Questions about 2008 F450
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Junior Member
Joined: Jun 2024
Posts: 3
Questions about 2008 F450
Two questions, please ---
1. I have a F450 with 6.4L and 4.88 gearing (according to paperwork). [not a 4X4 if that matters]. I know this will cause high rpm's, but gives me the pulling power.
Question -- since I am not a mechanical techy --- at about what RPM's should it be running at 60 mph and 70 mph?
2. I am looking into installing a 5k - 7k power inverter on my 2008 F450. Is there a setting or device I can use to set the engine RPM's to about 1000 to maintain sufficient charge to batteries and power the inverter? I'm not a mechanic or techy, but should be able to wire the inverter, but have no idea about the RPM speed being set..... If this is something that should go to a shop, I can do that instead.
Thanks for guidance.
1. I have a F450 with 6.4L and 4.88 gearing (according to paperwork). [not a 4X4 if that matters]. I know this will cause high rpm's, but gives me the pulling power.
Question -- since I am not a mechanical techy --- at about what RPM's should it be running at 60 mph and 70 mph?
2. I am looking into installing a 5k - 7k power inverter on my 2008 F450. Is there a setting or device I can use to set the engine RPM's to about 1000 to maintain sufficient charge to batteries and power the inverter? I'm not a mechanic or techy, but should be able to wire the inverter, but have no idea about the RPM speed being set..... If this is something that should go to a shop, I can do that instead.
Thanks for guidance.
Last edited by Eagle Camper; Jun 21, 2024 at 11:08 AM. Reason: wordage of question
Senior Member
Joined: Feb 2024
Posts: 1,191
From: California
Who told you to set 1k RPM to maintain the battery?
Your truck has factory dual alternator and dual battery?
Which exact battery are you currently using?
You might want to take different approach it really depends on what you are going to do with the inverter so please provide more details. Even if you have dual battery you do not have to stick with the factory dual battery setup you can do a custom setup.
Your truck has factory dual alternator and dual battery?
Which exact battery are you currently using?
You might want to take different approach it really depends on what you are going to do with the inverter so please provide more details. Even if you have dual battery you do not have to stick with the factory dual battery setup you can do a custom setup.
Thread Starter
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Junior Member
Joined: Jun 2024
Posts: 3
Who told you to set 1k RPM to maintain the battery?
Your truck has factory dual alternator and dual battery?
Which exact battery are you currently using?
You might want to take different approach it really depends on what you are going to do with the inverter so please provide more details. Even if you have dual battery you do not have to stick with the factory dual battery setup you can do a custom setup.
Your truck has factory dual alternator and dual battery?
Which exact battery are you currently using?
You might want to take different approach it really depends on what you are going to do with the inverter so please provide more details. Even if you have dual battery you do not have to stick with the factory dual battery setup you can do a custom setup.
Again thanks of input.
Senior Member
Joined: Feb 2024
Posts: 1,191
From: California
Revving and keeping 4000 RPM does NOT mean your battery will get charged at all, let alone charging it quicker. Your PCM is the decision maker, not your gas pedal. Not sure where you got that info and misled you.
You said you haven't setup either battery so does that indicate that your truck do have dual battery? How about dual alternator? What's the current battery brand, type, model and age? All these are unanswered still, they are required to design a custom setup for you. Additionally where are you located, city and state. This info is required if solar setup is needed.
Since a few questions remain unanswered I can't give you the recommendation of what to get and how to wire them up yet.
If you do have factory dual battery, what I can tell you at this moment, the Ford's dual battery setup is the wrong type for your purpose, you need a custom setup and I'm here to give you idea and recommendation.
You said you haven't setup either battery so does that indicate that your truck do have dual battery? How about dual alternator? What's the current battery brand, type, model and age? All these are unanswered still, they are required to design a custom setup for you. Additionally where are you located, city and state. This info is required if solar setup is needed.
Since a few questions remain unanswered I can't give you the recommendation of what to get and how to wire them up yet.
If you do have factory dual battery, what I can tell you at this moment, the Ford's dual battery setup is the wrong type for your purpose, you need a custom setup and I'm here to give you idea and recommendation.
