Xantrex C 40 Charge Control works with wind or solar. Great for home made wind applications with the flexiblity of 12 24 or 48 volt adjustable setting. Works in Divert mode in C setting to make sure you batteries don't overcharge

This control has been the stand by of  alternative energy enthusiasts for years with wind and hydro systems

Xantrex Charge controller. Microprocessor controlled pulse width modulated 40 amp unit @ 12, 24, or 48 volts. Features adjustable set points, led status indicator, electronic over current protection, manual or automatic equalization and can function as a charge controller or DC load controller. An amazing amount of features for such a low price. Comes with a two year warranty 9" x 5" x 2" Weight 4 LBS.

Features

Silent, pulse width modulated (PWM), high efficiency operation

Three-stage battery charging (bulk, absorption, and float) with optional temperature compensation

Automatic overload protection in both active and passive modes

PV array short-circuit and reverse polarity protection

Durable construction

Microprocessor controlled

As a Solar Charge Controller

When used as a solar charge controller, the C40 can control 12, 24, or 48 Vdc array operation and

All units offer selectable settings for NiCad, flooded lead acid, gel, or absorbed glass mat batteries

As a DC Load Controller

As a DC load controller, the C Series has a low voltage disconnect warning indicator and field

adjustable set points that govern automatic low and high voltage disconnect

Manual reset switch for emergency low voltage operation

As a Diversion Controller

The C Series automatically directs extra power to a dedicated load, such as an electric water heater,

and ensures batteries are never over charged