IPNZ logo
Phone Us
telephone icon
Go to content
Products > Charge Controllers

Charge Controllers
goldline
A charge controller is used to keep the voltage across the battery within acceptable limits.  The charge controller automatically regulates, stops, or diverts power when batteries become fully charged.   Charge controller capacities range from 4 A to 100 A and multiple charge controllers can be used in parallel for larger systems. Some charge controllers offer additional features including charge status display, data logging, automatic equalisation charging, generator starting, and even lighting control.

The simplest charge controllers disconnect the power source (solar) when the battery reaches a set voltage, and turn it on when a low voltage set point is reached.  

Pulse Width Modulated (PWM) charge controllers turn on and off very rapidly, maintaining the batteries at full charge voltage, which results in quicker and more complete battery charging.  

Maximum Power Point Tracking (MPPT) charge controllers optimize the voltage of the PV array to maximise total power output then convert that to the correct voltage to charge the battery bank.  This process significantly increases the power from a solar array, particularly in low temperatures when battery voltage is significantly below the PV array voltage.  Most MPPT charge controllers work with higher array voltages, which can greatly reduce the required wire size between the array and the charge controller.  Whole more expensive than PWM controllers, MPPT charge controllers can boost system performance by up to 30% making them very cost effective.

MPPT Charge Controllers

The table below shows our selection of MPPT Charge Controllers. Click through on the model number for more in-depth detail.
Please make use of the free on-line String Sizing Apps to calculate solar array sizing.   
MPPT Charge Controllers at a Glance
Model
Max Output Current
Maximum Recommended PV Array Size (Watts)
Max PV Array Voltage (Voc)
12 VDC
24 VDC
48 VDC
96 A @ 12 VDC
94 A @ 24 VDC
86 A @ 48 VDC
150 VDC
79 A @ 12 VDC
78 A @ 24 VDC
76 A @ 48 VDC

200 VDC
61 A @ 12 VDC
62 A @ 24 VDC
55 A @ 48 VDC
250 VDC
30 A @ 12 VDC
30 A @ 24 VDC
30 A @ 48 VDC

150 VDC
60 A
150 VDC
80 A
150 VDC
100 A
300 VDC
25 A
350
700
-
120 VDC
40 A
550
1100
-
120 VDC
30 A
400
800
1600
150 VDC
45 A
600
1200
2400
150 VDC
60 A
800
1600
3200
150 VDC
60 A
800
1600
3200
150 VDC
60 A
600 VDC
20 A
300
600
-
120 VDC
30 A
400
800
-
120 VDC
40 A
560
1120
-
120 VDC
100 A
200 VDC
15 A
200
400
-
100 VDC
30 A
440
880
-
100 VDC
50 A
700
1400
-
100 VDC
45 A
650
1300
2600
150 VDC
60 A
860
1720
3440
150 VDC
goldline

PWM Charge Controllers

The table below shows our selection of PWM Charge Controllers. Click through on the model number for more in-depth detail.

It is important to note that PWM charge controllers have limited voltage correction capabilities and should only be used with 36 or 72 cell modules in series or parallel to match the battery voltage.
goldline

Charge Controller Accessories

Please click on the links to look at accessories for MPPT and PWM Charge Controllers

goldline
Back to content