Adding a Second Lithium Battery Later
A lot of us start with one 100Ah LiFePO4 battery and figure we will add a second one down the road once…
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Installation and Wiring
A lithium bank is only as safe as the wiring around it. This section covers the physical build: cable sizing, fuse selection, busbars, battery monitors and shunts, disconnects, grounding and clean inverter wiring. We show where to mount batteries, how to crimp lugs that will not fail, and what makes a marine install different from an RV one. You will also find the common wiring mistakes that trip people up and simple ways to avoid them. Nothing here assumes you are an electrician, but everything is built to a standard you can trust with a big battery and a lot of stored energy. Read the pillar first, then the piece that matches the part you are wiring next.
Battery Terminal Torque: Why It Matters
A loose battery terminal is one of the quietest ways to ruin a lithium electrical system, and one of the easiest problems…
Inverter Wire Gauge Chart
Undersized cable is the single most common inverter wiring mistake I see in vans and RVs, and it quietly robs power, generates…
Do Parallel Lithium Batteries Balance?
If you have wired two or more LiFePO4 batteries in parallel, you have probably wondered whether they quietly even themselves out or…
ANL vs MRBF vs Class T Fuses
Not all fuses that fit the same size lug are created equal, and lithium battery banks push enough short-circuit current to expose…
Adding a Main Battery Disconnect
A main battery disconnect is the cheapest insurance policy you can add to a lithium system, and most people skip it. Here…
Wiring Batteries in Series vs Parallel
Wiring batteries in series bumps up voltage while parallel wiring bumps up amp hours, and mixing up the two is one of…
Battery Cable Sizing Made Simple
Undersized battery cable is one of the quietest ways to ruin a lithium upgrade, and most people do not find out until…
Busbars: Wiring a Clean 12V System
A busbar is the unglamorous part of a lithium system that quietly keeps everything from turning into a rat's nest of ring…