Which AA Rechargeable Battery is Best after 1 Year? Let's find out! Eneloop, Duracell, Amazon, EBL

It has been almost a

year

since the first video about double A

rechargeable

batteries. Since the first video, all brands have been put on these outdoor solar lights and have been allowed to charge and discharge more than 300 times, so the question If these double-A batteries are still any good or some brands are as good as new, we will also

find

out that I have some extra double-A batteries that have been sitting on a shelf for almost a

year

, we will do some tests with them to see how good they are . discharge occurred, so let's do the test under weight and see

which

brand is the

best

for testing batteries.

I am using the power x MH c 9000 Wizard 1 charger

which

can charge and discharge the batteries to ensure an accurate and fair test. The charger will charge all batteries. Dennis will allow each

battery

to rest for an hour, then discharge it, then rest for an hour and recharge again. This charger will report the discharge capacity at the end of each cycle. The whole process. It will take approximately 24 hours for each set of batteries, charging will be done at 500 milliamps and discharging at 500 milliamps during each of the tests, the batteries will be discharged at approximately 1 volt. I originally purchased four sets of batteries and three of the four sets were fully charged and then stored for future testing.

One of the four batteries was used in the solar night lights after it was almost used up and then charged again every day, it's time to test the condition of each of the batteries. Comparing the batteries to each other and to their own milliamp error capacity rating it will take almost 24 hours to get the results from our first set of batteries and the results are in and the rayovac with a 1350 milliamp rating produced 1267 which en At 94% of its rated capacity, Thunderbolt is supposed to produce 2,200 and delivered 2,085, which is 95% of its capacity. The Amazonbasics Black is designed for 1900 and was manufactured in 1879, which is 99% very impressive.

The Amazon Silver, which has a rated capacity of 2,400, was manufactured. 2337 which is 97% again very impressive for Amazon batteries so both Japanese made batteries beep and both Chinese brands let's see if the trend continues with our next set of batteries the energizer which is a Japanese manufacturing produced in 1919, which is 90. 6% of its 2000 rating, the EBL, which is made in China, is supposed to produce 2800 and only made 2392, which is only 85%, Panasonic's

eneloop

produced 1878, which is 99% of its rating, so it is tied for the lead with Amazon Black. impressively, the IKEA Ladda made 2388 which is 97% of their rating, once again all batteries made in Japan outperformed all batteries made in China.

The last two batteries to undergo a full year of testing are the Duracell and the Power X, both made in Japan. And now we have the results for our last two batteries, the Duracell, which has a nominal capacity of 2450, delivered two thousand four hundred and eighty-eight, which is a very impressive one hundred and two percent. The power came in first place, but power x e BL and ikea were not far behind these brands. own batteries with milliamp power capacity based on their own ratings, once again Duracell came out on top by delivering one hundred and two percent of their advertised rating,

amazon

basics black and Panasonic in loop did very well with 99% later in the video what we will see.

Do some testing on the batteries to better understand why the performance of some batteries seems to degrade more than others Now that we have tested the batteries that have been in use for the past year, let's go ahead and test the batteries that have been in place. a rack for last year before we start the one year test, let's take a quick look at the 42 day test 42 days after putting in the three sets of batteries and storing them, I tested one set of batteries from each brand and here are the Results after 42 days, the

battery

with the most energy was a tie between the IKEA Lada and the Duracell with the power % self-discharge rate per day. which is much better than the evl at almost double that rate with a loss of 0.3 2% per day on average over a 42 day span.

This can really add up, as you can see that the energized

amazon

basics black and

eneloop

only lost about 7% of their charge after 42 days, while the higher capacity batteries lost about 10% or even more, these batteries have They've been in storage for almost a year, so let's start testing and see how each of the brands performs. The radio vacuum cleaner starts with a voltage of 1.15. port freight also had an initial voltage of 1.15, blackened amazonbasics had better results than rayovac and port freight with an initial voltage of 1.1. Very impressive, the Amazon silver was not far behind at 1.18, so the black battery in the amazon basics remained in the lead. has been correct at 4 hours and the test results are in the rio vac which is rated at 1350 milliamp hours produced 1023 Harbor Freight Thunderbolt rated for 2200 only produced 1291 wow that's a lot of self discharge the black amazon basics rated by 1900 produced 1526 and takes the lead in highest milliamp capacity of the Harbor Freight Thunderbolt, the Amazon Silver with a rating of 2400 milliamp hours produced in 1864 and takes the lead from the Amazon basic silver, let's move on to our next 4 batteries, the energizer worked very well at one point an eight volt one, but the basic black from Amazon stayed in the lead with a nine volt one point.

