Anytime you are wanting to put a project together like this on any level… you need batteries. 12 Volt wheelchair batteries are perfect as you place them in any position AND because they are 12 volt; they are compatible with automotive things like lights and LED strips.
I have tried batteries from all over and have found this supplier to be awesome. SUPER fast deliveries and the batteries last.
The 3 Main Power supplies I get are:
I have a total of 9 of these batteries powering all my toys on the wheelchair.