These are the best charge controllers on the market, they are solid, reliable and what we use for The Bimble Inn.

The FLEXmax family of charge controllers is the latest innovation in Maximum Power Point Tracking (MPPT) charge controllers from OutBack Power Technologies. The innovative FLEXmax MPPT software algorithm is both continuous and active, increasing your photovoltaic array power yield up to 30% compared to non-MPPT controllers. Thanks to active cooling and intelligent thermal management cooling, both FLEXmax charge controllers can operate at their full maximum current rating, 60 Amps or 80 Amps respectively, in ambient temperatures as high as 104°F (40°C).

Included in all of the FLEXmax Charge Controllers are the revolutionary features first developed by OutBack Power, including support for a wide range of nominal battery voltages and the ability to step-down a higher voltage solar array to recharge a lower voltage battery bank. A built-in, backlit 80 character display shows the current status and logged system performance data for the last 128 days at the touch of a button. The integrated OutBack network communications allows FLEXmax series Charge Controllers to be remotely programmed and monitored via a MATE system display and provides unrivaled system integration.

FLEXmax MPPT Charge Controllers are the only choice when you demand a high performance, efficient and versatile charge controller for your advanced power system.

A note on Outback and lithium:  Outback MPPT's can't be controlled by a Lithium battery BMS that needs comms, so you can't use e.g. Pylontech with them. But, you can set up certain charging profiles that are suitable for lithium batteries that have a dumb BMS that doesn't need communication. With Outback systems we sell and recommend Gcell batteries.

Using an Outback controller would invalidate any Pylon battery warranty, as the Pylons need to be able to control the charging voltage and current.