Installation Guide

Fig. 6.2.

Solar Connector Adapter Kit

The typical connection for 12V panels using a PWM Controller is a

parallel connection

This connection increases the current, but keeps the voltage level the same. When placing

multiple panels in parallel, it is necessary to size the wire gauge accordingly, and keep the

distance between the solar array and the controller as

close as possible

Long runs of cable between the panel(s) and the controller increase the line loss if the gauges

are not properly sized. We recommend keeping the distance between the solar array and the

controller as close as possible.

RENOGY

provides a gauge-sizing tool, available for no charge

at:www.renogy.com

Please refer to

Figure 6.3

. This figure shows the extending of the output wires of the

RNG-100D Solar Panel using the adapter kit. The polarity labeled on the panel’s leads should

be the only ones to follow. When adapting the leads, mark the

positive (+)

cable; doing so

will avoid reverse polarity when connecting the panel(s) to the controller.

CAUTION

When connecting a solar panel to the charge controller, please ensure that the correct type of

panel or panel array is used.

Adapter kits are sold in different lengths, and the basic gauge size is #12 AWG. Unassembled

solar connectors can also be purchased separately to make a custom adapter cable suitable

for different length specifications.

6.2 Information about solar panels and PWM Controllers

As we explained in the previous section,

RENOGY

Solar Panels are equipped with cables

terminated by solar connectors. To extend these cables,

RENOGY

provides adapter kits as

shown in

Figure 6.2

. Adapter kits can be found in Complete Solar Kits or sold as separate

components at www.renogy.com.

6.3 Extending the output wires of the solar panel

Please note the following about PWM Controllers:

12V panels should be used with 12V battery systems only

24V panels or 12V panels configured in series to make 24V should be used with 24V

battery systems only

The solar array should not max out the rated power of the controller. Failure to obey this

rule may result in the controller overheating or catching fire.