I put a Japan made energizer 2300mh storage at least for 8 monts, charged before storage and surprise, they make my flash work very quick even at maximum power, recycling flash time is even better than manufacturer specs.
I had a 2004 Scion xb back in the day that was made in Japan. Had to get rid of it after the engine developed excessive oil consumption. Had a hell of a battery in it. Panasonic brand.
Yeah, the oem Panasonic battery is easy to kill. I replaced mine (2022 Turbo) with an AGM type. Most all batteries are made by Johnson Controls, under different names. The cheapest price I found was $179 with a 4 year warranty at Walmart. Everstart Platinum group 35. Was a 10 min job to remove and replace. They can even test your old one. The agm type is in the deep cycle family, it can be discharged quite a bit without any issues, the stock battery (flooded acid type) is easy to damage.
My 2019 Mazda 3 died on me randomly a couple months ago. The dealership ran a test on it and it came out fine. I changed it anyway as it was a stock 5 year old battery. It’s been fine since, even in the -20°C temps where I am.
I just replaced the battery on my eco drive from maybe 2008ish? Battery itself was 14 bucks on ebay, oem brand(Panasonic). Swap took 5 minutes.
I typically use what is shipped with the packaging. Most of my red dots are trijicon and they ship with energizer so I will continue to use it. I feel the companies do their own testing trail and error with battery life and usage at all power levels under all temperatures.
Energizer. Better QC than Duracell imho.
I had same issue with energizer batteries both lasted exactly 14 months. Luckily battery came with18 months warranty so in total they lasted 28 months.
Energizer is a shit battery. I had to put an Energizer one out of no options and that barely lasted a year.
This is the worst battery i tried, Enegizer lasted less than a year, maybe around 6 months only and it started dying.
Write your review
Help others - share your experience with this part.
Voted AGAINST engine oil RAVENOL on the rating page
The brake pads OEM Alfa Romeo got the first review!
The brake caliper OEM BMW got the first review!
The brake pads OEM Infiniti got the first review!
For wiper blades PIAA already 100 reviews.
For battery Energizer already 25 reviews.
In the rating best water pump already 12 brands participate!
In the rating best timing belt already 13 brands participate!
In the rating best head gasket already 3 brands participate!
In the auto rating oil filter for Volkswagen Passat already 5 brands participate!
In the auto rating brake pads for Mazda 5 already 10 brands participate!
In the auto rating tires for Subaru Outback already 50 brands participate!
For cabin filter Fram already 25 reviews.
Voted AGAINST engine oil RED LINE on the rating page
Voted AGAINST engine oil PENNZOIL on the rating page
If choosing battery across many manufacturers, check the part ranking. If your choice is down to two brands, the PartReview part comparisons help.
We compare battery across these categories:
In March 2026 on PartReview, battery Energizer were overall better than Panasonic.
In March 2026 on PartReview, battery Energizer were overall more popular than Panasonic.
By vote balance, battery Energizer surpassed Panasonic:
By number of reviews, battery Energizer surpassed Panasonic:
In March 2026, according to PartReview, battery Panasonic led more car-specific ratings than Energizer:
Panasonic are chosen by owners of cars such as: Toyota 4runner, and others.
Battery Energizer have not yet taken leading positions in car-specific ratings. You can help by adding a review and specifying your car.
If this comparison didn’t fully answer your question, there are many others on PartReview.
For example, comparisons of battery Panasonic with: OPTIMA, Varta, Bosch, OEM Subaru, OEM Volkswagen, YUASA, Tesla, Duralast, Exide, OEM BMW.
Also available: comparisons of battery Energizer with: OPTIMA, Varta, Bosch, OEM Subaru, OEM Volkswagen, YUASA, Tesla, Duralast, Exide, OEM BMW.
You can also see who is better among other battery manufacturers: OPTIMA or Varta, OPTIMA or Bosch, OPTIMA or OEM Subaru, OPTIMA or OEM Volkswagen, OPTIMA or YUASA.
