What Size Battery For 2004 Honda Civic?

Group 51R battery is supported by all Honda Civics. All Honda Civics must meet this criteria out of the factory. Neither the year the car was constructed nor the type of engine it possesses are relevant. The top group 51R batteries for your Honda Civic are listed below:

8073-167 D51R YellowTop Dual Purpose AGM Battery from Optima Batteries

Due to its dual use and longer 36-month warranty, it is more expensive than the other batteries on our list. This battery can be used with a powerful gasoline or diesel engine or if your car has high-load electronics like heated seats, a high-wattage stereo, better headlights or fog lamps, etc. The AH value of this battery is 38, which is less than the AH values of the other two batteries. However, this distinction is meaningless because all Dual Purpose Batteries have lower AH values, which are offset by their greater capacity to store and provide reliable power compared to regular batteries.

How do I choose the right car battery for my vehicle?

All car batteries are organized according to group size. It gives the battery case’s dimensions and the battery’s terminals or posts’ orientation. You must be aware of the group size in order to get the proper battery for your vehicle.

Step 1: Verify your old battery’s group size. Look for the group size on a label on the battery if the battery that came with your car when you bought it is still in there.

What measurements does a 51R battery have?

Batteries from BCI Groups 51 and 51R are widely utilized as general-purpose/auxiliary batteries in a variety of applications that call for steady and dependable power sources. They are also very popular vehicle starting and dual-purpose batteries.

Despite the fact that the sizes of Groups 51 and 51R batteries are specified, these sizes do tend to fluctuate slightly since certain manufacturers tailor their batteries to match particular applications better (better performances). Check the size of your battery compartment and the actual size of the battery before ordering a certain model.

The physical dimensions of BCI Groups 51 and 51R batteries are 9.374 x 5.0625 x 8.8125 inches (23.8 x 12.9 x 22.3 cm), or anything very near to these measurements.

Most automotive battery compartments designed for Group 51 and 51R batteries may accommodate these batteries readily because they are typically constructed as vibration-resistant Absorbent Glass Mat (AGM) Sealed Lead Acid (SLA) batteries.

Some batteries (such as Group U1, which are still referred to as Group 51 batteries) are a little bit smaller in order to fit more readily. This results in less weight, but also smaller capacity, cranking Amps, and Reserve Capacity. But for the intended application, these specially designed batteries are a far superior choice (they are enhanced for a particular purpose) (Toyota Prius, Mazda Miata, etc.).

Additionally, certain batteries are produced as Group 51 (positive terminal to the LEFT) and Group 51R in order to facilitate easier installation (positive terminal to the RIGHT).

Anyhow, the following table includes a list of some of the most common Group 51 and Group 51R batteries along with a summary of each one’s key characteristics.

How much does a Honda Civic battery cost?

How much will a new Honda battery cost? Prices for a replacement automobile battery varies from roughly $45 to $250 depending on power, size, and quality.

Group-35, Group-51R

The Group-35 Battery, also known as Q85, is only an inch narrower than the Group-24 Battery and may be used for both. It can frequently be found in vintage American cars as well as Japanese cars and trucks like Toyota, Nissan, Mitsubishi, Subaru, and Acura.

Hondas, Nissan GTRs, and a few other Japanese cars use the Group-51 Battery. Given that it has the same height and length as the Group-35 but narrower front to back, it can really be utilized as a smaller, lighter version of that vehicle for racing.

Can I use a battery with a different group size in my car?

These days, automobile manufacturers design their automobiles to incredibly exacting standards. Using the incorrect size battery might result in a variety of issues, just like with other component or accessory. You should always replace your batteries with the size and output that the manufacturer advises, even if using the OEM brand isn’t always necessary.

What Happens if I Use a Battery That is Too Small

Naturally, your automobile may have trouble starting if you use a battery that is too small. Battery packs are

ranked according to both their life expectancy and CCAs (cold cranking amps). The CCA of a battery indicates how well it can start an engine in subfreezing conditions. Imagine attempting to start a big V-8 engine on a chilly Canadian morning with a battery intended for a tiny four-cylinder car. Additionally, a battery that is too small might not have enough power to run your car’s accessories, especially when it is off. Your battery may run out even if you only listen to the radio for a while. All types of batteries are taxed by frequent short travels, but tiny batteries are hit the hardest. Your battery won’t have time to fully recharge if you spend the entire day running errands, repeatedly starting the car, and only traveling small distances. The battery is constantly drawing charge rather than contributing to the load. Due to this situation, the alternator may overheat and eventually become damaged.

