Best 51R Car Battery (2024 Update)

The 12-Volt Battery is an exceptional piece of equipment that packs a powerful punch with its 450 Cold Cranking Amps. Measuring at 9 5/16" x 5 1/16" x 8 15/16" tall and weighing in at 26 pounds, this battery is the perfect size and weight for any vehicle.

Built with a Polypropylene case, this battery has a reserve capacity of 66 minutes for constant performance. It is designed to provide optimal starting power in even the worst weather conditions. Whether you're dealing with a cold winter morning or a scorching hot summer day, this battery will deliver reliable power every time.

The 12-Volt Battery is also fifteen times more resistant to vibration, ensuring that it will last longer than other batteries on the market. This feature makes it a great choice for off-road vehicles or any vehicle that experiences a lot of bumpy terrain.

Please note that this item is not for sale in Catalina Island.

This product boasts impressive specifications and features that make it a reliable choice for those in need of a powerful battery. With a 6-volt capacity and 800 cold cranking amps, this battery is sure to provide optimal starting power even in harsh weather conditions. Its reserve capacity of 100 minutes ensures constant performance, giving users peace of mind knowing that their battery will remain dependable when needed most.

Constructed with polypropylene, this battery is built to withstand harsh conditions and is 15 times more resistant to vibration than other batteries on the market. Its C20 capacity of 50 Ah provides ample power for various applications, making it a versatile option for a wide range of users.

Measuring at 10.06 inches in length, 3.63 inches in width, and 8.13 inches in height, this battery is compact yet powerful. Additionally, its weight of 18.5 pounds makes it easy to transport and mountable in virtually any position, allowing for greater flexibility in installation.

This battery comes equipped with SAE posts, ensuring compatibility with a variety of vehicles and applications. However, it is important to note that this item is not for sale in Catalina Island.

Looking for a reliable and long-lasting battery? Look no further than the Premium Lithium Iron Phosphate Battery (LifePO4) Cells! With a capacity of up to 80% after just one charge and discharge cycle under 100% DOD condition for 3,500 cycles, this battery is built to last. And with its longer cycle life of up to 3500~8000 cycles, you can be sure that it will keep your devices running for years to come.

One of the standout features of this battery is its built-in BMS and low-temperature charging protection. The powerful BMS automatically stops recharging under temperatures of 0 ℃, protecting the battery from damage. It also prevents the most common issues that cause battery failure, such as temperature volatility, overcharge, over-discharge, over-current, overloading, overheating, and ground faults.

This versatile battery can be extended up to 4 in series and 2 in parallel (max 4S2P) to get more capacity (max 36Ah) and higher voltage (12V, 24V, 36V, 48V). It's perfect for a wide variety of applications, including UPS backup, lighting (LED strip, etc.), digital/CCTV cameras, portable TV, e-Robot, electric vehicles (e-Bike, e-Robot, kid electric car), DIY loudspeaker, 12V router, air pump, fish finder, golf car, trolling motor, motorhome/RV & camper, Houseboat, Travel Trailer, Dump Trailer, and more.

This LiFePO4 battery is also lightweight and versatile, weighing only 30% of an equivalent lead-acid battery. With no acid in the battery, you can safely mount it in any position, making it perfect for marine, RV, campers, off-road, and off-grid applications.

Best of all, this battery comes with a 3-year warranty and excellent customer service. The professional customer service team provides a strongly 3-year warranty, 30-day money-back, and free lifelong technical support. With this battery, you can be confident in its quality, as it has been strictly tested before shipping.

Introducing Powertex’s LiFePO4 BCI Group 51 battery – a lightweight and reliable option for your automotive needs. With a rated voltage 0.8V higher than a lead-acid battery, this battery offers more discharge power, improving fuel combustion efficiency and providing a faster car start, lower fuel consumption, lighter throttle, more responsive engine, and increased power.

Weighing in at only 10.6 lbs, this lithium iron phosphate battery is significantly lighter than its standard lead-acid equivalent, which can weigh up to 27.8 lbs. Additionally, Powertex’s LiFePO4 batteries come standard with a built-in BMS (Battery Management System) that protects it from the most common causes of battery failure.

