Our Fullriver batteries work flawlessly and are the best choice we could have made. Best of all, they are totally maintenance-free with no outgassing. We've now had all of the batteries in place for over a year and a half, and our Fullriver AGMs start our engine instantly every time, even in cold weather. When our research led us to Fullriver's Full Throttle series AGM batteries, we found that we could not only meet the CCA requirements but exceed them by a considerable margin. We commonly think of AGMs as an upgrade from flooded for deep-cycle house batteries, but not necessarily able to handle the demands of starting a big diesel engine. The question was whether or not there were AGMs (we use two in parallel) that could provide the cold-cranking amps our 400 HP Cummins ISL requires. We're pretty obsessive in both the planning and execution of our RV projects, so it was a given that we didn't want to leave the old flooded chassis batteries in place, but rather upgrade them to AGM for both freedom from maintenance, and lack of outgassing to protect our expensive new lithium system. Since the house batteries are in the same compartment as our chassis batteries, that meant we'd either have to expose the new lithium system to the outgassing of our old flooded lead-acid chassis batteries or replace the chassis batteries too. If you can’t find the right battery in the listed group, then you can use this car battery size chart to find an equivalent using another battery classification system.We've been RVing full-time for nearly 17 years, and last year we decided to upgrade our house battery bank to lithium. To create a thin plate lead carbon battery, we start with conventional lead-acid chemistry and add carbon components to the. EN and DIN are other battery group classification systems that you will sometimes see in owner’s manuals or when shopping for batteries. The NSB BLUE+ Battery ® delivers ultra fast recharge and exceptional PSoC cycling performance, with a design life 12+ years at 20☌ (68☏) and a shelf life of up to 24 months. The following battery group size chart explains the most common BCI battery groups and their specifications.īattery Groups Cross Reference Chart – BCI, EN, DIN Equivalents and Conversions ChartĪlthough BCI is the most common battery group classification system in the United States, others do exist. BCI Battery Group Size ChartīCI is the most common system used to classify battery group sizes. This is especially true in colder weather when it takes more power to turn over the engine. If you get a battery that is undersized for your car, then it will not start. You should always get a battery that has enough amps to start your vehicle and maintain the power needed to run modern electronics. Getting the wrong battery means that you might not be able to hook up the cables. Secondly, batteries have battery posts in different positions. Otherwise, the battery could move around and get damaged or damage the vehicle. It is important to choose a battery that has a snug fit in the tray. The Best Group 51R, 51 Battery – Buyer’s Guide Choosing the Right Batteryįirst, each vehicle comes with a specific battery tray size, whether it’s a car, truck, SUV, commercial vehicle, boat, recreational vehicle, or other vehicles. It also provides the length, width, height, type of assembly, terminal positions, and which post is the positive terminal. The designation gives you information about the intended application and type of vehicle for which the battery is intended. BCI currently lists over 130 different battery group designations. These numbers refer to the physical size of the battery case. When choosing a battery, you will hear terms like, “ group 51R” or “ type 31 marine” battery. BCI encourages research and innovation to improve the safety, efficiency, and sustainability of battery technology. The organization also promotes legislation that pertains to the safe recycling and handling of lead-acid batteries. This is a trade association that includes manufacturers, recyclers, distributor, and retailer organizations that supply original and after-market batteries.īCI sets the standards for the dimensions, weights, and testing procedures for any battery that is sold in the United States. BCI stands for Battery Council International. These numbers and letters are the BCI group size of the battery. When purchasing a battery, you will see a series of numbers and letters in the name. Alexa for Car What is Battery Group Size?
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