Just bought a Schumacher Sc1355 for $28.00 at Amazon.
Its a Cheap solution and maybe with these cars its the way to go if you keep them garaged for 3 or more days..........

 

I go 3-4 days without driving regularly & never had any warning lights or weak-sounding startup yet after nearly 21 months with my 2022 CX-30. Either your battery is bad/defective or something is amiss with your electrical/charging system or draw. My previous vehicle (2020 Toyota) had similar issues as what you describe & Toyota could never figure it out, always saying nothing was wrong (though the push button starter unit also completely failed during those 2 years). They replaced the factory battery with a new one 3 times in the 2 years that I kept it, due to repeated complete battery failures. I drove my 2020 Toyota just like I do my 2022 CX-30 - at least 2 days per week, usually for about 45-60 minutes of driving per outing - which is more than sufficient to keep a battery properly-exercised/charged in a vehicle with no underlying issues.

I still plan to proactively replace the sad stock 520-CCA Mazda battery in my CX-30 with something more robust before the 2 year mark - so in the next 3 months. I suggest you do the same, & if you keep having the same problem with a new, better-quality battery then it's likely your electrical/charging system and/or something with your particular vehicles passive-draw characteristics.

 

Johnny, see this link regarding a recall

BATTERY Drain Issue Special Service Program "NEW"

Mazda has recognized that the 2023 CX-30 has an issue with it's Remote Tuner module and software associated with it by the manufacturer of the unit. These Remote Tuner modules were built with outdated software and therefore the power shutdown processing of the module may not be completed. In...

www.cx30talk.com

.

This could well be the source of your issues.

Mazda has a reputation for reliability which is mostly deserved but unfortunately when there are problems the default is to deny there is a problem and blame the customer (see 10 years of Diesel engine woes in the UK and Europe which destroyed the reputation of the company). So yes of course a car should be able to sit for 2 weeks without being driven everyday. See this tale of woe

Ongoing Flat battery Problem

Hi, CX30 GT SPORT TECH ACTIVEX PETROL. I bought it new in March 2020.Since then The persistent flat battery problems persist.Despite 3 previous software Upgrades and numerous apologies I have had to call mazda assist 4 times due to flat battery,I also have had to Jump start it 3 times with...

www.cx30talk.com

This post seems to say that NA cars aren't affected so it's a confusing picture at best

Battery Drain Issue Special Service Program "NEW"

Mazda has recognized that the 2023 CX-9 and CX-5 (Canada) has an issue with it's Remote Tuner module and software associated with it by the manufacturer of the unit. These Remote Tuner modules were built with outdated software and therefore the power shutdown processing of the module may not be...

mazdas247.com

Battery problems seem endemic across all models and software issues seem to be at the core of them, your car might be affected by another issue other than the remote tuner.

Unfortunately the internet haa declared the battery to be weak rather than looking further into the issue which means people are uprating batteries needlessly or constantly replaced rather than having the problem properly diagnosed (the battery might be the issue but it should not be the only thing looked at). You need a dealership who have techs with the ability to recognise and isolate parasitic draw - in a Q7 I saw in a workshop it took a master tech 6 days to fully nail down a battery draw working through all the control modules

 

The Update are NOT for the cars made for the USA.................

 

I’ve never had my battery go flat on me, but I did have my sensors, warning, lights come on, many of them, and I was told that I need to drive longer, which I cannot do. I drive between 8 and 9 miles a week at most, so I invested in a battery maintainer And use this once per month for about three hours and thus far on my 2023 model USA car everything works out fine. Wonderful tool to have and I live in an apartment complex but have access to an outside plug to charge it.

 

I agree that's why I bought a Cheap battery maintainer.
I don't drive much during the week so to me it best to have it instead
of running back to the dealer.

 

I never had battery issues or concerns over 40 years of driving until the age of over-engineered tech-bloated vehicles landed on me with my 2020 Toyota. My older-school 2015 Toyota Yaris SE hatch before that was still on its original factory battery at 4 years & 60K miles. So far, no battery issues with my 2022 CX-30 even though I usually only drive 2 times per week these days for about 30-35 miles per trip (mostly which I do just to get out & exercise the vehicle some on a regular basis).

 

Had the same issue and took it in twice. They said it is normal. I bought a new battery 8 months ago and never had the issue again. Dealers suck.

 

This is also an option to track your battery health. Easy to install, works via Bluetooth to an app on your phone.

Amazon.com: Antigravity Battery Tracker Bluetooth Monitor System BTR-2 for 12V Lead/Acid Vehicle Batteries, Test Voltage Cranking Charging : Automotive

Buy Antigravity Battery Tracker Bluetooth Monitor System BTR-2 for 12V Lead/Acid Vehicle Batteries, Test Voltage Cranking Charging: Battery Chargers - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

www.amazon.com

Here is a link to the manual. https://antigravitybatteries.com/downloads/AG-Battery-Trackers-User-Manual.pdf

 

I'd suggest replacing the battery with a quality aftermarket unit. Just something like a Duralast Gold or similar from an auto parts store (not another Mazda battery from the dealership).

