Monocrystalline solar panels although rated at 12 volts in fact produce between 16 and 20 volts. The reason for this is that if a panel was designed to produce 12 volts. They would do so only under perfect conditions, such as when cool and exposed to full light. Solar panels need to provide usable voltage in low light conditions and high temperatures. A fully charged battery is around 12.7 volts when not under load and around 13.7 when being charged. Solar panels need to be able to give at least this amount of voltage in order to perform their duty.

Our charge controllers use PWM, this stands for pulse width modulation. This is an excellent method of float charging your batteries. Instead of a constant charge being sent to your batteries from the charge regulator, it gives out short charging pulses. The charge regulator is constantly checking the state of charge of the battery. This allows the charge regulator to determine the frequency of the pulses it is sending. For example; in a fully charged battery, with no load, the charge regulator will send a charge to your battery every few seconds. This is called the floating charge. In a battery that is not fully charged the pulses will be longer or continuous. Between pulses the charge regulator senses your batteries state of charge and adjusts the frequency of the next pulse. PWM is an excellent method of charging your batteries.

12A 12V Solar Power Charge Controller Regulator	Outback Flexmax 60 Regulator
24A Solar Power Charge Controller Regulator Current Charger	Display digital Xantrex for C40/C60 charge regulators
40A Solar Power Charge Controller Regulator
Xantrex C40 and C60 charge controllers

Price: Xantrex C40 180 € & Xantrex C60 200€

Xantrex C40 & C60 Charge Controllers

Xantrex displays are available to purchase for 125 Euros

Xantrex , C40, C60 Charge Controllers

Xantrex Amp Solar Charge Controller may be used for a charge controller or a diversion controller  but may be only used for one of those functions at a time.

All three of these fully solid state, microprocessor-driven controllers are UL and CUL listed. Whatever the charging source, a C Series controller is sure to meet your DC contro

ller needs.

Features:

Ensures your batteries are always charged Silent, pulse width modulated microprocessor control (maximizing battery life) Field adjustable voltage and battery set points Electronic protection against short-circuit, overload, over temperature and reverse polarity conditions.

Specifications

Optional Accessories:

• CM: Cumulative amp hour meter

• CM/R: Remote cumulative amp hour meter (available in 50 or 100 foot lengths)

• BTS: Battery Temperature Sensor

Temperature Compensation

BTS/15 or BTS/35 Monitors battery temperature and adjusts charging voltage for maximum performance. A 15 ft. (4.5 m) or 35 ft. (11 m) cable with standard telephone type connectors is included.

Xantrex Digital Meter

This is a  digital meter for Xantrex C35, C40, and C60 charge controllers.

CM, CMR/50, CMR/100-A back-lit meter which continuously displays: battery voltage, DC amperage, cumulative amp hours and amp hours since last reset. CM mounts on front of C Series, C35, C40 and C60, charge controllers. The remote meters CMR/50 and CMR/100 use simple telephone type plug-in connectors. 50 ft. (15 m) or 100 ft. (30 m) cable included. If used with a wind turbine, this will only measure voltage.

Xantrex Remote Display (CMR)

The same as the Digital meter but ships with a matching length 100' of cable

Xantrex BTS Battery Temperature Sensor

Xantrex Battery Temperature Sensor (BTS) comes in a 15 ft. (4.5 m) or 35 ft. (11 m) cable with standard telephone type connectors is included and is designed for use with DR and UX Inverters and C Series Charge Controllers. The BTS mounts on a terminal post of a battery in a bank or on the side of a battery and measures its temperature. It sends precise information to the charger or charge controller, which automatically adjusts voltage to ensure full battery charge depending on the ambient temperature of your battery installation. 

Xantrex C60 - 200 Euros including IVA

Xantrex C40 - 180 Euros including IVA

User guide Xantrex C40 C60

Designed for use with C Series Charge Controller

Xantrex CM user guide

he Outback FM60 and FM80 Flexmax - Maximum Power Point Tracking (MPPT) solar charge controller enables your PV system to achieve its highest possible performance. The MPPT feature can give you up to 30% more power each day from your PV Panels!

Rated for up to 60 amps / 80 amps of DC output current, the OutBack FLEXmax can be used with battery systems from 12 to 60 vdc with a PV open circuit voltage as high as 150 voc (maximum). The FM60's setpoints are fully adjustable to allow use with virtually any battery type, chemistry, and charging profile.

The OutBack FLEXmax allows you to use a higher output voltage PV array (up to max 150VDC) with a lower battery voltage - such as charging a 24 vdc battery with a 48 vdc PV array. This greatly reduces wire size and power loss from the PV array to the battery location while maximizing the performance of you system and saving you money!

The OutBack FM60 comes standard with an easy to use and understand display. The four line, 80 character, backlit LCD display is used for programming and monitoring of the system's operation including built-in Data Logging with 64 days of memory.

Outback FLEXmax users manual

Outback Flexmax spec sheet