Senior Member
Joined: Jun 2010
Posts: 16,528
You can raise the RPM all you want , but if the alternator output doesn't match what you require, it won't work well long.
A 5000 watt inverter requires 400+ amps to meet what the inverter can produce.
If your alternators can't put out that many amps, the battery(s) will become discharged.The wiring will need to be increased to accommodate that kind of output.
You can't get more out of the system than you put in and there are some losses to consider there also.
What we need to know is the output of each of the alternators and the power consumption of what you plan to operate.
This may be more than you are equipped to handle and definitely suggest you have somebody very familiar with electricity handle the job.
A 5000 watt inverter requires 400+ amps to meet what the inverter can produce.
If your alternators can't put out that many amps, the battery(s) will become discharged.The wiring will need to be increased to accommodate that kind of output.
You can't get more out of the system than you put in and there are some losses to consider there also.
What we need to know is the output of each of the alternators and the power consumption of what you plan to operate.
This may be more than you are equipped to handle and definitely suggest you have somebody very familiar with electricity handle the job.
Thread Starter
|
Junior Member
Joined: Jun 2024
Posts: 3
You can raise the RPM all you want , but if the alternator output doesn't match what you require, it won't work well long.
A 5000 watt inverter requires 400+ amps to meet what the inverter can produce.
If your alternators can't put out that many amps, the battery(s) will become discharged.The wiring will need to be increased to accommodate that kind of output.
You can't get more out of the system than you put in and there are some losses to consider there also.
What we need to know is the output of each of the alternators and the power consumption of what you plan to operate.
This may be more than you are equipped to handle and definitely suggest you have somebody very familiar with electricity handle the job.
A 5000 watt inverter requires 400+ amps to meet what the inverter can produce.
If your alternators can't put out that many amps, the battery(s) will become discharged.The wiring will need to be increased to accommodate that kind of output.
You can't get more out of the system than you put in and there are some losses to consider there also.
What we need to know is the output of each of the alternators and the power consumption of what you plan to operate.
This may be more than you are equipped to handle and definitely suggest you have somebody very familiar with electricity handle the job.
I think I will just go to a local truck shop and see what they think and then probably just pass on the idea....Thanks again.
Senior Member
Joined: Feb 2024
Posts: 1,191
From: California
A dual battery factory (Ford) setup is never designed to run a 500W inverter, not to mention 5000W. You said your dual batteries are fairly new, just a year old and both are AGM. Which exact battery you have to go to your truck and look. Are they single or dual purpose, more than likely just single purpose (non-deep cycle). You need a true Deep Cycle battery to run the inverter, and run it efficiently and effectively, period. You also need to isolate it. A Ford's setup both batteries are not isolated, they are linked in parallel in purpose to double (Ford's believe) the starting power and output. Both batteries are doing the exact same thing and (Ford's believe) sharing half of the load, making battery balancer out there redundant. Whenever you need to replace you almost always have to replace both at the same time. Wait till your both batteries go bad, replace them with a single and more reliable battery (like odyssey ODX-AGM65, best dual purpose in group 65 followed by XS Power D6500) and forget Ford's dual battery setup altogether.
Your ideal custom setup would be as follow:
1 dual purpose AGM battery: Odyssey ODX-AGM65
1 deep cycle AGM battery:
And you isolate them with:
The inverter:
Solar panel:
Solar controller: Renogy 40 Amp MPPT Solar Charge Controller
When it comes to true deep cycle battery, you buy only Renogy brand. Use only Blue Sea marine grade battery isolator. You may also use the Blue Sea circuit breaker (don't use fuse) for the renogy battery if needed. Optionally get bluetooth battery monitor so you can get the realtime status thru your mobile phone.
Since you are in FL/NC southern state you should install solar panel so you don't put a load onto your alternator and cause it to have premature failure, you also can charge your deep cycle battery when your truck is not running to keep it in top notch condition, and most importantly the panels are so affordable now that every single car on earth should install it even without running an inverter. So basically with this custom setup, when the truck is running your alternator will charge both the odyssey and renogy batteries. When it's not running, blue sea will isolate the odyssey and renogy, and your solar will kick in and charge just your renogy battery. This way you do not have to keep your engine running while using the Kinverch inverter as your solar is the backup of your alternator as well as the other way around. If the solar can handle 80% or majority of the charging, you don't even need blue sea, it's there so that alternator can take over the charging when your engine is running in case you are on a long road trip.
