Best Portable Power Station for Sump Pump Backup (Tested Against Real Startup Surge)
🔍 Quick Answer A sump pump is one of the toughest loads you can put on a portable power station — not because it draws much continuously, but because of the startup surge. A 1/3 HP pump can spike to 1,300–2,900W for a split second when it kicks on, and a 1/2 HP pump can…










