Consumercarts

Consumercarts is reader-supported. Learn more

Anker 621 Magnetic Battery vs Nitecore NB10000 Gen 2: Comparison

Anker 621 Magnetic Battery vs Nitecore NB10000 Gen 2: the capacity mah difference

There is no decisive spec gap here. Capacity mah splits them by a margin most buyers will never feel, Anker 621 Magnetic Battery 5000 mAh against Nitecore NB10000 Gen 2 10000 mAh. Display type is not the same on both, No on the Anker 621 Magnetic Battery versus 4-LED battery indicator on the Nitecore NB10000 Gen 2. They differ on length too, 104.9 mm on the Anker 621 Magnetic Battery versus 98.0 mm on the Nitecore NB10000 Gen 2. Width is not the same on both, 66.5 mm on the Anker 621 Magnetic Battery versus 68.0 mm on the Nitecore NB10000 Gen 2. There is a split on thickness as well, 11.4 mm on the Anker 621 Magnetic Battery versus 22.0 mm on the Nitecore NB10000 Gen 2. They differ on dimensions too, 4.13 x 2.62 x 0.45 in on the Anker 621 Magnetic Battery versus 98 x 68 x 22mm on the Nitecore NB10000 Gen 2.

Anker 621 Magnetic Battery vs Nitecore NB10000 Gen 2: which one fits your build

The Anker 621 Magnetic Battery is the one to take for iPhone 12/13 series owners and ultra-compact magnetic backup power, though it is the wrong buy for iPhone 14 and later (undersized fit) and Android users. Buy the Nitecore NB10000 Gen 2 for ultralight and thru-hiking backpacking trips and trail runners carrying minimal gear, though it is not the pick for laptop or high-wattage device charging and multi-device simultaneous charging (only 2 ports). Our rating of the Nitecore NB10000 Gen 2 (8.3/10): the lightest well-built 10,000mAh bank we've found, purpose-built for ounce-counting hikers.

Frequently asked questions

Do the Anker 621 Magnetic Battery and Nitecore NB10000 Gen 2 differ on weight?

Yes. Weight reads 129 g on the Anker 621 Magnetic Battery versus 178 g on the Nitecore NB10000 Gen 2.

Is the Output Port Count the same on the Anker 621 Magnetic Battery and Nitecore NB10000 Gen 2?

It is. Both are listed at 1 ports, so it is not a reason to pick one over the other.

Specs and benchmarks

  • Brand

    Anker 621 Magnetic Battery
    Anker
    Nitecore NB10000 Gen 2
    Nitecore
  • Capacity mAh

    Anker 621 Magnetic Battery
    5000 mAh
    Nitecore NB10000 Gen 2
    10000 mAhBest
  • Output Port Count

    Anker 621 Magnetic Battery
    1 ports
    Nitecore NB10000 Gen 2
    1 ports
  • Recharge Input Power

    Anker 621 Magnetic Battery
    12W (USB-C 5V/2.4A)
    Nitecore NB10000 Gen 2
    USB-C 30W, empty-to-full in about 2 hours
  • Display Type

    Anker 621 Magnetic Battery
    No
    Nitecore NB10000 Gen 2
    4-LED battery indicator
  • Weight

    Anker 621 Magnetic Battery
    129 gBest
    Nitecore NB10000 Gen 2
    178 g
  • Length

    Anker 621 Magnetic Battery
    104.9 mm
    Nitecore NB10000 Gen 2
    98.0 mm
  • Width

    Anker 621 Magnetic Battery
    66.5 mm
    Nitecore NB10000 Gen 2
    68.0 mm
  • Thickness

    Anker 621 Magnetic Battery
    11.4 mm
    Nitecore NB10000 Gen 2
    22.0 mm
  • Dimensions

    Anker 621 Magnetic Battery
    4.13 x 2.62 x 0.45 in
    Nitecore NB10000 Gen 2
    98 x 68 x 22mm

    Which one should you pick?

    Choose Anker 621 Magnetic Battery if you already have it on hand or find it at a lower price.

    Choose Nitecore NB10000 Gen 2 if you already have it on hand or find it at a lower price.

    Price comparison

    RetailerAnker 621 Magnetic BatteryNitecore NB10000 Gen 2
    Anker Store

    $42.99

    View on Anker Store
    Nitecore StoreView on Nitecore Store

    Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.

    Verdict

    Nitecore NB10000 Gen 2

    8.3 / 10 Expert Rating

    The lightest well-built 10,000mAh bank we've found, purpose-built for ounce-counting hikers.

    More comparisons in Power Banks