The Anker 621 Power Bank is a pocket-sized 5,000mAh battery with a Lightning connector built into its body. Flip the connector up, plug it straight into your iPhone and charging starts with no cable at all; when you are done, it folds back flush. Anker rates the output at up to 12W, and the connector is Apple MFi certified. It is made for iPhones that still use the Lightning port, meaning iPhone 14 and earlier, not iPhone 15 and later, which moved to USB-C.
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A built-in Lightning connector that folds away
The whole idea of the Anker 621 Power Bank is that there is no cable to carry. The connector sits at the top of the body: raise it, push it into the iPhone port, and battery and phone become one piece in your hand. Afterwards it tucks back inside, so it does not bend or snag in a pocket. Because the connector folds, Anker recommends holding phone and battery together while charging to keep the connection steady, and notes that cases thicker than 4.9 mm, such as the OtterBox Defender, stop the connector reaching the port.
Real capacity and what to expect
The rated capacity is 5,000mAh. Anker explains that the energy actually available to the phone is roughly 3,000 to 3,330mAh, because of voltage conversion and normal energy loss. Rather than a number of full charges, Anker states that the Anker 621 Power Bank adds up to 20 hours of video playback to an iPhone 14 Pro Max. Treat it as a top-up that carries you through the second half of a long day, not as a battery for several days away from a socket.
12W output and MFi certification
The Lightning connector delivers up to 12W (5V⎓2.4A), the top speed Lightning reaches from a standard charger without USB Power Delivery. MFi certification means Apple has approved the connector, so the iPhone does not show the accessory-not-supported warning that some cheap accessories trigger. Anker also builds in its ActiveShield temperature monitoring, which checks the heat and adjusts the output while the phone charges.
Recharging over USB-C
The battery itself recharges through a USB-C port at up to 15W (5V⎓3A), and a 60 cm charging cable is included. Anker points out that the Anker 621 Power Bank does not support pass-through charging: you cannot charge the iPhone from it while the battery is plugged into the wall. The practical routine is to charge it overnight with your other devices and drop it in your pocket in the morning.
Size and weight
Anker lists the dimensions as 7.7 × 3.68 × 2.5 cm and the weight as 98.5 g, lighter than most phones. It fits a trouser pocket or a small bag easily, which suits anyone who goes out without a bag and wants a small reserve for a long day at the office, at the airport or at a family gathering. With the connector folded there is nothing sticking out, so it can share a pocket with keys without damage to the plug.
Who This Is Not For
The Anker 621 Power Bank does not suit iPhone 15, iPhone 16 or iPhone 17 owners: those models use USB-C, and a Lightning connector will not fit. It is also not for anyone who needs more than roughly one charge, given the small capacity. It has no pass-through charging, does not work with cases thicker than 4.9 mm, and has no second output port for another device.
Ordering from Totot
Totot sells the Anker 621 Power Bank brand-new and genuine in its sealed box, backed by a 1-year warranty from Totot. Delivered across the UAE in up to 3 business days, free on orders from AED 300, with cash on delivery or instalments via Tabby and Tamara. Items that arrive defective or not as ordered can be returned within 14 days, and any shipping damage should be reported within 48 hours of delivery. Browse more in our Power Banks & Stations range, or see the official Anker 621 Power Bank (Built-In Lightning Connector) page.
Anker 621 Power Bank Specifications
- Model: Anker 621 Power Bank (Built-In Lightning Connector), A1645
- Capacity: 5,000mAh (about 3,000–3,330mAh usable, per Anker)
- Output: Lightning, up to 12W (5V⎓2.4A)
- Input: USB-C, up to 15W (5V⎓3A)
- Pass-through charging: Not supported
- Certification: Apple MFi
- Compatibility: iPhone 14, 13, 12 and earlier models with a Lightning port
- Dimensions: 7.7 × 3.68 × 2.5 cm
- Weight: 98.5 g
- Supported case thickness: Up to 4.9 mm
- In the box: Anker 621 Power Bank, 60 cm charging cable
- Colour: Black
- Warranty: 1-year warranty from Totot
Anker 621 Power Bank FAQ
Does the Anker 621 Power Bank work with iPhone 15 or iPhone 16?
No. Those models use a USB-C port, and the Anker 621 Power Bank has a Lightning connector.
How many times can it charge an iPhone?
Anker does not publish a number of full charges; it states up to 20 hours of extra video playback for an iPhone 14 Pro Max.
Can I charge my iPhone while the power bank is plugged in?
No. Anker says pass-through charging is not supported.
Do I need a cable to charge my iPhone?
No. The connector is built in; the included cable is only for recharging the battery.
How much does the Anker 621 Power Bank weigh?
98.5 g, according to Anker.
Is it genuine?
Yes. We sell the genuine Anker 621 Power Bank, brand-new in its sealed box.
How long does delivery take?
Up to 3 business days anywhere in the UAE, free on orders from AED 300; any current delivery fee for your order is shown at checkout.
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