Battery Monitors, Shunts and Accurate State of Charge

Battery Monitors, Shunts and Accurate State of Charge

Intro
Knowing your true state of charge prevents surprises off-grid. A proper shunt monitor is the most reliable way to track LiFePO4 usage.

Why Use a Shunt Monitor

  • Accuracy - measures real current flow in and out of the battery.
  • History - tracks daily usage, charge cycles and trends.
  • Alerts - set thresholds for low state of charge or high load.


Setup Tips

  • Install the shunt in the main negative so all loads and chargers pass through it.
  • Calibrate to your battery bank capacity and sync after a full charge.
  • Keep sense wires short and secure.


What App or Display Data Matters

  • State of charge for the quick glance.
  • Current and power to see real-time draw or charge.
  • Daily Ah or Wh to plan solar and driving time.


Bottom line
A shunt-based monitor gives confidence day to day and helps diagnose issues before they become problems.

Pair your lithium battery with a quality monitor

Why Choose VanDIY?

VanDIY is a Queensland-based supplier of quality caravan parts and accessories. We’ve been supporting Australian travellers and DIY builders since 2006, offering proven products and real local support.

  • With warehouses in Gympie, Brisbane and Melbourne – we dispatch Australia-wide
  • Authorised SJRV distributor and product partner
  • 3-year warranty on major components
  • All stock tested and backed before it reaches our shelves
  • Fast, transparent freight and reliable customer service

Frequently Asked Questions

What caravan parts do you stock?


We offer a wide range of caravan parts and accessories including windows, fridge vents, roof fans, lithium batteries, 12V fridges, hot water systems, toilets, and washing machines – all designed for Australian conditions.

Where do you ship from?


We have 3 warehouse options - Gympie, Brisbane and Melbourne - Providing an item is in stock we will ship ex Gympie or Brisbane. If not in stock here, we'll ship ex Melbourne via the SJRV warehouse with fast and reliable freight options available Australia-wide.

Do you offer pickup?

Yes, we offer pickup from our Brisbane warehouse. If the item is out of stock in Brisbane, we'll ship it up ex Melbourne to the warehouse and notify you when ready.

Do you sell to trade and DIY customers?


Yes – VanDIY supplies both trade customers and DIY builders. Contact us for wholesale or volume pricing if you’re building or fitting multiple vans.

Shop Caravan Parts & Accessories Australia-Wide


Whether you’re building, repairing or upgrading your caravan, VanDIY makes it easy to find the right parts for your project. We stock a complete range of caravan parts and accessories including windows, vents, fans, fridges, lithium batteries and more – all tested for durability in Australian conditions. With warehouses in Gympie, Brisbane and Melbourne, we ship fast across Australia, offering real local support and advice. Browse online today or contact our team for help choosing the right gear for your build.