Cellphone Tower power supply in a container by Sun-In-One

This project is used to power a cellphone tower and is mounted in a shipping container. Built by PKYS Customer SUN IN ONE from Wilmington DE it includes solar charge controllers that harvest power from 44 kW of solar and charge an 8000 amp hour 48 volt battery bank.
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Isolated vs Non-Isolated DC DC Charger?

We get asked the question all the time:  "Do we need an isolated or a non-isolated DC DC charger?"  This article explains the difference.
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Tax Free shipping to Florida Freight Forwarders


PKYS now collects sales tax for shipments going to Florida.  However if your ultimate destination is overseas and you are using a Florida Freight Forwarder then as long as you choose the right forwarder the shipment can be tax free
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