Get one with a high CCA (cold-cranking amps) rating.

https://www.autozone.com/batteries-starting-and-charging/battery/p/duralast-gold-battery-bci-group-size-47-650-cca-h5-dlg/832330_0_0

 

I just decided to bring back the car for the second time.
I can careless if the dealer keeps the car for a few days as long as they fix the problem
and maybe get a battery upgrade from them.
If it still fails when I get it back I will bring it back if problem is still there for the 3rd time.
After that if problem is still there I will go with the LEMON law for the same problems.
Maybe upgrade to a 2024 CX-30.

 

It doesn't surprise me at all. I can't imagine all the parasitic draw we have, especially centered around the Mazda Connect software. I stopped using the MyMazda App and shut off all the automatic updates in some vane attempt to stop the almost constant connections between my shut off car and Mazda's servers. I noticed that updates to vehicle status were constant throughout the nights when the car was parked and off and to me that could be a huge draw on the electrical system, battery included. I'd get updated status reports that my vehicle was unlocked and tire pressure updates well after my vehicle as off for the night. I hope they find some way to allow us to permanently shut down communications between my car and Mazda. That might help somewhat. In the mean time, I shut off as much as I could. Luckily, I drive at least 50 miles a day everyday.

 

I've never had an issue with the battery going flat (mines a 2020MY though), but others do. One issue is whether or not the car fully shuts down - you must lock the car. amd keep the key away from it (or, as I do, in a Faraday pouch) to ensure all systems shut down fully and are not periodically reawakened by the proximity of the key.

 

Why do you need to have the doors locked?
I leave mine unlocked but a day or few days the doors lock by themselves.
The Fob are always in the house aways from the car...............

 

 

This is very poor customer service. I would talk to service manager and insist they investigate further. There is a lemon law if they fail to help.

 

Had the same issue with my 2021 with original battery.
After "passing" numerous battery tests with Mazda and them telling me to drive it at least 10 minutes. The battery finally died. I replaced it with a much better one. Funny, I haven't had that annoying battery drain warning since.

 

Well the dealer has had my car for 3 days (Wed} and No phone call to pick it up as of yet lol.......

 

3 days? Wow! Mazda should just admit that they put sub par batteries in their vehicles and replace them with better ones. It would save everyone a lot of time and frustration.

 

I have had my 2023 CX-30 Select since June and for while at times after not driving the car for a few days that I would get a Screen on the dashboard saying that the Battery is Low and I should drive it a while to power up the battery. Well my battery died last week and the dealer kept the car for 3 days looking for a battery drain. The dealer said that the battery was dead but they charged it and it passes the mazda specs. Today (3 days of not driving the car}I got the same message on the dashboard screen saying that the Cx-30 needs to be driven to charge the battery. Dealer told me that I should be driving the car more often,it makes noooo sense to me?If I drive to a airport and leave my car for a week there you would think the car after a week should run? I never had a car that ever did this?.................

 

my 2021 cx30 turbo had same issue.
1- changed the battery but still had the same problem
2- finally there was a software update and the issue has been resolved

 

Picked up my 2023 Cx-30 today after a week without it.(1100 miles on the car}
This is the second time I bought back the Cx-30 because of Battery drain.
Mazda said that the Battery is Dead and they replaced it with a New one ,lets see how long the new one will last.

 

Good luck.

 

Well I did say that my local Mazda Dealer said that they replaced the battery under warranty.
And I only use my car twice a week just a few miles to go shopping.
I got a Email from Mazda Corp saying that they knew that my Local Mazda dealer installed a New Battery and also said maybe I should also use a Battery Maintainer.Makes NO Sense a Corp office letting me know a Battery Maintainer should be used just in case?
Every New car that I have bought for the last 40 years,I never had a problem at all with a battery and many of my cars were not driven for months and not 3 days.
Is the the New Norm?
Maybe when someones looking to buy a New Mazda that they tell the salesman that they want a reliable car that will be used once a week and maybe go to church on Sundays only and I am sure the Salesperson at Mazda will let them know before buying the car that they should have a Battery Maintainer lol.................

 

The latest and greatest vehicles now how so much tech and computers electronics to power them, that the battery is the heart of power to keep them alive. Even when shutoff there is a draw on the electrics.
Minor but it’s there. Even with the fob at a distance. Add in a sub premium battery and a vehicle that is not used often and more importantly only driven briefly, well there lies the issues.
Mazda is not alone with this as it is becoming more and more common with vehicles that fall under the above criteria.

