Using LifePO4 battery in my 2024 Honda Accord Hybrid for great mileage. Your thoughts?

P

PetitFrereArmada

Joined
Aug 16, 2018
Messages
300
Location
TX, USA
Lithium Iron phosphate (LiFePO4) battery in my 2024 Honda Acxord Hybrid for "better mileage".

I consider myself a hypermiler. I drive a 2024 Honda Accord EX-L hybrid. In city driving, I consistently get over 55 mpg. On a few occasions, I have had a few full tanks of gas with over 60 mpg.

We have a member on the Accord forum who bought and installed a LifePO4 battery in his car and is getting over 65 mpg consistently. I decided to buy the same kind of battery and experiment with it.

Here is a link to my thread to see pictures. I will upload those pictures here soon.

Sn0uR8v.jpeg

N9rDQB7.jpeg

yAXkb5r.jpeg

XsW1DnX.jpeg

k4Ta1Vo.jpeg

KppYfaX.jpeg

0NEqUfR.jpeg

fXV1daU.jpeg

vQwkh8C.jpeg

hkbsOt6.jpeg

aYYnzjP.jpeg


https://www.driveaccord.net/threads...e.570743/page-14?post_id=6978894#post-6978894
 
Last edited:
PetitFrereArmada said:
Lithium Iron phosphate (LiFePO4) battery in my 2024 Honda Acxord Hybrid for "better mileage".

I consider myself a hypermiler. I drive a 2024 Honda Accord EX-L hybrid. In city driving, I consistently get over 55 mpg. On a few occasions, I have had a few full tanks of gas with over 60 mpg.

We have a member on the Accord forum who bought and installed a LifePO4 battery in his car and is getting over 65 mpg consistently. I decided to buy the same kind of battery and experiment with it.

Here is a link to my thread to see pictures. I will upload those pictures here soon.

https://www.driveaccord.net/threads...e.570743/page-14?post_id=6978894#post-6978894
Click to expand...
Redoiculous
 
I can claim I get 30 mpg out of my 6k pound 6.2l escalade esv by resetting the mpg on cruise control at 37 mph with the ac off but it doesn't mean it's honest. I don't believe this to be real. That is way too much of an efficiency improvement and the engineers would have already done this if it was this cheap and easy.
 
PetitFrereArmada said:
This is the highest mpg I have seen after 200 miles on my car.This is mostly Highway driving where the speed limit is 60 mph. My tires are set at 36 psi.
Click to expand...
Where in Texas is the highway speed limit 60 mph for any extended distance?
You would get even better mileage by inflating the tires to at least 50 psi. The few pounds you drop with that battery, means nearly nothing in a 3000+ pound car's mileage.
 
Pretty sure this vehicle does not have a traditional alternator. It charges the little starting battery from the hybrid generator through an inverter - at least that is how most of them work.

If so the insignificant amount of current required to charge that battery after a start is rounding error.

Maybe try one of those 1980's water injection things they used to advertise instead. :ROFLMAO:
 
PetitFrereArmada said:
As of today, after 2 days of the battery in my car, I am averaging 66 mpg after 238 miles so far.
dQXVBQA.jpeg
Click to expand...
Since you have not controlled for other variables, this result doesn’t actually demonstrate anything.

There are a whole host of things that impact miles per gallon, including speed, slope, use of accessories, temperature, wind, weight in the car, and others.

We’ve had numerous threads on the inaccuracy of the dashboard fuel measurement.

Look, I can reset the average fuel economy on my Toyota Tundra, 4WD, with a 5.7 L engine, it gets an EPA 17 miles per gallon on the highway - and if I time it just right, I could get 50 miles to the gallon displayed - I’ve done it, on the NJ Turnpike.

But that is not meaningful data. It is not data from which you can draw a conclusion, and neither is this.
 
SubieRubyRoo said:
How exactly is this increasing your mileage?
Click to expand...
To be honest, I do not know. But 2 people on here just explained kind of what the guy who did this to his Accord also explained.

