Anker Earth Day Deals (up to £500 off) e.g. Anker PowerHouse 757 £1199 @ Anker

40,000mAh is 40Ah, but importantly, this is running at 51.2v, giving a far higher power output. Compared to a 22,500mAh (22.5Ah) portable battery bank which generally runs at 5v (probably 4.2v in reality), it's got significantly more capacity. The distinction is that you should be considering watt-hours, not amp-hours. A 22.5Ah portable power bank running at 5v has about 112 watts of storage capacity. This system has nearly 20 times that, so the same power as 10 of those 22.5Ah battery packs. Further, there are likely differences in measurements - the battery banks touted as having huge capacities (specifically, any above 20Ah) are straight outta China, and the actual capacity is almost always substantially lower than advertised. That's before we even get to the actual useable capacity. I think on average those battery banks tend to give you about 55% of their rated capacity as useable. I'd hope (although I can't be sure because I don't want to throw away £3k) that these Anker products deliver as advertised, and have a useable capacity at least close to that which is advertised. The lower voltage consumer-rated battery banks we see nowadays also typically use buck converters to step up the cell voltage from 4.2v to 5v for use in modern electronics - a highly inefficient process.


There's something immensely odd about how vehicle manufacturers, especially those who produce things for camper vans or electric vehicles, market their products using amp hours instead of watt hours. It makes very little sense unless they state the voltage, since the systems potential storage capacity is determined by both. (edited)

C'mon you'd have saved 10 gms off your carbon footprint. that is something.

This is green washing at its finest

I want the low prices, not the top ones.

Yes. It's just you that isn’t.

They can but they definitely shouldn't.

No, £500 off £1,699 (for example) with a £20 gift card as an added, albeit tiny, extra.