How much charge does 1,200 mAh actually add to a phone?

The pack holds 4.44Wh, and conversion losses mean a phone sees roughly 2.5 to 3Wh. That is about half a charge for a 4,000 to 5,000 mAh phone, or a few hours of screen time.

Will it fast-charge my phone?

No. Output is fixed at 5V/1A, about 5W, so most phones charge slowly and some show a slow-charging warning. It also recharges itself at 5V/1A over Micro USB.

Does it work with USB-C phones?

Only through a USB-A to USB-C cable you supply, and still at 5W. The included cable is USB-A to Micro USB, and the pack's own input port is Micro USB, so USB-C-only owners need a separate Micro USB cable to recharge it.

Is it worth it over a 5,000 mAh or 10,000 mAh pack?

Only if you need the lowest unit cost and the smallest size for branding. A 5,000 mAh pack costs more but delivers a full phone charge, and a 10,000 mAh pack covers two or more.

The power bank and a USB-A to Micro USB charging cable. No wall adapter and no pouch.

Where is the 100 Customized Span 1200 mAh Power Bank cheapest?

At allbranded.com, for $4.22, as of our latest check.

Where can I buy the 100 Customized Span 1200 mAh Power Bank?

5 stores we checked sell it, including allbranded.com, Everything Promo, EverythingBranded USA, RELYmedia, AmberPromos - Custom Printed Products.

100 Customized Span 1200 mAh Power Bank

Q: When is the price lowest?

Bulk and custom-print orders carry per-unit pricing, and the current best new price is $4.22 at allbranded.com as of November 5, 2026, below the $5.08 list price. Compare all 4 stores before ordering a large run.

Best price now

$4.22at allbranded.comObserved at 8:53 AM

Compared across 4 stores. Prices are checked against each store and labelled with when.

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Our take on the 100 Customized Span 1200 mAh Power Bank

The Span is a 1,200 mAh (4.44Wh) single-cell lithium-ion power bank built as a branded giveaway item. It charges over Micro USB at 5V/1A and outputs 5V/1A through one USB-A port, so it tops up a phone slowly and only partially. It weighs 63 g and has a key ring, so it rides on a bag or keys. The best new price is $4.22 at allbranded.com as of November 5, 2026, against a listed $5.08 per unit, with 4 stores pricing it new.