Samuel Zetterlund

Samuel Zetterlund

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Samuel Zetterlund
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I have bunch of old power adapters (those with transformers) and some laptop power supplys that are around 16-20v but i needed 12v for charging lead acid batteries. Since 12v lead acids charge at around 14.4v i had to lower voltage from 16v (we in case with laptop charger from 19v) down to 14.4v to charge lead acid battery. Easiest way to drop down voltage is to use cheap ebay step down converters. They are really cheap 1-3€ and work really good and max current is 3A which is enough for ...

I have bunch of old power adapters (those with transformers) and some laptop power supplys that are around but i needed for charging lead acid batteries.

15 Extremely Easy DIY Wall Art Ideas For The Non Skilled DIYers

A new handy collection of 15 Extremely Easy DIY Wall Art Ideas For The Non-Skilled DIYers with creative ideas for anyone.