Home > AA Batteries > Panasonic BK-3HCCA4BA eneloop pro AA High Capacity Ni-MH Pre-Charged Rechargeable Batteries, 4 Pack, Black

Panasonic BK-3HCCA4BA eneloop pro AA High Capacity Ni-MH Pre-Charged Rechargeable Batteries

Nimh High Capacity Pre Charged Rechargeable Batteries, No Memory Effect Batteries

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What We Like

  • Ideal for battery-powered lanterns, cameras and other devices powered in the winter
  • The batteries can be recharged up to 2100 times that offers long-lasting performance
  • Pre-charged at the factory using solar power making it ready to use


  • Does not hold charge for long

Results of our analysis:

We analyzed 137,449 reviews for 106 products in the AA Batteries category.

We then analyzed 96 reviews for this product. None were recent.

Around 77% of reviews were positive and about 19% were negative.

Final Score:

8.74 out of 10, based on these factors:

  • Battery efficiency
  • Build quality
  • Overall performance
  • Packaging
  • Value for money
  • What buyers say about Panasonic BK-3HCCA4BA eneloop pro AA High Capacity Ni-MH Pre-Charged Rechargeable Batteries

    The following is an updated version of my original Sanyo eneloop FAQ, first published in may 2012

    The eneloop Pros and standard eneloop2100 use fourth Gen technology, which gives them a wide operating temp range, improved stability in output, slower self-discharge, and increased durability.

    I bought a La Crosse BC-500 to use in a car with solar cells, as it is the only La Crosse that can be used this way, with a 12 v plug included.

    The eneloop Pro battery is a descendant of the long-standing tradition of NiMH batteries that run circles around most of the competition.

    This battery is very good for low drain and high drain applications. It has a cycle life of over two years, which is four times that of the XX or Pro.

    Common Questions


    Is there a difference between SANYO's eneloop XX and Panasonic's eneloop pro?


    The only real change to the batteries is the number of charge cycles, the batteries are rated for up to 500, and the milliamp is 2550 versus 2500.


    This seems to be one of the highest capacity AA batteries out there. Are there any other NiMh AA's that have higher capacities?


    PowerGenix had a NiZn AA battery, but it still wasn't as good as the eneloop Pro / XX line.


    How long does it take to fully charge the batteries with the eastshine s2 charger?


    It depends on the average voltage for the battery within a single discharge and how long it will take.To go from 1.10 volts to 1.28 volts is close to a full charge, but it will take less than an hour.


    Is it possible to use my Energizer® Recharge® Value Charger with these batteries?


    The energizer charger will charge your batteries too high a rate and reduce the life and number of cycles of your batteries.


    If Ni-MH batteries are left in something without being used, are they hurt?


    You can charge them at any time, and there are some smart charger/analyzers out there that can drain your cells for you or better yet check the performance of your cells.

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