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Boltage

Power Banks

Power banks built for South African conditions, from pocket-sized 10 000 mAh units to 30 000 mAh packs that will run a laptop through four hours of load-shedding. Every model is held in stock in Johannesburg and couriered nationwide.

Choosing one comes down to two numbers. Capacity, in mAh, is how much charge the cells hold. Output, in watts, is how fast that charge moves. A 10 000 mAh power bank refills most phones once or twice and disappears into a jacket pocket. 20 000 mAh gives you roughly three phone charges, or a comfortable tablet top-up. Above that you are into laptop territory, and capacity alone will not get you there. You need at least 45 W of USB-C Power Delivery as well.

One thing worth knowing before you compare brands. No power bank delivers its full rated capacity, because stepping the voltage up to charge your phone costs roughly a third of it along the way. A genuine 20 000 mAh pack puts about 13 000 mAh into your device. Anyone promising six full charges from 20 000 mAh is quoting raw cell capacity and hoping you will not do the arithmetic.

If you fly, keep it under 27 000 mAh. Airlines cap lithium cells at 100 watt-hours in hand luggage, and anything larger needs written approval from the carrier.

Free delivery on orders over R750, 30 days to change your mind, and six months of cover if anything turns out to be faulty.

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