Panasonic Eneloop AA 16-Pk 2000mAh
Panasonic Eneloop BK-3MCCA16BA
AA-16 PACK 2000mAh
1.2 Volts Rechargeable Nickel-Metal Hydride (Ni-Mh)

Standard Pricing
USUALLY SHIPS SAME DAY when ordered by 1:30pm MST

eneloopeneloop Ni-MH "Low Self Discharge" batteries utilize Panasonic's advanced rechargeable battery technology allowing them to be recharged up to 2100 times2.

eneloop battery cells deliver consistent power performance, maintain 70% of their charge for up to 5 yearss1, come pre-charged by solar power (at the factory)3 and are ready to use out of the package. These eneloop cells also have increased storage life and extreme temperature performance down to -4 Fahrenheit.4

  • eneloop Ni-MH 2000mAh typical /1900mAh minimum (AA)1
  • 800mAh typical / 750mAh minimum (AAA)1
  • Hold up to 70% of their charge after 5 years of non-use1
  • Can be recharged up to 2100 times2
  • Pre-charged at the factory using power generated from solar energy and ready to use right out of the package3
  • Work in extreme temperatures down to -4 F4
  • Batteries can be recharged when fully, or partially drained
  • Ni-MH, Low Self Discharge rechargeable batteries
ManufacturerPanasonic Eneloop
Part NumberBK-3MCCA16BA
BrandPanasonic Eneloop
2000mAh (2.00Ah)
ChemistryRechargeable Nickel-Metal Hydride (Ni-Mh)
CategoryNiMH Batteries

Incredibly Long Storage Life

eneloop 2100 cycle rechargeable Ni-MH batteries maintain 70% of their charge for up to 5 years1 when not in use.


What Makes eneloop so Incredible

What makes eneloop so incredibleeneloop batteries utilize a highly-durable super lattice alloy which prolongs the life of this important material. Improvements to this super-lattice alloy have increased hydrogen stability resulting in reduced self-discharge and long lasting, stable voltage output.

Improvements to the conductive surface layer of the active (positive) electrode material (made primarily from nickel-metal hydride) produce greater conductivity and durability. By limiting the degradation of the conductive layer, it has been possible to reduce performance degradation during repeated use and thus increase the number of times that eneloop batteries can be recharged - all without increasing the amount of negative electrode alloy used.

What Makes Eneloop Incredible

A strong, thin outer casing also provides improved internal cell space efficiency of the eneloop battery design. This battery shell optimizes the balance of the components and when combined with the improved alloy material and conductive surface layer of the positive electrode active material enables the new eneloop cells to be recharged up to 2100 times.

Keep Your Devices Powered in "Extreme" Cold Weather

Keep your tactical flashlights, walkie-talkie radios, battery powered lanterns, cameras and other devices powered in the winter. eneloop 2100 cycle and eneloop pro batteries deliver exceptional performance at extreme low temperatures, down to -4 F4


eneloop = Lower Cost of Ownership

eneloop offers a lower cost of ownership saving, as much as $1000 per cell vs. regular Alkaline batteries. Each eneloop cell can cost less than 4 cents per recharge.


*eneloop Recharge Cost Assumptions and Calculations
0.144 Kilowatts @ 8 hours
4 eneloop AA --- 2100 recharges
2100 cycles x 8 hours changing time = 16,800 hours of AC power
0.144 KW x 16,800 hours = 2,419.20 KWH
2,419.20 KWH x $0.12 = $290.30
Initial Product Cost = MQN064 (4AA + charger) @ $29.99 MSRP; Charger $14.99, total battery at $3.75/cell
TOTAL COST OF PRODUCT and RECHARGING = $290.30 + $29.99 = $320.29
TOTAL NUMBER OF RECHARGE CYCLES = (4 batteries x 2100 each) = 8400 recharges
COST PER RECHARGE = ($320.29/8400) = $0.038 (.038 cents PER RECHARGE)
NOTE: Cost of electricity is based on 2013 US average energy costs @ $0.12 per KWH (as calculated by US Engery Information Administration).

Since alkaline cells are non-rechargeable, they must be discarded and then replaced. eneloop batteries deliver best-in-class Ni-MH high capacity power and "rechargeability" combination up to 2100 times. Devices including cameras flash units and wireless game controllers can easily draw more than 1000mA of current; rapidly depleting alkaline batteries power. eneloop batteries maintain a consistently high voltage level keeping your devices operating for a long period of time. When you use eneloop Ni-MH rechargeable batteries, you will realize that "1.2V" can indeed be better than "1.5V".

Image discharge

Why are Alkaline Batteries 1.5V?

AlkalineBatteryRegular disposable AA and AAA batteries are considered Primary Cells, more widely recognized as conventional "alkaline" batteries. There are two electrodes inside each cell; one is made of Zinc, known as the anode (the negative terminal) and the other is made of Manganese Dioxide, known as the cathode (the positive terminal). The electrodes are surrounded by an alkaline electrolyte, the chemical from which alkaline batteries get their name.

Battery chemistry of an alkaline battery generates 1.5V. As the chemical reaction fades, so does the power of the alkaline battery cell. This is why the voltage from alkaline batteries drops off shortly after the battery is put into use and the power continues to fade over time.

Why are Ni-MH Batteries 1.2V?

RechargeableBatteryNi-MH rechargeable batteries have two electrodes inside the cell: Nickel Hydroxide and Hydrogen absorbing alloy. Battery chemistry of a Ni-MH rechargeable battery generates 1.2V. While alkaline batteries experience rapid drops in voltage Ni-MH rechargeable batteries maintain the same voltage throughout most of the entire charge.

The chemical makeup of Ni-MH batteries allows the cell to be recharged at any time without having to be fully discharged.

eneloop batteries have continued to raise the performance bar in Ni-MH rechargeable technology. They have increased "low self-discharge" performance on Ni-MH rechargeable batteries which allows eneloop cells to store power for longer periods of time.

eneloop...The Birth of a New Technology

BirthTechnologySince 1931 Panasonic has been a leading manufacturer of battery technology. In 2005 eneloop was launched as a new type of rechargeable battery that would literally change the way people live, work and play. This rechargeable battery was created with a very simple idea in mind: provide a common energy source that can be reused over and over again. This "looping energy" became eneloop. Today, eneloop battery cells are recognized by millions of consumers worldwide as the industry's premier rechargeable battery.

eneloop's "signature features" include ready to use rechargeable power with the ability to hold 70% of their charge for up to 5 years (when not in use)1, can be recharged up to 2100 times2, they have no "memory effect" and outstanding performance even in extremely low temperatures (down to -4 F)4.

Americans deposit up to 6 billion disposable batteries into landfills each year! eneloop batteries can be recharged up to 2100 times, which means that the purchase and use of a single eneloop cell can keep hundreds of batteries from entering landfills. They can also be recycled free of charge at any of the 34,000+ recycling centers near you.


1 Based on IEC 61951-2(7.3.2).
2 Battery life based on testing method established by IEC 61951-2( Results may vary based on conditions of use. 
3 As certified by The Green Energy Certification Center
4 Storage at 20 (68F) ambient conditions (Discharge: .2lt) (varies according to conditions of use). eneloop batteries need a charger to be recharged. Panasonic Ni-MH battery charger recommended.