Of course the design is 20+ years old and the technology is barely 1980's; so you have to take it as it is. A new device being developed for THIS century will include an RF (better yet Bluetooth) base INSIDE the tiller, along with a lithium-ion battery that snaps into the tiller housing. Standalone with remote control - you can even use the phone app. I don't know why it hasn't been updated.
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