Portable solar rechargeable power station
Looking at the supplied photographs I note the following and suggest;
The solar panel may benefit from a stronger reinforced frame and some form of face protection to prevent damage from any inadvertent falls or flying objects.
If the charge controller has the capacity them maybe a larger leisure battery to still fit within the foot plate area.
Provide a socket arrangement and separate power lead that may quick release in the event of snagging of the power cable.
For safer maneuverability and improved stability consider larger diameter and wider puncture proof wheel tyre combination
I would prefer to see more reinforcing / bracing of the welds on the frame and the tyres addressed
Fitting of an anti theft provision might be considered both to the battery and electronics and the unit as a whole appropriate to its theatre of operation.
This unit appears to be a quite adaptable renewable power source , it looks to be easy to transport and importantly due to its simple design easy to maintain and repair.
The nature of the design lends its self to quick deployment and require minimal training to set up and operate.
Uses , bearing in mind it utilises a leisure battery and has a good discharge capacity available,
it would be suitable for remote applications where a 12 volt or even short term operation of a solid state inverter to provide 240v can be supplied.
Operations such as electronic equipment recharging, phones / laptops/tablets .
Operation of radio communication and navigation equipment.
Powering of LED lighting , livestock control fencing,medical equipment.
Overall I like the concept.
As for the pricing depending on the targeted customer base and volume it could be brought down.
As a one off £500 is a little high bearing in mind now the design concept is now “out there” it can easily be replicated .
Its a simple design and that’s its strength .