by T1 Terry »

bobk wrote: Wed Mar 23, 2022 3:20 pm That's a plan, thank you. As an aside, the vehicle is a 2010 Isuzu and I don't believe it has a smart alternator. I have checked it with engine running after driving for some time and the voltage was 14.1V.
I guess the 14.1v was at the start battery, if you were to pull 40 amps down the cable to the house battery for charging, the voltage drop through the cable would pull the voltage down to around 11.5v or less. The 14.1v would only be seen at the house battery end if no current was flowing, it would be interesting to know how much current was flowing when you measured the 12.9v at the house battery .... my guess would be less than 10 amps and it would gradually reduce as the voltage increased.

I have seen a system that had cable the size of industrial welding cable run the length of the tow vehicle and all the way to the house batteries in the caravan, the cables were so big it required 175 amp Anderson plugs, there was around 2 amps coming into the house battery at 12.5v :roll: ...... There is a member of the caravanner forum that installs these setups and claims the full alternator current will be fed into the house battery ..... the clamp meter said otherwise .....

T1 Terry.
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Vik351
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Re: Gel Battery

Post by Vik351 »

Good way to light your weber kettle :o :roll:

https://www.youtube.com/watch?v=07BS6QY3wI8

vik... :mrgreen:
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Re: Gel Battery

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Vik351 wrote: Thu Mar 24, 2022 11:26 pm Good way to light your weber kettle :o :roll:

https://www.youtube.com/watch?v=07BS6QY3wI8

vik... :mrgreen:
Don't ya just love those who come up with these own facts and state them as such without understanding what they are doing. I'm guess the problem they had with the cell was a loss of contact between the plates and one of the terminals and jumped to the conclusion the battery was fully discharged.
When he spears the case, vapour pours out due to a short between fully charged plates, the red glow inside showed clearly the plates where still holding quite a bit of capacity and were shorting across each other. The second stab he creates a short between the aluminium case and the charged plates inside, this creates a spark and ignites the hot vapour.
If the cell really could produce all the elements required for a fire, fuel, oxygen and ignition, then the flame wouldn't be red/yellow, it would be blue and very fierce in deed, the swelling probably would have occurred and the cell actually explode because the pressure build up from the internal fire wouldn't be able to vent through the holes provided.

The take away from this, don't drive a sharp metal object repeatly through om aluminium cased cell :roll:
I think Boieng already conducted a similar test where a brainless technician wound a bolt far too long for the space available, using a power tool so no resistance was detected, and screwed the bolt right though a cell ...... this was not an LFP cell the Boeing technician shorted out but rather a lithium cobalt manganese chemistry cell, so the fire was much more dramatic and lead to thermal run away .... much like these Tesla cells https://www.youtube.com/watch?v=WdDi1haA71Q that is the sort of fire you get with other chemistry lithium cells being installed and charged by people who don't have a clue what they are doing .....

T1 Terry

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Re: Gel Battery

Post by T1 Terry »

Vik351 wrote: Thu Mar 24, 2022 11:26 pm Good way to light your weber kettle :o :roll:

https://www.youtube.com/watch?v=07BS6QY3wI8

vik... :mrgreen:
Did the sale go through with the motorhome Vik, Margaret had a near hr long phone call from a prospective buyer .... hope it worked out well for you ....

T1 Terry
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bobk
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Re: Gel Battery

Post by bobk »

Good morning, no Terry I checked the voltage at the Anderson plug at the towbar. I have 2x6mil cables going to two Anderson plugs (through a VSR) at the towbar. I admit to using the chassis as the earth. Checked under no-load condition so therefore no voltage drop. Need to check again with load but you will be correct. I have been running an experiment with the AGM in the garden shed, running the Engel loaded with a box of water and 6 stubbies as load, without lifting the lid for several days. The folding panel is on the shed roof facing roughly west. I recharged the battery prior to hook-up and with the analyser attached the voltage has not fallen below 12.1 indicated, so it appears with the cyclic action of the fridge, the battery is able to recover between cycles. This is in perfect weather of course. I will persist with this until the weather deteriorates just for my amusement but with the capacity issues afforementioned (love my words :lol:) I'm not sure of a good result. bobk
Bob and Lyn aka Mr & Mrs K.
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Vik351
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Re: Gel Battery

Post by Vik351 »

T1 Terry wrote: Fri Mar 25, 2022 12:04 pm
Vik351 wrote: Thu Mar 24, 2022 11:26 pm Good way to light your weber kettle :o :roll:

https://www.youtube.com/watch?v=07BS6QY3wI8

vik... :mrgreen:
Did the sale go through with the motorhome Vik, Margaret had a near hr long phone call from a prospective buyer .... hope it worked out well for you ....

T1 Terry
Wouldnt be Adelaide would it ...!!! :o

No word yet... :cry:

Nothing but tyre kickers out there , who put them on to you ...??? Your sticker is on the Lithos ...

Hope ya said all the right stuff ... thanks ...

Down to 160 K now , so much for a sellers market FFS ... !!!

vik...
Merk 4x4 VF30 519 CDI 2020 LWB V6TD 3 ltr 6 wheeler ,Tenorite Grey ... yep, it's not white ...!!! 8-)
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Vik351
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Re: Gel Battery

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Well there ya go , looks like Margaret's little long chat did the trick ... Luxobarge is gone, only took a couple a years ... :D

Now just wait for Putin to drop the big one ;) ... But SFA... :roll:

Funny how when the Great Don was in charge, he had Vladdies balls in his pocket ;)
CJ49-111-15.jpg


vik...
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Vik351
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Re: Gel Battery

Post by Vik351 »

So Terrance if the new purchasee comes past , ya can get a job out of hum to replace the fan in the elecie box that must of stopped working cos it sat in the car yard for sooo long ;) :) :D

vik... :mrgreen:
Merk 4x4 VF30 519 CDI 2020 LWB V6TD 3 ltr 6 wheeler ,Tenorite Grey ... yep, it's not white ...!!! 8-)
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Re: Gel Battery

Post by T1 Terry »

Maybe late May-June, but not before. So, are you looking at a replacement vehicle now, or given up on the whole hitting the road idea?

T1 Terry
A person may fail many times, they only become a failure when they blame someone else John Burrows
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Vik351
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Re: Gel Battery

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Looking at a 4x4 Merkie , but it's in friggin Toowoomba ... :o :(

Have to fly up and get it home some how, know any good short cuts ...???
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