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These Lead Carbon Batteries are being hyped up over here in Scotland as likely to replace FLA batteries in the near future and give Lithium some serious competition going forward. They are also only supplied as sealed units as I understand it.

I'd be interested to understand the head and flow and other characteristics of your pico-hydro scheme? Thanks

Hi, I have 3 such switches in my off grid home in Scotland which are activated progressively when the frequency in the local house grid rises above 50.25hZ. These are made by Amber Switches and are marketed here http://www.windandsun.co.uk/products/Shop-By-Brand/Amber-Control However two of the...