Level 1 · Starter build

Budget AGM Starter wiring diagram

The lowest-cost way into van electrics: an AGM battery, a modest solar panel and alternator charging running a small fridge, lights and USB sockets. Everything is sized conservatively so the budget bank lasts.

Leisure Battery Bank2 × 100 Ah AGMMain Battery FuseBattery IsolatorPositive & Negative Busbars150 A rated pairSolar Array400 W (2 × 200 W)PV IsolatorMPPT Charge ControllerVictron SmartSolar 100/30Starter Battery / AlternatorVehicle 12 V systemDC-DC ChargerRenogy 40A DC-DC Charger12 V Fuse Box6-way blade fuse box12 V CircuitsCompressor Fridge (Small) · LED Spot Lights · Water Pump +1Chassis Bond
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System at a glance

Daily usage
710 Wh
Battery
200 Ah AGM
Solar array
400 W
Est. parts cost
£1,054

Appliances in this build

AppliancePowerDaily useSupply
Compressor Fridge (Small)45 W12 h12V DC
LED Spot Lights × 45 W3 h12V DC
Water Pump60 W0.5 h12V DC
USB Sockets × 25 W8 h12V DC

Recommended parts

Auto-selected for this system size — every part is swappable in the editor.

Battery
Varta AGM 100Ah × 2
12 V · 100 Ah · 1.20 kWh · AGM
£358
Solar panel
BougeRV 200W Flexible × 2
200 W · flexible · 1560 x 700 x 2.5mm
£398
MPPT controller
Victron SmartSolar 100/30
30 A · up to 440 W solar
£139
DC-DC charger
Renogy 40A DC-DC Charger
40 A
£159

Make it yours

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