Going Off-Grid

Gear / DIY Portable Power Station

DIY Portable Power Station

Turning my old 12V barn system into a rolling power station.

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I had my old 12v system from my barn that has just been sitting on the shelf. I didn’t really know what I wanted to do with it till I started browsing YouTube one day and came across a handful of videos where people built their own portable power stations (or solar generators if you prefer). I thought that would be a great use for my old system. It would give me the ability to have power out back when I’m working where before I would have to either run the generator or I would have to run a lot of extension cords.

Ridgid Pro Gear 2.0 Rolling Tool Box

Ridgid Pro Gear 2.0 Rolling Tool Box

Rugged rolling case that serves as the enclosure for the whole portable power station.

See it in a video
EVE 280Ah LiFePO4 Cells

EVE 280Ah LiFePO4 Cells

  • 3.2V
  • 280Ah
  • 896Wh

Large prismatic LiFePO4 cells from EVE, a well-known manufacturer. These make up the battery pack.

Full specs
Model
EVE LF280K
Voltage
3.2V nominal
Capacity
280Ah
Energy
896Wh per cell
Max continuous
1C (280A) charge and discharge
Chemistry
LiFePO4

From the manufacturer unless noted. Check the current spec sheet before sizing a system.

See it in a video
JK Smart BMS (2A Active Balance)

JK Smart BMS (2A Active Balance)

  • 16S
  • 2A balance

Protects and balances the cells in the pack, with Bluetooth monitoring.

Full specs
Cells
16 in series
Balancing
2A active
Monitoring
Bluetooth app

From the manufacturer unless noted. Check the current spec sheet before sizing a system.

See it in a video
GIANDEL 2200W Pure Sine Inverter

GIANDEL 2200W Pure Sine Inverter

  • 12V
  • 2.2 kW
  • 120V

Turns battery power into clean household AC for tools and appliances.

Full specs
Battery
12V
AC output
2,200W continuous
Peak
4,400W
Output voltage
110–120V pure sine wave

From the manufacturer unless noted. Check the current spec sheet before sizing a system.

See it in a video
Victron SmartSolar MPPT 150/35

Victron SmartSolar MPPT 150/35

  • 12–48V
  • 35A
  • 150V PV

Solar charge controller, so the power station can recharge from panels out in the field.

Full specs
Battery
12, 24 or 48V (auto select)
Charge current
35A
Solar input
500W at 12V, 1,000W at 24V, 2,000W at 48V
PV voltage
150V max (145V operating)
PV short circuit
40A max
Monitoring
Bluetooth, VE.Direct

From the manufacturer unless noted. Check the current spec sheet before sizing a system.

See it in a video
W1209 12V Thermostat Board

W1209 12V Thermostat Board

Small temperature controller with a relay that switches the cooling fan on only when the box gets warm.

See it in a video
Power Grommet (2 AC Outlets + 3 USB)

Power Grommet (2 AC Outlets + 3 USB)

Panel-mount outlets and USB ports, set into the lid for easy access.

See it in a video
Victron Blue Smart IP65 12V 10A Charger

Victron Blue Smart IP65 12V 10A Charger

  • 12V
  • 10A

Weatherproof AC charger for topping up the battery from a wall outlet, with Bluetooth monitoring.

Full specs
Battery
12V, lead-acid or lithium
Charge current
10A (3A low-current mode)
AC input
120V
Weather rating
IP65
Monitoring
Bluetooth

From the manufacturer unless noted. Check the current spec sheet before sizing a system.

Cloth Wiring Harness Tape

Cloth Wiring Harness Tape

Fabric tape for bundling and protecting the internal wiring, the way car manufacturers do it.

See it in a video
90° Flat-Plug Y Splitter

90° Flat-Plug Y Splitter

Low-profile splitter that gets two AC outlets from one inside a tight enclosure.

See it in a video
DROK 0–90V 300A Battery Monitor

DROK 0–90V 300A Battery Monitor

Shows voltage, current, power and remaining capacity using a Hall-effect sensor around the cable.

See it in a video

Hamolar 12V 200A Continuous-Duty Relay

Heavy-duty relay used as a remote on/off switch for the main battery feed.

See it in a video