Many people use Laptops and cheap GPS mouse (connected to USB), equipped with PC navigation software and electronic charts instead of dedicated chartplotter. It’s a quite good solution for route planning at home. Laptop display is also bigger and it’s considerable faster and more usable than cheap chartplotter.
But there is a problem with GPS. Using U$ 50 – 100 USB GPS mouse is easiest and cheapest way, but the USB wire is always on the way and GPS is not on ideal position. Luckily GPS makers like F-Tech heard that issue and developed solar-power wireless GPS. It doesn’t need batteries, wires, switching on/off. Its just sitting somewhere on the deck and sending positions via bluetooth. Sun is almost limitless power source on the sea, why not to use it? And it can still function in total darkness 20 hours, off the battery, fully charged.
F-Tech Solar GPS tech data: