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CentIoT - 5S 15A 18.5V 21V Battery Charging Module PCB BMS Protection Board For 5 Series lithium LicoO2 Limn2O4 18650 battery - With Balance Function (15A)Brand: CentIoT Features: Suitable for 5 string 18650 batteries or polymer lithium battery series combination, it has balancing function in built Charging Voltage: 21V; Charging current: 15A (MAX), Lampshift maximum discharge current: 15A, Instantaneous discharge current: 25A Over current protection: 50 55 60 A; Over current protection delay: 20 25 30mS; Single section since the power consumption: 30uA; Single section between the power consumption: 3uA
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.7 ★★★★★
Based on 1634 reviews
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Product Reviews
★★★★★ 5
Meaty and flavorful
I ate these straight from the tin at room temperature, sometimes sopping up the extra liquid with decent bread.
I purchased these because I wanted to try an alternative to the King Oscar. I've tried a couple different kinds of mackerel over the years, and while the King Oscar has been the best I find their olive oil varieties to be a bit acrid.
Not so with these Otter Kingdom fillets. Theses are actual fillets, so they are larger and meatier, and in my experience they have a looser grain than the mackerel I'm used to. They are high-quality, so I'm not detecting any bones and there's no formaldehyde-flavor, no imperfections in the cut. The oil is quite thin/watery and fairly small in volume. This isn't an issue for me, if anything I'd say it's welcome as it doesn't overpower the fish.
These make a great compliment to my tinned fish rotation, which includes tuna, squid/octopus, sardines, cod liver, oysters, and sometimes sprats, salmon, and trout. The price is better than King Oscar, so I can have it more regularly without feeling like I'm being immoderate.
Would recommend.
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Reviewed in the United States on November 4, 2024
★★★★★ 5
nice big chunks of mackerel
some of the highest quality mackerel I've had. taste is amazing, 10/10 stars
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Reviewed in the United States on October 14, 2025
★★★★★ 4
Excellent quality, but close to expiry date
I am basically repeating what another reviewer said in 2024, that the quality of these mackerel fillets is excellent except the expiry date of the case I received is only 6 months away, whereas similar products are shipping with expiry dates 4 years away. And my review comes 2 years after the one in 2024, so apparently this has not changed. Otherwise, I would definitely have given 5 stars. Regardless, I went ahead and ordered more, because that is how tasty they are and selling at a good price.
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Reviewed in the United States on March 24, 2026
★★★★★ 5
Delicious, healthy lunches!
Really tasty mackerel. I concur with other reviewers, it's a healthy slab of fish I like to drop on a bed of crushed corn chips, fork-flake it and chow down. Better than just about any other off the shelf grocery store brand.
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Reviewed in the United States on September 28, 2025
★★★★★ 5
Snack time
Great healthy snack
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Reviewed in the United States on March 23, 2026
