Using other DC-DC converters

[RChadwick7]

While the Powerboost is a great item, you can use others if you're inclined and/or need more current. Over the years, I've collected a variety of DC-DC buck and boost units. Looking up the datasheet of the chip used, more often than not there is an ENABLE pin. Sometimes it's available as a pad on the board, and others it's buried. Even if it's buried, you can carefully lift the pin to get access to it (Don't bother cutting traces, you'll likely find hidden traces will waste a lot of your time. From my personal experience...)
The problem is most of these boards won't have a low voltage detector. They are usually SMT parts, but there are chips available that will allow a low shutdown detection.

[NeonHorizon]

Thats useful info thanks...