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Hi Jayson2

You can get away with a much more rudimentary battery charger - it's definitely NOT as good but it can be a lot cheaper

I charged my 44S Headway pack using a 230v - 110v transformer a full wave rectifier some capacitors and a JLD404 to switch it all off when it reached the target votlage

You could do something similar - but as you have 120v mains you would not need the step down transformer but you would need some resisters to ensure that the charging current was low enough

Not pretty - but it worked until I went to a higher voltage

Search for "Bad Boy Charger" - and you will find lots of suggestions
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