The main rating of a solar charge controller is its Output Current rating (in Amps), and this rating represents the maximum amount of current that the charge controller will be able to deliver at its output. However, when sizing a…
When sizing a solar charge controller, the main specification to consider is the Output Current rating of the charge controller. For example, a 10 Amp rating means that the maximum amount of current that the charge controller is capable of…
The main rating of a solar charge controller that you should consider is its Output Current rating. The Output Current rating or the “size” of the solar charge controller that you need for your 300w solar panel, will mainly depend…
The size of wire that you need to connect your solar components together will generally depend on 2 variables: The maximum amount of current (Amps) that will be flowing through the wire The length of the wire In this article,…
Watts (Power), Watt-hours (Energy), Amps (Current), Amp-hours (Charge), and Volts (Potential) are the units used to measure electricity, and they are often confused and ununderstood. After reading this quick article, you’ll learn about what these units represent in a battery,…
In this article, I explain how to correctly size the wires that you need to connect your solar panels to your charge controller. After reading this, you’ll learn about wire size and ampacity, wire insulation, electrical codes for sizing these…
Do I need a fuse between charge controller and battery? The answer is yes, you do need a fuse between your charge controller and battery bank. Should an overcurrent occur, you would want to have an overcurrent protection device (OCPD)…
The size of the fuse that you use between your battery and inverter will depend on: The amount of current (Amps) that you’d like the inverter to be able to pull from the battery. The amount of current that the…
There are 3 variables that determine how thick a battery wire should be: The maximum desired voltage drop, which should not exceed 3%. The thicker the cable, the more efficient it’s going to be. The maximum amount of current (in…
Undersizing your wires can lead to unwanted power and energy losses and potential safety risks. And, since copper wires are expensive, you also don’t want to oversize your wires too much. Below you’ll find a calculator that will help you…