EBL only started at one point one volt and that's the worst we've seen so far. The eneloop is on a six volt point that ikea made. the

best

so far, at one point two volts and takes the lead, another four hours have passed and the results are in with the Energizer which is rated at 2,000 and delivers 1,600 and the Amazon Silver holds on to the lead, double rated for 2800 only produced 1325, which is less than 50% of its rated capacity a loop that is ready for 1900 produced 1400 the ikea ladder that is ready for 2,450 moves into the lead with an impressive 2017 the Duracell also rated for 2,450 pairs lee falls short of the ikea with 2007 milliamp hours, the power year of storage.

There are a couple of ways to look at things when trying to determine which battery is best. The most expensive and highest capacity Japanese batteries, IKEA and Duracell, outperformed the competition by more than a hundred million wattages with respect to where the batteries are manufactured, the seven best performing batteries are made in Japan and the three with the worst performance are made in China, if you look. In the percentage of nominal capacity after sitting on a shelf for a year, once again, IKEA and Duracell came out on top with a very respectable 82 percent, most other brands were not far behind, ranging between 72 and 80 percent, which is still pretty good, however, two of the three brands that are made in China, Harbor Freight Thunderbolt and EBL, really seem to struggle at 59 and 47% respectively, as the charger Perixx does not have the ability to measure internal resistance.

I went ahead and bought. an Opus BT 3400 charger, so what is internal resistance? It is basically the opposition of current flow within the battery. A battery with low internal resistance can cope with high power spikes, such as an on-camera flash, better than a battery that has high internal resistance; First measure the internal resistance of the batteries that were unused on a shelf for a year and then we will measure the internal resistance of the batteries that were used in the

rechargeable

solar lights for the past year to see if the internal resistance changed over time by The way all batteries were fully charged before measuring their internal resistance, batteries that sit on the shelf for a year and only experienced a couple of charge and discharge cycles should have better internal resistance, the rayovac had an internal resistance of 82 milliamps, Harper Freight.

Thunderbolt is 57, amazonbasics black 72, amazonbasics silver 58 now let's test a set of batteries that were in the solar charged battery night lights for the past year: Frio vac has 215 million resistance to Harbor Freight Thunderbolt is at 192, amazonbasics black a lot better at 124 amazonbasics alerted even better at 112 let's move on to our next set of batteries first testing the batteries that had very little use the Energizer has 64 million resistance the EBL was one hundred and eight the internal loop 77 the IKEA ladder 63 after a year of use, Energizer was at 93 which is the best of all batteries so far, Eve Hill was at 232 which is the worst of all batteries so far, eneloop was at 78 which is now the best we have.

We have already seen that the boy did very well at 70 and now he is leading the way. Let's move on to our last set of batteries. Duracell started at 54 to power x-77. Half a year of use. Duracell is at 71, which is just. one milliohm behind the very impressive IKEA, the perixx performed excellently at 88, the Farda brand that is made in Germany and the active energy batteries that are made in China only went through about 8 months of testing, however, the Farda It had an internal resistance of one hundred and forty. for active power it was at 114, internal resistance is kind of like the blood pressure test for a battery, just like blood pressure, it can vary a bit, but it's a good indicator of battery health after almost a year of use, IKEA Duracell eneloop power The average finish of the three categories is taken into account, including the total milliamp hour capacity after almost a year of storage. milliamp hours after almost a year of daily use and finally internal resistance, the average Duracell finished in first place, well ahead of IKEA, the Amazon basics black and eneloop were almost tied with an average fourth place, the energizer in Amazon basic silver averaged v Once again, Chinese-made batteries finished in the bottom three positions.

If you are interested in seeing how much self-discharge occurs in nickel metal hydride batteries after two years, check back in another year. I still have one more set of batteries on a shelf. and I also plan to put some batteries back into these rechargeable lights and we will see how they perform after two years of service. All of my video ideas, including this one, come from viewers, so if there's a different type of drum kit you'd like me to try, I hope you'll take the time to leave a comment or if you have another unrelated video idea with the batteries, I would also like to hear that comment.

Thank you very much for watching the video, take care and I look forward to the next time.