Since your dual batteries are fairly new, so run a triple battery setup until the two are going bad (perhaps 5 years from now) then you switch to just a single odyssey battery to replace Ford's dual battery. As far as wiring a triple battery, never forget, the way Ford is setup currently your 2 batteries are doing the exact same thing simultaneously and wired in parallel, so you can treat them as a single battery and you wire the renogy in parallel, nothing fancy about wiring a 3rd battery, the difference is you add the blue sea in between.
Your ideal custom setup would be as follow:
1 dual purpose AGM battery: Odyssey ODX-AGM65
1 deep cycle AGM battery:
And you isolate them with:
The inverter:
Solar panel:
Solar controller: Renogy 40 Amp MPPT Solar Charge Controller
When it comes to true deep cycle battery, you buy only Renogy brand. Use only Blue Sea marine grade battery isolator. You may also use the Blue Sea circuit breaker (don't use fuse) for the renogy battery if needed. Optionally get bluetooth battery monitor so you can get the realtime status thru your mobile phone.
Since you are in FL/NC southern state you should install solar panel so you don't put a load onto your alternator and cause it to have premature failure, you also can charge your deep cycle battery when your truck is not running to keep it in top notch condition, and most importantly the panels are so affordable now that every single car on earth should install it even without running an inverter. So basically with this custom setup, when the truck is running your alternator will charge both the odyssey and renogy batteries. When it's not running, blue sea will isolate the odyssey and renogy, and your solar will kick in and charge just your renogy battery. This way you do not have to keep your engine running while using the Kinverch inverter as your solar is the backup of your alternator as well as the other way around. If the solar can handle 80% or majority of the charging, you don't even need blue sea, it's there so that alternator can take over the charging when your engine is running in case you are on a long road trip.
Since your dual batteries are fairly new, so run a triple battery setup until the two are going bad (perhaps 5 years from now) then you switch to just a single odyssey battery to replace Ford's dual battery. As far as wiring a triple battery, never forget, the way Ford is setup currently your 2 batteries are doing the exact same thing simultaneously and wired in parallel, so you can treat them as a single battery and you wire the renogy in parallel, nothing fancy about wiring a 3rd battery, the difference is you add the blue sea in between.
Senior Member
Joined: Jun 2010
Posts: 16,528
Before investing in a generator, suppose we gather up some info on just what power requirements we could expect.
To do this , every appliance usually has a rating someplace on it telling how many watts it consumes.What we do is add up the total watts of what you plan to have on at the same time.
For example; a refrigerator may require 200 watts, a lamp 75 watts, or a TV 200 watts. The total power required to just operate them would be 475 watts.
If there is an air conditioner in the mix the power required (watts) is usually on a plate or label on the unit.
A generator that can put out, say 1000 watts, would be more than enough to handle that load of 475 watts
.If you exceed the output, (more than 1000 watts ) ,the generator may shut down for self preservation.
Things like toasters , motors, (hair dryers)bump that number up pretty quickly.
A good shop should be able to tell you what you need if you can provide the info.
Whatever you do , make sure you get a generator with "Electric start"
To do this , every appliance usually has a rating someplace on it telling how many watts it consumes.What we do is add up the total watts of what you plan to have on at the same time.
For example; a refrigerator may require 200 watts, a lamp 75 watts, or a TV 200 watts. The total power required to just operate them would be 475 watts.
If there is an air conditioner in the mix the power required (watts) is usually on a plate or label on the unit.
A generator that can put out, say 1000 watts, would be more than enough to handle that load of 475 watts
.If you exceed the output, (more than 1000 watts ) ,the generator may shut down for self preservation.
Things like toasters , motors, (hair dryers)bump that number up pretty quickly.
A good shop should be able to tell you what you need if you can provide the info.
Whatever you do , make sure you get a generator with "Electric start"
Last edited by hanky; Jun 23, 2024 at 04:55 PM.
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