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Anker 621 Magnetic Battery vs Nitecore NB10000 Gen 4: Comparison

Anker 621 Magnetic Battery vs Nitecore NB10000 Gen 4: the capacity mah difference

Expect a near tie. The closest thing to a difference is capacity mah, Anker 621 Magnetic Battery 5000 mAh against Nitecore NB10000 Gen 4 10000 mAh. There is a split on max output with all ports as well, 12W Max on the Anker 621 Magnetic Battery versus 15 W on the Nitecore NB10000 Gen 4. There is a split on output port count as well, 1 ports on the Anker 621 Magnetic Battery versus 2 ports on the Nitecore NB10000 Gen 4. They differ on usb-c port count too, 1 ports on the Anker 621 Magnetic Battery versus 2 ports on the Nitecore NB10000 Gen 4. They differ on recharge input power too, 12W on the Anker 621 Magnetic Battery versus 22.5 W on the Nitecore NB10000 Gen 4. Length is not the same on both, 104.9 mm on the Anker 621 Magnetic Battery versus 116.0 mm on the Nitecore NB10000 Gen 4. They differ on width too, 66.5 mm on the Anker 621 Magnetic Battery versus 46.8 mm on the Nitecore NB10000 Gen 4.

Which should you buy, Anker 621 Magnetic Battery or Nitecore NB10000 Gen 4?

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 4 for hikers and campers wanting waterproof protection and ultralight travel backup, though it is not the pick for laptop charging.

Frequently asked questions

Do the Anker 621 Magnetic Battery and Nitecore NB10000 Gen 4 differ on single port max output?

Yes. Single Port Max Output reads 12W on the Anker 621 Magnetic Battery versus 22.5 W on the Nitecore NB10000 Gen 4.

Is the AC Outlet the same on the Anker 621 Magnetic Battery and Nitecore NB10000 Gen 4?

It is. Both are listed at No, so it is not a reason to pick one over the other.

Anker

Anker 621 Magnetic Battery

$42.99

Anker Store

@ Anker Store ›

Nitecore

Nitecore NB10000 Gen 4

Anker

Anker 621 Magnetic Battery

$42.99

Anker Store

@ Anker Store ›

Nitecore

Nitecore NB10000 Gen 4

Specs and benchmarks

Show Only Differences

Brand
Anker 621 Magnetic Battery
Anker
Nitecore NB10000 Gen 4
Nitecore
Capacity mAh
Anker 621 Magnetic Battery
5000 mAh
Nitecore NB10000 Gen 4
10000 mAhBest
Single Port Max Output
Anker 621 Magnetic Battery
12W (USB-C, 5V/2.4A)
Nitecore NB10000 Gen 4
22.5 W
Max Output With All Ports
Anker 621 Magnetic Battery
12W Max
Nitecore NB10000 Gen 4
15 W
Output Port Count
Anker 621 Magnetic Battery
1 ports
Nitecore NB10000 Gen 4
2 ports
USB-C Port Count
Anker 621 Magnetic Battery
1 ports
Nitecore NB10000 Gen 4
2 ports
AC Outlet
Anker 621 Magnetic Battery
No
Nitecore NB10000 Gen 4
No
Built-in Cable
Anker 621 Magnetic Battery
No
Nitecore NB10000 Gen 4
No
Recharge Input Power
Anker 621 Magnetic Battery
12W (USB-C 5V/2.4A)
Nitecore NB10000 Gen 4
22.5 W
Weight
Anker 621 Magnetic Battery
129 gBest
Nitecore NB10000 Gen 4
143 g
Length
Anker 621 Magnetic Battery
104.9 mm
Nitecore NB10000 Gen 4
116.0 mm
Width
Anker 621 Magnetic Battery
66.5 mm
Nitecore NB10000 Gen 4
46.8 mm
Thickness
Anker 621 Magnetic Battery
11.4 mm
Nitecore NB10000 Gen 4
14.5 mm
Laptop Charging 60W+
Anker 621 Magnetic Battery
No
Nitecore NB10000 Gen 4
No
Dimensions
Anker 621 Magnetic Battery
4.13 x 2.62 x 0.45 in
Nitecore NB10000 Gen 4
116 x 46.8 x 14.5mm

Specification	Anker 621 Magnetic Battery	Nitecore NB10000 Gen 4
Brand	Anker	Nitecore
Capacity mAh	5000 mAh	10000 mAh
Single Port Max Output	12W (USB-C, 5V/2.4A)	22.5 W
Max Output With All Ports	12W Max	15 W
Output Port Count	1 ports	2 ports
USB-C Port Count	1 ports	2 ports
AC Outlet	No	No
Built-in Cable	No	No
Recharge Input Power	12W (USB-C 5V/2.4A)	22.5 W
Weight	129 g	143 g
Length	104.9 mm	116.0 mm
Width	66.5 mm	46.8 mm
Thickness	11.4 mm	14.5 mm
Laptop Charging 60W+	No	No
Dimensions	4.13 x 2.62 x 0.45 in	116 x 46.8 x 14.5mm

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 4 if you already have it on hand or find it at a lower price.

Price comparison

Retailer	Anker 621 Magnetic Battery	Nitecore NB10000 Gen 4
Anker Store	$42.99 View on Anker Store
Nitecore Store		View 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.