Drive Accord Honda Forums - Reply to Topic |
Thread: Upgrade/Replace 51R group battery size to group 35 or 24F with hardware Reply to Thread
Send Trackbacks to (Separate multiple URLs with spaces) :
Post Icons
You may choose an icon for your message from the following list:

Register Now

In order to be able to post messages on the Drive Accord Honda Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
The answer to the random question may be found under the Off Topic section of the forums and in the "Drive Accord Forums" category.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Additional Options
Miscellaneous Options

Topic Review (Newest First)
02-03-2018 10:10 AM
51R vs 35 Group

Thanks for this info - Currently working this exact replacement issue !! Have a great day.
01-06-2018 05:14 AM
jb4674 I put a 34 as well in my 2014 EX and I didn't use any upgraded parts. I took the plastic box out, replaced the battery and used the same tie down.
01-05-2018 07:50 PM

How I put a Group 34 AGM in a 2014 Sport without needing any special V6 parts.
01-05-2018 05:09 PM
SlvrDragon50 Just threw in the 24F battery as an emergency until the actual OEM parts come in. Car starts up sooooooooooooooo much better.
01-05-2018 12:34 PM
rookie My car is just over a year old so no issues yet but... imagine my surprise when I realized (just now) that my 7th gen also came with 51R battery (and I have been driving it since 2005). And you know what - I never had a problem...

All of that being said - I appreciate knowing exactly what I need if I want to go up to a larger battery when time comes; which I think I will do (likely 35). Seems like the 9th gen has a lot more load on the battery when in Aux mode and sometimes I do that.
01-05-2018 08:29 AM
SlvrDragon50 2nd battery dead but out of warranty now A little under a year for this one.

Just bought all the OEM parts to put in the 24F battery (~$60 shipped). Will have to find a good 24F battery to drop in.
09-04-2017 06:41 PM
Originally Posted by greg1c View Post
It is true you can do this without new hardware, but it will look like a factory install if you have the hardware. The plastic covers are there to protect the battery in a collision and to protect the car from leaking acid and a battery explosion.

Sent from my Nexus 5X using Tapatalk
Can I delete the BSM (battery sensor) without having a constant light on in the dash? I didn't like the thing before, and even less since they started recalling them. My VIN still comes up empty for the recall on Honda owner's website. I tested the sensor, and it passed, and I haven't had any issues, yet. I'm probably going to replace the 51r with either a 35 or 24 when the time comes.
09-04-2017 05:32 PM
greg1c It is true you can do this without new hardware, but it will look like a factory install if you have the hardware. The plastic covers are there to protect the battery in a collision and to protect the car from leaking acid and a battery explosion.

Sent from my Nexus 5X using Tapatalk
09-02-2017 12:04 PM
Originally Posted by oOKhanhOo View Post
Don't waste you money on box and cover. You only need the plate and one of the bolt. You can reuse the other one that came with the car. I don't remember which one. Buy both don't take it out the bag, put it it where it's suppose to go and see if you have enough thread or next to the old bolt. Return the one that you don't need.
Just figured out that none of these parts are necessary if you want to do the cheapest conversion. Just got rid of the OEM 51R battery (which was previously replaced under warranty and conked out after 2 years). Remove and discard the existing battery box and place the 24F battery down. Use the longest bolt on the side that's closer to the front of the car and insert into one of the holes available on the metal plate. Bend the tab on existing hold down plate and attach the bolt to the hold down plate. There are just enough threads for the bolt nut to thread through (1-2 threads stick out through the top of the bolt). Use the smaller bolt on the other side and voila ... your only cost is the price of the 24F battery! The battery I got is the DieHard Gold 50923 (rated high on CR as of 9/2/17)
05-29-2017 08:15 AM
Originally Posted by Dimon aggie View Post
Question: When replacing an original 51F with a 24F, is a larger-gauge ground cable required?
No. You aren't changing the amount of power the car draws...Just giving it...a deeper well to draw from
05-29-2017 07:47 AM
Dimon aggie Question: When replacing an original 51F with a 24F, is a larger-gauge ground cable required?
04-25-2017 10:25 AM
Originally Posted by chasemyaccord View Post
I just popped in an Interstate 24F from Costco ($83.99, such a steal) and everything seems great. 42 month warranty period is awesome too.
Was wondering what the Costco price was and have been too lazy to drive over and check it out. That's even cheaper than the Walmart Everstart-Maxx. Pretty sure my 2013 V6 has the original battery (bought the car last December) and it's over 4 years old based on the vehicle build date. Will most likely spring for a new one before my summer trip.
04-25-2017 01:00 AM
Pushinair247 Just swapped my original 51R with a 24F. I bought the battery box (tray) for the V6, but decided to save the money and not buy the plastic battery cover. Was able to use the original hold-down bar and bolts/nuts.
04-12-2017 02:58 PM
Originally Posted by desertrat View Post
I don't know for sure, some people on here really seem to like sealed batteries. I have had better luck with the kind you can add water to. I usually check mine once every oil change and add distilled water when needed.
So true. I am on my 3rd. sealed battery, they last 3 to almost 4 yrs.(84 month warr.). A battery you can add distilled water to will last much longer but most people see the "maintenance free" & think you never have to check the water level in the cells.
04-12-2017 02:20 PM
rawdatalab I went with the Walmart "Canadian" 24F (725 CCA) and splurged on the V6 plate to hold it down. The flattened i4 plate was doing the job, but I didn't like the way it was digging into the battery casing. Couldn't justify $60+ for the tray/cover, though.

Now I'm ready for NYC winters.
This thread has more than 15 replies. Click here to review the whole thread.

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

For the best viewing experience please update your browser to

Related pages

acura tl service b1obd p0137what does discount tire warranty coverblackfire paint sealantlowered honda accord coupe2005 nissan altima hid kitunlock honda civic radiosonax pnsinstall aftermarket sunroofalpine type r grillnon vtec to vtec conversion2006 honda accord radio1995 lexus sc400 mpghow progressive snapshot worksadditive to stop oil burningmetal scraping sound when drivingbreaker bar harbor freight06 acura tl radio codebluebatmobile overlayskosie k1honda exl vs ex2006 acura tl s typestuck parking brakerally armourhonda accord atf changehonda accord water pump replacement costgta carkitshonda technical service bulletinsmugen gas caphonda ecm repairpush rivetnokian hakkapeliitta rsi pricewinter maxx review50k miles maintenancehybrid audio clarus reviewduval honda jacksonville fl91 honda accord speedometer not workingcarproof couponelectronic sound dampeninghonda customer service radio coderoyal honda metairiebrake fluid reservoir emptyhonda huggins servicehonda accord paddle shifters2006 honda accord o2 sensor0w-20 vs 5w-20how much to replace rear brakes and rotorshonda accord rotorsmotor oil for 1996 honda accord2006 honda civic coupe gas mileageyonaka coilovers integraphilips 9006 standard halogen headlight bulbtraction control button not working2006 honda accord recall2011 camaro v6 oil changehow many quarts of oil does a mini cooper takehonda idle control valvealpine type r 12 subsjdm edmonton2004 honda accord headlight assemblyhonda s2000 clutch problemscar keyhole wont turn1990 honda accord seat coversmustang cobra forumhonda alternator replacement2001 honda odyssey oil changehonda crv ignition switchi hear a grinding noise when im driving2002 honda civic lx gas mileagewindow tint front windshield stripcan you siphon gas from new carsgrabit screw extractor instructionsfujita airc3 rs7303.5 vtec enginehow do i get radio code for my hondacrv oil capacity5 lug bolt pattern guide