Treeri Posted August 29 Share Posted August 29 The battery warnings have begun on my 2021 cx30, and upon inspection, I have seen that the original battery has a capacity of just 55AH and a cold cranking amp (CCA) rating of 355. Many individuals often discuss the idea of replacing the current battery with a higher-capacity AGM cell, which may have larger dimensions. What factors should I be cautious about regarding dimensions? Specifically, should I ensure that the tie down fits properly and consider replacing the battery insulating jacket? Which specific battery type, such as 005, 027, or 096, is compatible with the CX30 in the UK? Quote Link to comment Share on other sites More sharing options...
torque2me Posted August 29 Share Posted August 29 Is your warranty still valid? Within a span of 2 years, my 2021 CX 30 vehicle's battery consistently provided low battery alarms whenever I left the doors open, such as when I vacuumed the car or made 3 trips with the hatch open. We were quite frustrated when camping since we were unable to unload the vehicle due to the warning. The dealer maintained that it was within the expected range of behaviour. I vehemently asserted that such was not the case. They contended that it was due to the cold and within the expected range. The winters in San Diego can be quite harsh, with temperatures dropping as low as 50 degrees Fahrenheit. I may have had some discomfort in my eyes due to excessive eye-rolling in response to this statement. After persistently expressing dissatisfaction for a year, they finally replaced it free of charge as per the guarantee, and I have not encountered any further notifications after then. Even after camping for two consecutive days, the hatch remained open and closed without any issues. especially in the freezing temperatures of 0 degrees Fahrenheit, the car can start without any issues, especially in mountainous regions. Quote Link to comment Share on other sites More sharing options...
rab60bit88 Posted August 29 Share Posted August 29 According to Mazda's specs, it should be possible to get a battery with much more capacity that can fit into the available area. Conduct internet research on many battery manufacturers and dealers. The Cold Cranking Amps (CCA) of the typical battery in the USA is insufficient at 525. Choose a battery with a minimum Cold Cranking Amps (CCA) rating of 650, according to the US standard. My device malfunctioned in January 2024, after about one year and five months, due to a prolonged period of very low temperatures in New Jersey. Additionally, please verify whether there are any devices that use the battery's power, such as a dashcam that remains operational even when the vehicle is not in use. Quote Link to comment Share on other sites More sharing options...
EtherealWanderer Posted August 29 Share Posted August 29 Disregard any guidance provided by NA on the replacement of the battery, since their CX-30 model is not equipped with M-Hybrid technology. A while back, I reached out to Mazda UK with the same inquiry and received the following response from them: The CX-30's Mild Hybrid system is specifically engineered and validated to be compatible with a conventional lead acid JIS 55D23L or DIN 12V 60Ah/20HR - 12V 65Ah/20HR battery. Mazda does not endorse the use of any battery type or size other than the recommended one. Furthermore, Mazda strongly advises against installing an EFB or AGM battery, since they have not undergone testing or received approval for use in the vehicle. If you need any more help, please don't hesitate to respond to this email or contact us at 03457 484848. The dimensions of the battery tray of the CX-30 are 232 mm x 173 mm x 255 mm (H). Therefore, it may be classified as 005L based on these measurements. Nevertheless, I am of the opinion that several individuals on this site successfully installed the 027 kind without encountering any difficulties. If you input your vehicle registration into the Halfords search function, you will be presented with two choices, both of which are of the 027 kind. However, Tayna batteries provide many choices for the 005L type. Please inform us of the choice you ultimately choose. Quote Link to comment Share on other sites More sharing options...
honeycut_mazda5 Posted August 29 Share Posted August 29 Varta recommends the following options for the CX-30 SkyActiv-X: https://www.varta-automotive.it/it-it/prodotti/varta-blue-dynamic-efb/565-501-065 Â https://www.varta-automotive.it/it-it/prodotti/varta-blue-dynamic/560-410-054 Quote Link to comment Share on other sites More sharing options...
honeycut_mazda5 Posted August 29 Share Posted August 29 Both of them seem to be in accordance with the specifications mentioned in the handbook. However, one of them is EFB while the other one is not. Based on my understanding, EFB is designed for vehicles in which the primary battery is replenished by braking, however in our cars, the smaller 24V mild hybrid battery is recharged. Is that correct? However, I fail to see any potential negative consequences of implementing an EFB. Â Quote Link to comment Share on other sites More sharing options...
Treeri Posted August 29 Author Share Posted August 29 Thank you - that provides clear understanding. The variation in specifications for the same automobile across various markets might be perplexing. Currently, I am simply receiving battery warnings without experiencing any real failure to start. The automobile's original warranty has expired, but I have an extended warranty that is valid for one year since I purchased the car on July 24th. I am uncertain if Mazda will provide coverage for the battery. I have included a photograph of the battery for reference. It seems to be of Japanese origin. Quote Link to comment Share on other sites More sharing options...
EtherealWanderer Posted August 29 Share Posted August 29 The Panasonic battery used in Mazda CX-30s in the UK is a standard model. The issue is in its very low Cold Cranking Amps (CCA). Nevertheless, the function of a 12V battery in a hybrid automobile, such as an M-Hybrid, differs dramatically from that in a traditional internal combustion engine (ICE) vehicle. Within a hybrid car, the 12V battery is only used to provide power to essential electrical components while the engine is not in operation. After the engine is activated, the hybrid battery (specifically a Li-ion 24V battery in the case of the CX-30) assumes responsibility for powering all electrical systems. This incorporates start-stop (i-Stop in Mazda's nomenclature) actions. If you visit Motabitz and enquire about the suggested battery for your car, they will inform you that it must be a strat-stop certified battery, namely an EFB or AGM battery, as indicated by their guide. Nevertheless, this assertion is erroneous, as shown by the response from Mazda UK and the irrefutable fact that the i-Stop functionality of the CX-30 is entirely independent of the 12V battery. During my conversation with a parts manager at my nearby Halfords supermarket, he acknowledged that their understanding of hybrids and EVs, namely their electrical systems and needs, is somewhat limited. They obediently adhere to the recommendations provided by their computers as a good fit. Regarding the matter of extended warranty, you are indeed true that a 12V battery is not included in the coverage. Nevertheless, the guarantee provided by the manufacturer for your 24V battery lasts for a duration of 8 years. Quote Link to comment Share on other sites More sharing options...
NAVITEL Posted August 29 Share Posted August 29 That batteries is identical to the one I have in my skyactive x. The other day, when I was organising the media, I left the doors open and the ignition on for a period of time, which resulted in the battery losing all its charge. Fortunately, my compact power pack successfully started the device. However, I am now concerned about the possibility of it abandoning me in a helpless situation. I have decided to heed EtherealWanderer's recommendation and purchase a 65Ah battery. Quote Link to comment Share on other sites More sharing options...
Treeri Posted August 29 Author Share Posted August 29 I just sold my 2015 Kia, which was 9 years old and still had its original battery. My wife's 2018 Astra is still functioning with its original battery without any problems. What is Mazda doing? Quote Link to comment Share on other sites More sharing options...
NAVITEL Posted August 29 Share Posted August 29 It is fortunate that you had a longer battery life than average. Typically, batteries tend to last about 5 or 6 years. In the case of your previous vehicle, the Kia Sportage (2017), you had to replace the battery after 6 years when it stopped functioning. It is possible that your prior automobiles had or now have far less electrical components operating in the background. Quote Link to comment Share on other sites More sharing options...
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