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Post Info TOPIC: "Disabling Smart Alternator - Is it worth it?
Mamil


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RE: "Disabling Smart Alternator - Is it worth it?
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Whenarewethere wrote:

Look through your Land Rover Owners Manual & the list of fuses. Frightening what's has to be powered on these cars. 96 fuses & plenty of unused positions.

Just to name a few, radiator fans 80amps, oxygen sensor 15amps, engine management 20 10 15 10 15 15amps, central differential 15amp, ABS 30 & 40amps, internal fan 40amps, fuel pump 20amps, heated washer jets, heated mirrors, heated steering wheel, rain sensor to name a few.

 

 Yep, there sure are a lot of hungry accessories on modern cars, but given it's a 210A alternator I think there's enough to cope with an additional max draw of 32A from my DC/DC charger.



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Aus-Kiwi


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Yes but the smarts in ECU is possibly changing to consistent categories due to load ! Hes forked out due to sales talk . Just leave it alone ! Youll possibly find the vehicle is smarter than franchise or the owner ! DONT always listen to sales people !! Theyll just make you lighter !!! In your pocket !!



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Whenarewethere


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RE: "Disabling Smart Alternator - Is it worth it?
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Mamil wrote:
Whenarewethere wrote:

Look through your Land Rover Owners Manual & the list of fuses. Frightening what's has to be powered on these cars. 96 fuses & plenty of unused positions.

Just to name a few, radiator fans 80amps, oxygen sensor 15amps, engine management 20 10 15 10 15 15amps, central differential 15amp, ABS 30 & 40amps, internal fan 40amps, fuel pump 20amps, heated washer jets, heated mirrors, heated steering wheel, rain sensor to name a few.

 

 Yep, there sure are a lot of hungry accessories on modern cars, but given it's a 210A alternator I think there's enough to cope with an additional max draw of 32A from my DC/DC charger.

 & it won't be running at 32amps. My 18amps of DC- DC typically charge at 12 down to 3amps depending on battery voltage.

The car's hi-fi has at least a 40amp fuse.



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Mamil


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Posts: 430
Date:
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Whenarewethere wrote:
Mamil wrote:
Whenarewethere wrote:

Look through your Land Rover Owners Manual & the list of fuses. Frightening what's has to be powered on these cars. 96 fuses & plenty of unused positions.

Just to name a few, radiator fans 80amps, oxygen sensor 15amps, engine management 20 10 15 10 15 15amps, central differential 15amp, ABS 30 & 40amps, internal fan 40amps, fuel pump 20amps, heated washer jets, heated mirrors, heated steering wheel, rain sensor to name a few.

 

 Yep, there sure are a lot of hungry accessories on modern cars, but given it's a 210A alternator I think there's enough to cope with an additional max draw of 32A from my DC/DC charger.

 & it won't be running at 32amps. My 18amps of DC- DC typically charge at 12 down to 3amps depending on battery voltage.

The car's hi-fi has at least a 40amp fuse.

 Lithium battery, so it does pull at max output of the DC/DC charger of 32A as they can accept large charge currents, it's one of their advantages as it means they charge faster than LA.



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Whenarewethere


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Is the DC-DC a smart charger. You do not want to over charge the lithium batteries.

 

Some have run a DC-DC 12 to 24 volt charger into a MPPT controller as the quality controllers (Victron for example) have a great lithium profile. The MPPT has to be a bit smaller output than the DC-DC charger or the lithium batteries will suck the life out if it.



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Procrastination, mankind's greatest labour saving device!

50L custom fuel rack 6x20W 100/20mppt 4x26Ah gel 28L super insulated fridge TPMS 3 ARB compressors heatsink fan cooled 4L tank aftercooler Air/water OCD cleaning 4 stage car acoustic insulation.
Mamil


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Whenarewethere wrote:

Is the DC-DC a smart charger. You do not want to over charge the lithium batteries.

 

Some have run a DC-DC 12 to 24 volt charger into a MPPT controller as the quality controllers (Victron for example) have a great lithium profile. The MPPT has to be a bit smaller output than the DC-DC charger or the lithium batteries will suck the life out if it.

 Don't worry, it's a Redarc Manager 30 with temperature compensated charging and a specific Lithium profile, and the battery has recommended charge rate of 30A and max of 70A so they are well matched smile 

 



-- Edited by Mamil on Wednesday 14th of July 2021 04:57:38 PM

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oiddad


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Thanks all. I got my answer from my post nearly a page and a half ago. Not sure what the recent posts are referring to. Cheers

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Radar


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oiddad wrote:

Thanks all. I got my answer from my post nearly a page and a half ago. Not sure what the recent posts are referring to. Cheers

 we all like to waffle on a bit but you may learn more for next time.



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Whenarewethere


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Radar wrote:
oiddad wrote:

Thanks all. I got my answer from my post nearly a page and a half ago. Not sure what the recent posts are referring to. Cheers

 we all like to waffle on a bit but you may learn more for next time.

 Agree, I have learnt more from side issues, often something I was completely unaware of.

In other words, unknown unknowns!



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Procrastination, mankind's greatest labour saving device!

50L custom fuel rack 6x20W 100/20mppt 4x26Ah gel 28L super insulated fridge TPMS 3 ARB compressors heatsink fan cooled 4L tank aftercooler Air/water OCD cleaning 4 stage car acoustic insulation.
Mamil


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Posts: 430
Date:
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oiddad wrote:

Thanks all. I got my answer from my post nearly a page and a half ago. Not sure what the recent posts are referring to. Cheers

 Sorry Oiddad, my fault the thread went off on a tangent. I mentioned a problem I had with my smart alternator going into fixed voltage mode and others chimed in with suggestions what might have caused it smile 



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