About

Everything on Startup Watts Notes is about Starting surge versus running watts: why motors and compressors briefly draw far more power than their label suggests, and what that means for inverters and backup batteries.

Facts on these pages come from published sources, such as makers' documentation, official pages and reference works, and each page links to the ones it used. Every page shows when it was last checked.

There are no ads here, and nothing is for sale.

What you read here is general information. Your own equipment's manual comes first, and where safety or the law calls for a qualified tradesperson, use one.