As for me, I am doing this as an experiment to see if I will consistently get a higher mpg number than before I started using this battery. I will draw my conclusion in say 3 months or later. But I am collecting data as the days go by. This will mainly be for city driving an driving around town where the posted speed limit is not more than 65 mph.

There is a guy on the Accord forum who did 2 things to his car. He changed the tires and saw an increase in mpg. He later on changed the battery to LiFePO4 and saw another increase. He showed data for over 10,000 miles on odometer where his mpg is over 67 mpg in a 2024 Honda Accord Touring Hybrid.

Many people on the forum do not believe him, but he posted pictures showing the odometer with over 10,000 miles and over 67 mpg. So, anybody can chose to believe him or not.

I already have the same oem tires that he got. I then decided to buy the battery from China to see if I will consistently get better mpg than I normally get. So I am doing the experiment now. It will take me a while before I draw a conclusion.

This is not battery that is normally used in cars. In fact, some forum members told me my car would explode. Well, I hope that does not happen. I am just using this for as long as I can to see if I will consistently always get a better mpg number.
 
The only role of the low voltage battery in Honda hybrids is to facilitate communication among systems. It has no role in propelling the vehicle. Starting the engine, running the A/C, providing power to the power steering, propelling the vehicle, etc. is done only by the much larger HV Li-Ion battery. So I’d wager the effect on fuel efficiency would be nil.

And, if gaining significant fuel efficiency was that easy, wouldn’t Honda (and other hybrid OEMs) have figured that out by now?
 
JavierH19 said:
I can claim I get 30 mpg out of my 6k pound 6.2l escalade esv by resetting the mpg on cruise control at 37 mph with the ac off but it doesn't mean it's honest. I don't believe this to be real. That is way too much of an efficiency improvement and the engineers would have already done this if it was this cheap and easy.
Click to expand...
You can claim anything you want, but please, submit proof with pictures or a video so people can see and draw their own conclusions.

I have many pictures of my odometer posted. Like when I had the regular battery in this car and did used a whole tank of got where I got over 750 miles and with 65 mpg. I posted the picture to show the proof. I also have many where I did above 55 mpg for a whole tank of gas and I posted the pictures. I have posted many pictures to show proof of the mileage I claim.

So if you claim a certain mileage over many miles, show proof.

Show proof of your mpg with atleast over 300 miles driven. Then I will believe you. Do you have proof? Share it. Maybe some people will find it interesting.
 
Thermo1223 said:
Easy way to void your warranty....and ballsy to trust something from China at that.
Click to expand...
I do not think it will void my battery. I just installed a new battery.

I agree with you that not everything from China is trustworthy, but China does make some very good things too. Not everything from China is garbage. So that is a good thing too.
 
Vercingetorix said:
Showing pictures of the dashboard is not proof of anything. What needs to be shown is miles driven and number of gallons used.
Click to expand...
To show proof online these days, you need a video or a picture. The picture I posted shows the number of miles driven and the mpg over those miles. I will be surprised if you argue that because I am sure many other people on here understand it. Maybe you just want to insist you do not understand it.

The only way to know the gallons used, I have to go fill up my gas tank. The odometer does not show me how many gallons I have used so far.
 
You must log in or register to reply here.

Similar threads

O
Kirkland 0W-20 Syn, 10,347 Mi, 2022 Honda Accord Hybrid
Replies
16
Views
3K
I<3oil
B
Bought a very high miles 2019 Honda Accord Hybrid
2
Replies
20
Views
3K
brages
M
New to the driveway - 2024 RAV4 hybrid
2
Replies
25
Views
4K
Danno
F
5 years and 93K with my Honda Accord Hybrid
2
Replies
21
Views
14K
SJUMBA
P
Wayne Gerdes, founder of hypermiling, started with a Honda Accord
2
Replies
37
Views
5K
TimeFlies
Back
Top Bottom