For those that dont quite grasp how useful they are...
I fit them to everything. The reason being it gives enormous flexibility. For e.g. theres one inside my van hidden inside the centre console. It allows my to start the van from my chair. And once started it allows the van to charge me chair very fast as I drive home. It also means I can conect a lithium charger and charge my van from the chair, or the chair from the van at high power. It also means I can charge my hobby stuff, planes, helis, etc from chair or van. And it means that if the van lights were left on while you were at a cinema or something, you can just plug in the chair. And start it. Theres another anderson under the front wheelarch... Why? Because I might want to charge my hobby stuff, and plug in the charger. Or use it to leave a maintainance charger connected over winter. And I do. It also means that if theres a power cut, my van is a generator. How? A 12v to 240V AC inverter. I have one in the luggage compartment just in case. That with an extention lead can run my house lights, freezer, electric bed, wheelchair chargers, etc.
Or allow me to use the AC vacuum cleaner outdoors in my van. Or run anything AC.
I Have Andersons on every wheelchair. Every power supply (4). My mower, my strimmer, my electric bed, several inverters, all my chargers and thats around 10 inc 2 hyperions, 4 PL8s, and various 12 and 24V marine, and 30A ones. And many other things besides. For e.g all my solar system, at each panel and as a higher voltage serial set, and battery backup. I have plenty of long cables too. Inc 12V and 24V series parallel adapter connectors and Y junctions.
Even a cordless drill. No more dead battery as you work. In fact no dead battery! It amazes me that theres so many things that can be connected, powered, charged, or run from vans, wheelchairs, etc.