 

Considering the passive/idle power-drain of newer, high-tech vehicles these days, all automakers should be putting premium/high-end batteries into their vehicles from the factory, even if that increases their vehicle MSRP price by $100 or whatever. Seems like common-sense for something as integral/core to a vehicle operation as a battery, & it's one of the most common complaints/issues people are having with newer vehicles, across all brands. Not exactly a good way to inspire brand confidence.

Even though I haven't had any battery issues with my 2022 CX-30 (unlike my 2020 Toyota), I admit that I've had more peace-of-mind since I recently proactively replaced the mediocre stock/factory battery in my CX-30 a bit shy of the 2 year mark, with something more robust/premium. I also plan to keep getting out & driving at least twice per week for at least 30-35 miles driven per outing, even if that means taking longer round-about routes to my destination(s) or just going for a random joy ride.

 

I had the battery in my CX 30 go dead too.
I brought it to the dealership and they replaced it. I was a car mechanic for years and suspected a bad battery. Even though it was a new car I've seen new batteries that were bad. I had a trickle charger too but the replacement battery is fine and needs no charging. I think the original battery was just defective.
I didn't change anything in the car and still have a camera I use in the cigarette lighter plug.
My car also needed the rear differential replaced because it made some terrible sounds and I feared it would lose a wheel, and so did the service manager at the dealership.
Other than these 2 problems I love the car its a fully optioned red CX30 turbo.
I'd like to put studded snows on it for winter. Like my CX 3 but not this year.
Good luck with your battery problem, a new battery might be needed to fix the problem because charging is a pain. Art

 

I have had a 2020 Dodge Challenger Scatpack that I had for 3 years and 7000 miles.
I hardly drove my Challenger in the Winter because Challengers suck in the snow.
And never once I had a Problem with the battery after a few weeks of not running.
Then I go into a Cx-30 and everything is upside down?

 

I too own a Dodge Challenger Scatpack and a CX-30. Exact same situation with me. Dodge is bullet proof. Mazda is bullet riddled with power problems.

 

And precisely the reason I got a battery maintainer I use once a month for about 2 / 3 hours tops. No issues. I don’t want to drive around for 30 minutes wasting gas just to keep my battery maintained.

 

Occasional-regular driving is also prudent for the conditioning of the various vehicle mechanicals/parts & to keep the oil/engine healthier & accumulated moisture out of it.

Plus, just getting out & driving is fun/relaxing when it isn't a tedious work commute. 🤠

 

I have had my 2023 CX-30 Select since June and for while at times after not driving the car for a few days that I would get a Screen on the dashboard saying that the Battery is Low and I should drive it a while to power up the battery. Well my battery died last week and the dealer kept the car for 3 days looking for a battery drain. The dealer said that the battery was dead but they charged it and it passes the mazda specs. Today (3 days of not driving the car}I got the same message on the dashboard screen saying that the Cx-30 needs to be driven to charge the battery. Dealer told me that I should be driving the car more often,it makes noooo sense to me?If I drive to a airport and leave my car for a week there you would think the car after a week should run? I never had a car that ever did this?.................

Mine was a first year in the US in Ma. A 2021 CX30 turbo in 2020. I've gotten that warning of low battery when I used the tailgate lift several times in a row and maybe had the doors open for a long time (20 minutes) with interior light on. I never had trouble starting the car with the replacement battery. The warning might be overly protective and look a battery surface charge and not the deep charge. Usually just waiting 15 minutes with everything off and the message ends. The first battery had the warning very often with little use of the above. The battery finally died in a shopping center and I had AAA come jump start me. The next day I told the dealership I need a battery and they needed to get the car fixed. They knew me because this was the third car I bought from them within 3 years. A CX 3 then 4 years later a CX30 for me and a Mazda 6 for the wife. They confirmed the battery was defective and replaced it under warranty. THEY ALSO FIXED THE REAR DIFFERENTIAL PROBLEM. They replaced the entire rear assembly under warranty, I never found out what caused it's failure and I asked. Good luck getting the battery sorted out. I know there are lots of electronics in these cars but the battery shouldn't crap out when just sitting a week or two. art

 

We will see,1st time Mazda said that the Battery was Dead but found nothing else Wrong buttt they were able to recharge the battery under Mazda Specs and said the battery was Ok.
Always thought when a battery died that it was Dead???
Anyways 3 days later I had the same problem and took the car back to Mazda and they said again that the Battery Died buttt this time they replaced the battery.
Lets see if it happens again and if it does it has to be something else wrong?

 

Well from what I have been reading here on this subject, it appears there were a batch of defective cheap batteries on the early crop of 30’s.
Just like the OEM tires being subpar, sometimes (always?) manufacturers will try to save a few bucks on a few items to increase the profit margin.
Usually (always?) at the owner’s disappointment.

With Mazda wanting to play in the near luxury category of vehicles, they need to step up to the plate and deliver an all around premium product not just handling and interiors.

Too much to ask?🤷🏼‍♂️