What Happens if I Use a Battery That is Too Large

Using a battery that is bigger than what your manufacturer suggests could lead to a number of issues. First off, if you purchase the battery off the shelf at a big box retailer, for instance, you might discover when you get home that it does not fit in the battery compartment of your car. Car batteries are available in a variety of physical sizes, top-mount and side-mount configurations, power and CCA ratings, and mounting options. Plus, a bigger battery might result in other problems even if it fits the box physically. Manufacturers carefully match their batteries and alternators to the power requirements of the vehicle. Your alternator’s lifespan could be shortened by an improper battery and alternator pairing. Imagine fitting a battery intended for a sizable, base-model six-cylinder luxury SUV with a lot of accessories into a compact, four-cylinder sedan.

The Bottom Line

Overall, when it comes to your car’s battery, it simply doesn’t make sense to deviate from the manufacturer’s advice. Purchasing a battery that is inadequate to save a few dollars could end up costing considerably more in repairs. Additionally, even though installing a larger battery always sounds alluring, doing so has drawbacks of its own.

Is a battery with a greater CCA better?

How do you choose the proper battery for your car? Here are a few brief suggestions to guide your decision-making.

For advice from the original equipment manufacturer, consult your vehicle’s manual on:

  • If the alternator fails, the reserve capacity (RC) assists to power your car’s electrical system. It indicates the number of minutes the battery can provide sufficient power without dropping below the necessary voltage to drive your car.
  • CCAs—cold cranking amps—are essential for effective cranking. It is the maximum amount of amps a battery can handle for 30 seconds at 0 degrees Fahrenheit before the battery voltage becomes useless.
  • The battery size that will match your vehicle’s physical dimensions best is referred to as the battery group size. There are many vehicles that can transport different sized groups.

In general, the greater the number, the better for both CCA and RC. However, if you reside in a cold environment, the CCA rating must to be taken into account while selecting a battery. In contrast, you don’t need as much CCA if you live in a hot area.

How many amps do I need for cold starting?

The size of the engine is the main determinant of the number of CCAs required to start a vehicle. A car battery should, according to conventional wisdom, have at least one CCA for every cubic inch of the engine’s displacement (two CCAs in the case of diesel engines).

What is engine displacement then? Engine displacement is a measurement of the total volume of air that an engine’s up-and-down piston movement has moved. The amount of air the engine can move is determined by the area of the pistons, their travel distance inside the cylinder, and the number of cylinders.

Fortunately, since vehicle manufacturers offer CCA specifications for each model and engine they produce, you don’t need to calculate this value yourself. If you bought your car used, especially, check your owner’s manual or the manufacturer’s website for this information. It’s likely that the prior owner replaced the battery with one that didn’t adhere to the CCA requirements for the car. Make sure you buy a new car battery that satisfies or exceeds the manufacturer’s requirements while looking for one.

How is an IMA battery bypassed?

Simply turn the large battery switch in the IMA box to off. None of the plugs need to be unplugged. If you exceed 4000 rpm, the battery light will illuminate for 10–20 seconds. Additionally, it briefly illuminates when you start the car for the first time.

How is the battery changed in a Honda Civic?

New things must replace the old:

  • Discover where the battery is located on your Honda.
  • The battery terminals can be found.
  • Your Honda should have its negative terminal disconnected.
  • Next, unplug the positive terminal.
  • Position the new battery in its place after removing the old one.
  • Use a tool to firmly tighten the terminal clamps.

What occurs if you install the incorrect size battery in your vehicle?

Incorrect battery sizing could alter the way electrical currents flow, leading to power surges that could harm the onboard computers or other parts.

Can a car battery die after being idle?

How long can a car sit before the battery dies if you don’t drive that much or are considering a vacation longer than two weeks? Your car battery’s age, the kind of vehicle you drive, and the weather all have an impact on the response.

Your car’s battery will typically last between four and two months when it is not being driven.

Your car’s battery is constantly in use, even while you’re not driving, which is why it can only be left parked for a short period of time before it dies. The clock, alarm, and radio on your dashboard, for instance, are all powered by your car battery even when the engine is off. Additionally, if you mistakenly leave the lights on, you can wake up the next morning with a dead battery.

The terms “parasitic drain” and “parasitic pull” can be used to describe this. The website RepairPal claims “A name for an electrical component that continues to suck power after it and the vehicle have been turned off is called a parasitic draw or drain.

In addition to parasitic drain reducing battery efficiency, the weather can also effect how well your battery performs. Your battery might not be as effective in severe heat or below zero degrees.

Due to their symbiotic relationship, your car battery and alternator can suffer if you go too long without driving. The alternator in your car keeps your battery charged and keeps everything running properly.

Apparently, Matthews Tire “Your battery starts the alternator, which then produces electricity to power your battery continually. When both are functioning properly, they produce the ideal amount of power, generating an electrical circuit that feeds itself to provide long-lasting performance.