Xantrex C40 Solar Charge Controller 40 Amps
Key features
- •Used to charge
- •Used for diversion or load controller
- •Features standard multi-color charge status
- •Quick and simple installation/setup
Xantrex C40 Solar Charge Controller 40 Amps
List Price: $187.68$168.91DEALYou Save: $18.77 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 23, 2026In Stock (36)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection
Customer Reviews
Reviews sourced from verified Amazon purchasers4.3
out of 5
Based on 10 reviews
5★
90%
4★
0%
3★
10%
2★
0%
1★
0%
Great bang for the buck.
MrPotatoHead•August 16, 2017
Out performs MPPT in my opinion. See the issue is not Maximizing power delivery when the day is sunny. This is what MPPT does. No the problem is efficiently using power when it is cloudy. Works better than MPPT then, in my opinion. Less around for rippers to jack is an added bonus.
Replacement unit solves charging problem
G.A.M. E.•February 22, 2017
Arrived promptly in good condition.
Would not work on off-grid flat batteries.
Worked once a fully charged battery was connected after which the remaining 3 batteries could be connected.
Red led flashing in charge control mode, should be green! Needs led pulling out, turning 180 degrees and plugging back in. Does not affect charging just gives misleading colour.
Connected to PV panels.
Would not work on off-grid flat batteries.
Worked once a fully charged battery was connected after which the remaining 3 batteries could be connected.
Red led flashing in charge control mode, should be green! Needs led pulling out, turning 180 degrees and plugging back in. Does not affect charging just gives misleading colour.
Connected to PV panels.
but they have a good performance, are easy to install and cheap
Amazon Customer•May 16, 2016
A 24 V, 1200 Amphours-Battery-System for a house on the Canary Islands with 3000 W solar power and 350 W wind power is served over years with 3 Xantrex (former Trace) C40 charge controllers and one MPP Morning Star charge controller. Within 14 years two Trace C40 sufferd a defect (you can't repair them), but they have a good performance, are easy to install and cheap.
Very good product!
SolarCoordinates•December 31, 2015
Well-built, survived a rain storm, 90-page instruction manual written by someone who actually speaks English.
It's not MPPT (those are more expensive), but it's still a great unit.
It's not MPPT (those are more expensive), but it's still a great unit.
Xantrex C40 as a charge controller for a DC power supply and 400 AH batteries
BR•November 9, 2015
With adequate current available from our charger, the C40 maintains battery charge to within a few tenths of a volt. The application is a battery back-up system on a remote ham radio repeater. We have two 200 AH batteries with charge current supplied by a 70 Amp DC supply. The D-Star repeater system is connected directly to the batteries. AC power for the computer and accessories is developed by a Xantrex sine-wave inverter, also connected to the batteries.
The C40 is set to bring the battery charge to 14.5 Volts and then allow it to float down to 13.5 Volts. These are the levels recommended by the battery manufacturer. As the manual says it should, the green LED indicator on the C40 flashes when battery voltage falls below the float level. The number of flashes in the sequence tells us where the C40 is in its charge sequence. When charging is complete, the LED is constantly on.
The C40 is set to bring the battery charge to 14.5 Volts and then allow it to float down to 13.5 Volts. These are the levels recommended by the battery manufacturer. As the manual says it should, the green LED indicator on the C40 flashes when battery voltage falls below the float level. The number of flashes in the sequence tells us where the C40 is in its charge sequence. When charging is complete, the LED is constantly on.
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