Xantrex Charge Controller for DC Charging Sources - 35 Amp, Model# C35

• 35 Amp
• Field configurable for 12 and 24 VDC operation
• Can be used as a charge, diversion or load controller
• Comes with a standard multi-color charge status LED
• Silent, pulse width modulated microprocessor control (maximizing battery life)

I bought this a little while ago but now I finally have it installed. It was exactly what I needed for my barn. It was easy to wire and the instruction manual solved all of the issues you could ever imagine. I had my led light in backwards and that was in the troubleshoot. Xantrex seems like a good company to deal with in my opinion. Right now I just have one 7 amp panel so I have plenty of room to grow with this. I can't wait to add on the digital display. and I will probably go with a xantrex inverter too.

Buy Xantrex Charge Controller for DC Charging Sources - 35 Amp, Model# C35 Now

The Xantrex C35 is the best charge controller I've ever had! My last controller was a Coleman Air C40, and it was working fine running a total of 25 watts of panels. Then I hooked up a 100 watt panel and the little dinky controller went crazy; constantly disconnecting the source and costing me precious power. I went ahead and bought the Xantrex C35 and it's MUCH better. Not only is it COMPLETELY solid state (the old controller had a dinky auto relay), but it has the 3 stage charging. That REALLY sped things up. I know from experience that other controllers either turn the source on or off, and only judge by the battery VOLTAGE. The C35 did a fabulous job of monitoring both voltage and amperage. The 3 stage charging has litterally changed the way it charges the battery. Plus, it includes the pulse-width modulation. What this does is send the power to the battery in high-voltage bursts (thousands per second). This "shocks" the plates and helps keep them clean from sulfate buildup. Then there's the equalization. I have mine set to auto, and it's working great, cleaning the battery bank for me about once a month.

I would love to get the remote meter on it ASAP!!

The other thing about this controller is how easy it is to change the pentometer settings. Litterally 4 screws and your in.

One thing they don't mention in the description is the auto-off at night. If you're using a PV array, it will automatically disconnect the array at night so NO electricity leaks back from the batteries (even with diodes installed). In the morning, as soon as it detects electricity from the panals, it will turn back on.

In conclusion, being able to control the current and voltage going into the battery really made me spring for this one. The durable construction and easy controls make it the best controller I've reviewed! I would recommend it to anyone starting with solar, wind, and hydro. If it's too small for you, there's the C40 and C60, which are almost identical.

Read Best Reviews of Xantrex Charge Controller for DC Charging Sources - 35 Amp, Model# C35 Here

The only drawback is no digital readout. there is one available for it but it nearly doubles the

price. A digital readout is not a necessity. A blinking light tells you the battery's general

state of charge and you can always check every thing with a volt meter.

The ability to adjust float and charge voltages, and a equalization mode (All important for

long-term battery health) make this controller an excellent buy

Want Xantrex Charge Controller for DC Charging Sources - 35 Amp, Model# C35 Discount?

I bought the c40 charge controller in August 2011 for use on a small solar system. It replaced a c35 that I had used for at least 10 years.

Since installing the new controller I have had minor but continuing problems with the batteries. At the end of the day when I would expect the voltage to be at about 12.6 it was usually 12.3 or 12.2. Finally, I got two digital voltmeters and used each to measure the voltage of the batteries at rest. The readings from each one were about 0.4 volts higher than the meter on the c40. When the battery is close to fully charged the voltage on the c40 meter is at the set point of the potentiometer in the c40. So it is not clear to me whether this means the charger was overcharging the batteries or charging them properly and simply reporting the voltage incorrectly.

All this is irrelevant to the point I want to make. I'd like to find out an answer to my question but as far as I can tell Xantrex doesn't even provide on-line support or even a FAQ sheet for this controller (or any other). In fact, it is not even clear from their website that they even sell this item.

If it weren't for this rather important deficiency in Xantrex's product service I'd give the charger four or five stars. But because of the apparent absence of any support I give it three or two.