How to crimp battery cable properly comes down to matched lugs, the right die and correct torque, according to NEC section 110.14, the ABYC E-11 marine wiring standard and crimp tool makers’ instructions. A battery bank can push hundreds of amps, so a solid crimp keeps that current flowing cool. Here’s the full process, plus […]
Solar panel specs printed on the back of every module tell you how much voltage and current it makes and how those numbers shift with heat and cold, and NEC sections 690.7 and 690.8 use them to set safe string voltage and wire sizes. Read them correctly and your charge controller or inverter stays within […]
LiFePO4 vs lithium ion is a slightly misleading match-up, because LiFePO4 (lithium iron phosphate, or LFP) is itself a lithium-ion chemistry, and manufacturer datasheets show it trading some energy density for higher thermal stability and longer cycle ratings than the NMC and NCA cells used in phones, laptops and many EVs. For solar, RV and […]
Electrical terms like Voc, C-rate and split phase come up again and again when you shop for solar panels, batteries and inverters, and this glossary defines them the way the U.S. Department of Energy and the National Electrical Code use them. Bookmark it and come back whenever a spec sheet stops making sense. Each term […]
VA vs watts confuses a lot of inverter and UPS buyers, and inverter datasheets such as Victron Energy’s list both because they measure different limits: watts are real power that does work, while volt-amperes are apparent power, simply volts times amps. The ratio between them is the power factor. Here’s how to use both numbers […]
Electrical safety on a DIY solar or battery project starts with de-energizing, locking out and testing before you touch anything, the core practice in OSHA’s electrical standards, with solar panels and batteries adding a twist: you often can’t simply turn the power off. Panels make voltage whenever light hits them, and batteries can deliver thousands […]
MPPT vs PWM is the first choice you make on any battery-based solar system, and charge controller manuals from makers such as Victron Energy explain the difference: a PWM controller connects the panel straight to the battery, while an MPPT controller is a DC-DC converter that runs the panel at its best voltage and turns […]
AC instead of DC became the standard for homes because transformers made it cheap to change voltage, and high voltage is what makes long-distance power lines practical, according to the U.S. Department of Energy’s “War of the Currents” history and the demonstration in the ElectroBOOM video embedded below. That history explains why your outlets are […]
GFCI vs AFCI comes down to what each device watches for: a GFCI protects people from shock, and an AFCI protects the building from fires started by arcing wires, as defined in National Electrical Code sections 210.8 and 210.12. They aren’t interchangeable, and many US homes now need both on the same circuit. Electrical work […]
Neutral wire vs ground wire is one of the most confusing topics in home wiring, because the two connect at the same place in the main panel, yet National Electrical Code Article 250 gives them very different jobs. The neutral carries current back to the source every time something runs. The ground carries current only […]
