This a walk-through of how we did our simple , easy , and inexpensive campervan electrical system. First you need to think about how much electricity you're going to want. Things like air conditioners, heaters, refrigerators and microwaves use a lot. If you don't plan to use those things in when you're camping, you don't need to spend thousands of dollars on your electrical system.

Solar panels are great if you plan to leave your van off for more than a few days, but if you are moving around, the alternator will generate more than enough power to justify the cost of solar panels. It seems like a lot of people just want them for the 'look'. With this system you can always add them later if you find yourself running out of juice.

Calculating Conductor Size: https://www.bluesea.com/resources/1437

Battery: Vmaxtanks VMAXSLR125 AGM 12V 125Ah SLA Rechargeable Deep Cycle Battery
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Inverter: GoWISE Power 600W Pure Sine Wave Inverter 12V DC to 120V AC
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Isolator: KeyLine Chargers 12V 140 Amp Dual Battery Isolator Voltage Sensitive Relay (VSR)
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Fuse Block: Baomain ANL Fuse Holder (w/ 100 Amp fuse- for 4 gauge cable)
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Fuses: Baomain ANL Fuse 80 Amp 2 Pack (for protecting the 4 gauge cable to starter battery)
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Fuse: 8 AWG Fuse Holder with 5 30 amp fuses (for protecting 8 gauge cable to inverter)
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Fuse Block (12V): 6 Way Blade Fuse Box for Automotive 12v (Fuse block for 12V accessories)
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