Powertex LiFePO4 Lithium Iron Phosphate car batteries feature Grade A cells, offering the highest level of quality and reliability. These cells are UL certified, and our batteries UN38.3 & RoHs certified. Our batteries provide more than 2,000 cycles at 80% DOD (depth of discharge), whereas a lead-acid battery only offers 200~500 cycles. This results in a lifespan of about 5 to 10 years for our lithium iron phosphate batteries.

We stand by and believe in our products, which is why we test all batteries before shipping and offer a 2-year warranty. For optimal charging, we highly recommend using a LiFePO4 charger, as SLA chargers may not reach the optimal 14.4V-15V LiFePO4 charging voltage. Failure to reach full charge can result in reduced battery performance.

The Uplus Start and Stop AGM battery is a reliable and efficient power source for vehicles with large electrical loads, frequent short trips, or stop-and-go traffic. Made with high density negative paste and enhanced life alloy or silver calcium stamped alloy, this battery has four times the cycle life compared to standard conventional batteries.

With a calcium lead positive grid, this AGM battery maximizes conductivity and allows for low resistance, providing both deep-cycle and cranking power. Even in cold winter temperatures, the Uplus Start and Stop AGM battery delivers the highest cold cranking amperes (760CCA) for reliable engine starts.

Safety is a top priority with this battery. Its vent cap design resists acid leakage, and it is 15 times more vibration-resistant than other batteries. Additionally, the Uplus Start and Stop AGM battery is designed with top-level safety features and contains absolutely no free acid.

This battery is easy to install, as it is an international standard size BCI Group 48 (H6/L3). It is ideal for vehicles that sit unused for days or weeks at a time, as well as those with large electrical loads such as DVD players, navigation systems, heated seats, and power doors. It is also perfect for vehicles used for frequent short trips or in stop-and-go traffic.

The Uplus Start and Stop AGM battery comes with a 3-year warranty and is backed by a free replacement warranty. With a US local warehouse and fast delivery in 1-3 working days, you can be confident in your purchase. If Amazon does not handle returns for battery-related products, buyers can contact the seller directly for 100% after-sales support.

Invest in a reliable and efficient power source for your vehicle with the Uplus Start and Stop AGM battery.

Introducing a high-quality and reliable vehicle battery that can provide you with outstanding performance and efficiency. This 12V 70Ah AGM (Maintenance Free) Battery is designed to meet the needs of your vehicle, with dimensions of 10.95 inches x 6.89 inches x 7.48 inches and a weight of 46.53 Lbs.

One of the most impressive features of this battery is its start and stop function, which is perfect for cars with start-stop function. This function can save you 10% of gas costs in each driving and reduce 20% CO₂. You can rely on it to help you get the most out of your vehicle.

Additionally, this battery is designed for fast charging and has a charging time that is 40% faster than a sla battery. This fast charging stems from new materials used on the battery to improve the battery charging acceptance. The discharge capacity is also raised to the highest, ensuring that you can use your vehicle without any interruptions.

Safety is a top priority when it comes to vehicle batteries, and this battery is no exception. The use of our patented alloy greatly improves the battery's corrosion resistance and leak-proof performance. The maintenance-free design allows you to use the battery without adding acid and water, ensuring your safety while using it.

To further ensure your satisfaction, we provide a 7-year warranty for this battery. We have established offices and warehouses in the USA, so you can rest assured that we are always available to address your concerns. Our customer service team is prompt and reliable, and we will reply to your email within 12 hours.

The 12-Volt, 800 Cold Cranking Amps battery is an exceptional product that guarantees optimal performance even in harsh weather conditions. Its compact size of 10" x 6 7/8" x 7 13/16" tall and weight of 38.8 pounds make it easy to install and carry around, and its dual SAE and GM Posts make it highly versatile.

One of the most impressive features of this battery is its reserve capacity of 100 minutes, which ensures constant performance throughout its lifespan. Whether you're running an extensive audio system or using power-hungry accessories, this battery is sure to keep your vehicle running smoothly.

