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Old 10-05-2013, 06:48 PM   #2 (permalink)
EcoModding Apprentice
Join Date: Oct 2009
Location: Jyvaskyla, Finland
Posts: 143

Golfwagen - '89 Volkswagen Golf mk2
90 day: 107.14 mpg (US)
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Yes, there is a 150V to 12V device. It is called DC/DC converter. Most people use DC/DC converters in their conversions. I use this product: 400W DC-DC Converter Isolated/Non-isolated_Hangzhou Tiecheng Information Technology Co., Ltd. and 4x 90Ah LFP cells (12V accessory battery). I had a lead battery once but after it went down for the first time I replaced it with lithium.

There should be plenty of different products to choose from.
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