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WIll's favorite chargers are here: https://www.mobile-solarpower.com/battery-chargers.html Since I haven't used any of the ones he recommends I'll leave it to someone else to add their experience. Also, realize that many of the All-In-One Inverter/Solar Charge controller units (like MPP and...

In addition to the conversion efficiency and self discharge issue, the Bluetti Kwh capacity assumes a resistive load with a power factor(PF) of 1.0. Likewise, the Kilowatt assumes this as well. To simplify, when the PF is not one, the current and voltage drawn by the device are slightly out...

The key thing here is the matching of the cells. Overcharging occurs because no two cells are alike. Assume you are charging in series, whichever cell has the lowest capacity will become fully charged first. Unless you then stop charging immediately, that cell will be overcharged. On series...

Series connected batteries will result in lower battery current at a given wattage meaning lower gauge wires that are cheaper. However, verify that the BMS you buy can handle the higher voltage. Parallel connected batteries will provide greater discharge current that may be required to run...

I need to qualify some things: Unless you are very experienced with residential and service entrance wiring you should not attempt such a project. Unless you are very familiar with your local electrical code you should not attempt such a project. Most Utilities have very strict "service...

The critical factor here is the DC input voltage of your inverter. A 0.5 Volt drop on a 48 volt system means you are losing about 1% of your stored Kwh. That same 0.5 Volt drop on a 12 volt system means your are losing almost 4% !! Over size wiring on 12 volt systems is usually a good idea...

Useful voltage drop calculator with a given wire gauge and current. This, in combination with a current carrying chart is essential for low voltage i.e. 12 volt builds which usually have very high currents. Choosing wire size based only on current carrying limits will often result in large...

The key question here is the way you want your system to work. The Generac switch is typically used with an OFFLINE generator that must be started in the event of a power failure. In this case, the house normally operates on grid power and switches to generator when the grid is lost. With your...

Basic electric safety: Don't work with line voltages (above 48 volts) ALONE. The other person can get help if you are incapacitated (heart stopped). Assume circuits are live until you measure them with a meter. When working with live line voltages use only one hand at a time (shocks between 2...