Eneloop Panasonic BK-4MCCA10FA AAA 2100 Cycle Ni-MH Pre-Charged Rechargeable Batteries, 10-Battery Pack

Eneloops are some of the best rechargeable batteries ever made! If you want to make the intelligent choice, switch to rechargeables but don't choose a brand that makes other batteries, they have no interest in their rechargeables working well b/c they sell non-rechargeables as their main business. Hint: the 2 main battery manufacturers' rechargeables are pure TRASH in my opinion!Panasonic may make non-rechargeables but it's a small part of their market. I have AA Panasonic rechargeable batteries that are over 20 years old and still hold a charge. The Eneloops show similar quality and longevity.If you want to know one thing you can do that will save you money in the long run AND help the environment, move to rechargeables and choose Eneloop. But don't just take my word for it, public opinion agrees. These are a solid investment.

These Eneloops are built to last. The quality is excellent, and they’ve consistently outperformed other rechargeable brands I’ve used. Long-lasting charge, solid construction, and you can feel the difference. Panasonic knows what they’re doing—this is the kind of product you just set and forget because it works.Battery life:10/10

Why did you pick this product vs others?:I love the Eneloop rechargeable batteries and I have probably close to 100 of them in various sizes. They hold an excellent charge and have put lasted many other rechargeable batteries I have tried in the past.

Eneloop has been one of my go to's for a decade now. We previously purchased Eneloop batteries from a wholesale warehouse and it has lasted for over a decade. We purchased these for the battery life. We're hoping these will last just as long!

These are the best re-chargeable batteries you can find. They charge quickly and last long! Great value for the money compared to buying and replacing batteries all the time. Awesome product.

I exclusively use Eneloop AA's and AAA's for alkaline battery-powered devices around the house and always keep a bunch on hand. They last a good amount of time, charge pretty quickly with the quick charger, and I have not had to replace any of them yet in the past 7 years or so of using them.Definitely recommend, especially for your wallet and the environment!

I tested these on a decent Opus bt c3100. I didn't do the math, but they seemed to average about 790-820mah.I think I had one battery measure low, at around 780mah.I knocked a star off because apparently they're more like 150 cycles, not 2100:"That number (2100) is based on highly outdated protocols from 2011. In 2017, the protocol was changed to reflect real usage and that number dropped dramatically to 150. Look at the small print in the 4th Amazon slide....Can eneloop be charged up to 2,100 times?A: The estimated battery life (number of cycles) for eneloop was initially based on the test conditions specified in the IEC standard (IEC61951-2 2011, Section 7.5.4.1), suggesting up to 2,100 charging cycles. However, the IEC standard was revised in 2017 to more stringent test conditions that better reflect real-world usage. Under these updated conditions, the number of cycles is approximately 600. The actual longevity of the batteries also depends on usage patterns, as the discharge capacity gradually decreases with the number of charge cycles."Of note, higher in the Q&A, there's another entry about recharge cycles. In that one, it merely admitted that protocols have changed and the number is now less -- without mentioning the new number. Looks like they were still trying to be less than honest when they started writing the Q&A."IMO, a reputable, class-leading company, shouldn't lie or be deceitful like that.Also, in the past, I've had bad luck with Eneloop Pro AAAs.Overall it probably doesn't matter that much in real world use for me. I charge these maybe 1-2x per year, so whether they theoretically last 75 years, or 600 - I'm sure they'll deteriorate long before then.

I’ve been using the Eneloop rechargeables for years since getting them at Costco way long ago. These charged up quickly and went into five Panasonic cordless phone handsets and I anticipate no problems.