These are the Ducks Nuts for the GoTo dobs and the likes, fellas }
12V 20Ah Lithium Battery LiFePO4 Rechargeable Deep Cycle BMS Solar Boat Camping,
They have the hex F2 bolt Terminals aswell
Dimensions - 185-L x 167-H x 82mm-W
Weighing in at 2.05Kg's
They have the options for the smaller 8Ah with the Spade terminals,,, 12Ah, the 20Ah and a 50Ah then onto the larger sizes -- some sizes currently Out-Of-Stock
https://www.ebay.com.au/itm/405887745566?itmmeta=01K21WYB8QNREW KYM308WP58DY&hash=item5e80cb7e1e:g: tSIAAeSwlfZokcmz