It excels in power, capacity, and features, delivering exceptional performance across the board.

It excels in power, capacity, and features, delivering exceptional performance across the board.  Read Less

The app is pretty simple and straightforward and their tech support has been most helpful for an issue that has come up.

The app is pretty simple and straightforward and their tech support has been most helpful for an issue that has come up.  Read Less

Let me tell you, after a full 10-hour stretch, the f3800 had only dipped below half its battery life—still rocking a solid 55% charge.

Let me tell you, after a full 10-hour stretch, the f3800 had only dipped below half its battery life—still rocking a solid 55% charge.  Read Less

Last hour or so let it reach full charge 100% have also gone from 85% with ac input in less than 1 hour.

Last hour or so let it reach full charge 100% have also gone from 85% with ac input in less than 1 hour.  Read Less

This doubles my stored power for about $600.

This doubles my stored power for about $600.  Read Less

I paid a lot and they work well.

I paid a lot and they work well.  Read Less

Was delivered today which was faster than expected.

Was delivered today which was faster than expected.  Read Less

The f3800 arrived in tip-top shape, already juiced up to an impressive 82% right out of the box—a solid start, if you ask me.

The f3800 arrived in tip-top shape, already juiced up to an impressive 82% right out of the box—a solid start, if you ask me.  Read Less