2026 Energy Node Blueprint

Engineering Schematic

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Component Specifications

⚡ DC-DC Charger

Rating60A · 12V

ProfileLiFePO4

Bulk14.4V

Float13.6V

Ignition SenseRequired

Budget OptionRenogy DCC50S

🔋 House Bank

Configuration2 × 100Ah Parallel

ChemistryLiFePO4

Total Capacity200Ah · 2.56 kWh

Cycle Life3000-5000

Usable DoD~80% (160Ah usable)

Budget OptionRedodo / LiTime 100Ah

🔌 Inverter

Rated Output2000W Cont.

Peak4000W (5 sec)

WaveformPure Sine

AC Output120VAC · 60Hz

Idle Draw< 1.5A @ 12V

Budget OptionGiandel / Renogy 2000W

🧠 Alternator / Starter

Alternator180A OEM

Charge Voltage14.2-14.4V

Starter Battery12V · 70Ah · AGM

IsolationDC-DC Separates

Critical NoteNever Drain Starter

⚙️ Distribution Bus

Positive Bar250A · 4-8 Studs

Ground Bar250A · Matched

Master Fuse200A ANL

Branch Fuses5-30A Blade

Budget OptionBlue Sea 5024 / 2311

🛡️ Safety Additions

Battery Shut-Off300A Rotary

Shunt (monitoring)500A w/ BT

Smoke/CO AlarmIn Cabin

Thermal CutoffIn BMS

ExtinguisherClass B/C, 2lb

Wire Gauge & Fuse Schedule

Circuit	From → To	Gauge	Max Current	Fuse Size	Length Est.
Primary Input	Starter Battery → DC-DC Charger (+)	0AWG	200A	200A ANL (F1)	3–5 ft
Alternator Tap	Alternator → DC-DC Charger (+)	2AWG	180A	200A MIDI (F2)	4–6 ft
Charging Out	DC-DC Out+ → House Bank (+)	2AWG	60A	80A MIDI (F3)	3–6 ft
House → Bus	Bank (+) → Distribution Bus	0AWG	250A	200A ANL (F4)	2 ft
Inverter Feed	Bus → Inverter (+)	0AWG	200A	250A ANL (F5)	2 ft
Fridge Branch	Bus → 12V Fridge	10AWG	15A	20A Blade	6–10 ft
Lights / USB	Bus → Lighting / USB Ports	12AWG	10A	10–15A Blade	varies
Ham Radio	Bus → Mobile Ham Rig	10AWG	25A TX peak	30A Blade	6–8 ft
Starlink / Electronics	Bus → 12V Barrel or USB-C PD	12AWG	6A	10A Blade	4–8 ft
System Ground	Chassis Ground Strap	0AWG	—	None (Ground)	<2 ft

Recommended Build Order

Disconnect starter battery. Confirm no live circuits.
Mount DC-DC charger and house batteries FIRST. Measure cable runs before cutting.
Install main battery shut-off within 7 inches of the house bank positive — code requirement on most jurisdictions.
Run 0AWG / 2AWG main cables before smaller branches — harder to route after everything is installed.
All fuses go within 18 inches of the battery positive they protect.
Ground the inverter chassis AND the battery negative bus bar to a clean chassis point.
Commission: connect starter last. Verify alternator charging ramps up with ignition.
Log baseline voltages (float, bulk, load) and add to your kit binder.

⚠ Critical Safety Warnings

LITHIUM FIRE RISK: LiFePO4 is the safest lithium chemistry, but BMS protection is still essential. Verify overcharge, overdischarge, short-circuit, and thermal cutoff are enabled on every battery before installation.

DC ARC FLASH: A 12V 200Ah battery can deliver hundreds of amps in a short circuit — hot enough to vaporize metal and weld wrenches to terminals. Remove rings, watches, and metal jewelry before touching battery terminals.

VENTILATION: Inverters generate heat under load. Ensure 4+ inches of clearance on vented sides. Never install in a sealed box.

Expansion Path (Phase 2)

Add 200W–400W of solar with an MPPT controller tied to the same bus bar — free charging when parked.
Shore power input: 30A RV-style inlet + transfer switch for grid charging at campgrounds/home.
Upgrade to 300Ah or 400Ah bank if running fridge + 24hr devices (CPAP, freezer, Starlink).
Add a battery monitor (Victron BMV-712 / Renogy 500A shunt) for accurate SoC — voltage is a poor indicator on LiFePO4.
DC-to-DC with alternator protection: prevents cooking your 2026 truck's regulated smart alternator.