Jackery Explorer 1000 Plus vs Jackery Explorer 300

“Good, since, since the Jackery is needed. Note, though, that the Jackery 300 is relatively low capacity. It'll only run a TV and router for (depending on the size of the TV) 2-3 hours.”

“The Jackery kit won't work, but not for the reason you stated. If you look at the technical specifications listed for the unit, it states that the AC outputs are 120V. You mentioned that the pump control box says it's 230V. So the Jackery kit won't be able to output the voltage to match what you need. You misunderstand how the breaker for you pump is set up/works. A double 20A breaker is designed to trip if the current passing through it exceeds 20A. Most US residential electrical services are split phase 240V supplies. That means you have 2 hot wires and a neutral wire entering your main electrical panel. The purpose of the double circuit breaker is to look at the current traveling though both hot wires to your 240V motor, and if one of them exceeds the breaker's rating (in this case 20A,) it disconnects power from both hot wires to the motor at the same time.”