The battery is also designed to be highly resilient, thanks to its ability to resist vibration up to fifteen times more than other batteries. This feature ensures that it can withstand even the most challenging terrain without compromising its performance.

The battery is completely spill-proof and can be mounted in virtually any position, making it highly convenient for users. In addition, it may come with a carrying handle that makes it easy to move around or place in the battery holder.

Please note that this item is not available for sale in Catalina Island, and it requires a battery charger of 13.8 to 15.0 volts, 10 amps maximum, for approximately six to twelve hours. Its alternator requires 13.3 to 15 volts with no amperage limit.

The ODYSSEY battery boasts impressive parameters and specifications that make it a reliable and efficient power source. With a 170 CCA rating, it delivers a strong and consistent performance. It also comes with a better warranty than most batteries on the market, offering a limited 2-year full replacement warranty that is not pro rata. This ensures that customers can enjoy peace of mind and confidence in their purchase.

The ODYSSEY battery is designed to have a longer service life than conventional deep cycle batteries, lasting anywhere from 3 to 10 years. This means that customers can save time and money in the long run as they won't need to replace their battery as frequently. It also has a longer cycle life, lasting up to 70% longer than conventional deep cycle batteries, with up to 400 cycles at 80% depth of discharge. The high stable voltage it delivers for longer periods of time is a testament to its superior design.

The ODYSSEY battery recharges faster than any other sealed lead battery on the market, with a recharge efficiency of 100% in just 4-6 hours. This means customers can quickly get back to using their devices without having to wait for an extended period. The battery also offers mounting flexibility, thanks to its non-spillable design, which allows for easy installation in various positions without fear of leaking.

The ODYSSEY battery is designed to withstand harsh conditions, with vibration resistance that protects against high-impact shock and mechanical vibration. It is also extreme temperature tolerant, which means it can function efficiently in both hot and cold environments.

Please note that this item is not for sale in Catalina Island. Additionally, the ODYSSEY battery is classified as a Hazmat item and is non-returnable. Overall, the ODYSSEY battery is a top-quality power source that delivers reliable and efficient performance.

The battery in question boasts a Cold Crank Amp (CCA) of 330, making it a reliable option for powering various vehicles and equipment. What sets it apart from other batteries is its limited 3 and 4 year full replacement warranty, as opposed to a pro rata one.

In terms of service life, the ODYSSEY battery stands out with a lifespan of 3 to 10 years. This means that it not only saves consumers money and time, but also helps to avoid the frustration that comes with frequent battery replacements.

The battery also has a longer cycle life compared to conventional deep cycle batteries, with a 70% increase in cycle life. It can handle up to 400 cycles at 80% depth of discharge, maintaining a high and stable voltage for longer periods of time.

One of the most impressive features of this battery is its recharge efficiency. It has the highest recharge efficiency of any sealed lead battery available, capable of reaching a full 100% recharge in just 4 to 6 hours. This makes it a perfect choice for those who need a quick, reliable recharge for their battery.

The battery being reviewed has an impressive Cold Crank Ampere (CCA) rating of 170, ensuring reliable and efficient starting power even in cold temperatures. It comes with a limited 2-year full replacement warranty, providing customers with peace of mind knowing that they are protected from manufacturing defects.

This battery boasts a longer service life compared to conventional deep cycle batteries, with a range of 3-10 years. Additionally, it has a 70% longer cycle life, providing up to 400 cycles at an 80% depth of discharge. This means that it can maintain a high stable voltage for longer periods of time, ensuring consistent performance and reliability.

One of the standout features of this battery is its faster recharge capability. It has the highest recharge efficiency of any sealed lead battery available, capable of a 100% recharge in just 4-6 hours. This means less downtime and more time spent on the road.

The non-spillable design of this battery provides greater mounting flexibility, allowing for safe installation in a variety of positions. The vibration resistance design also protects against high impact shock and mechanical vibration, ensuring the battery remains in good condition for longer.

Furthermore, this battery is extremely temperature tolerant, making it suitable for use in a wide range of climates. It is important to note that this item is not available for sale in Catalina Island.