It's the standard Delta 3.
Not the pro as shown in the pic.
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They Costco is a very good price
Also if you're not fussed by having AC it makes quite a good self contained DC power system.If anyone has a Bluetti AC180 and wants to ramp it up to 2000Wh then the B80 extra battery is on sale on the Bluetti site.
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BLUETTI B80 Expansion Battery | 806Wh
Extra 806Wh battery for BLUETTI AC60Works as Standalone Power StationIncluding a 100W USB-C, a 12V/10A car output and a USB-A portsCampatible with AC60/AC180/EB3A/EB55/EB70Two Ways to Recharge: Wall Socket, Solar Chargingbluettipower.co.uk
They normally do, typically its 10% offSo I'm waiting to see if/when Fogstar do anything? Do they usually have a black Friday sale?
Not as crazy as £1.25 for a Mars Bar.500 notes for a battery is crazy money.....