Power Inverters, Deep-Cycle Batteries and Off-Grid Power in New Zealand

Waveinverter is an off-grid and 12V / 24V / 48V DC power specialist in Henderson, Auckland. We supply pure sine wave inverters, AGM and lead-carbon deep-cycle batteries, MPPT charge controllers, DC-DC chargers and steel ground-mount racking made to AS/NZS 1170.2, across New Zealand and the South Pacific.

Founded and led by David Jade (MSc, Energy Technology), we design complete systems balanced around your real generation and consumption, for rural off-grid homes, campervans and motorhomes, marine, telecommunications and trade fleets. We consult on DC work within different applications, such as on forklift and service vehicle fleets. We are also a WINZ-registered supplier.

Not too sure where to start?

What are you powering?

• Off-Grid Power for NZ Homes: sizing from your winter use, choosing the bank, and where a generator beats a bigger battery.
• Campervan, Motorhome & RV Power Systems: the house battery, charging while you drive, and what AS/NZS 3001.2 means for your van.
• Marine DC Power Systems: isolation, charging a house battery on a boat, and what the RCD rule says under AS/NZS 3004.2.
• Trade & Wholesale Supply: auto electricians, solar installers, forklift fleets and resellers, with spec support and pricing on volume.

Want to work it out yourself?

• Calculators: the DC voltage drop calculator gives you the cable size a run needs, and the AWG chart converts between AWG and mm2 cable sizes.

Want the background first?

• Off-Grid Power FAQ: 153 real questions from over 15 years of off-grid and DC work that we’ve been asked and problems we’ve solved, grouped into twelve topics.
• Battery charging reference: absorption, float and maximum charge current, model by model, for every battery range we sell.
• The ebook: the 10 most common mistakes people make buying a power inverter, and how to avoid them.