Both brands make good blankets. The honest answer is that the choice between them matters less than getting the wattage right and the regulator right, and most people get one of those wrong.
Here is how they differ, and what actually decides whether your fridge stays cold on day four.
Work Out the Wattage First
Start with consumption, not with the product page.
A typical touring setup, meaning a 12V fridge, LED lighting, phone and camera charging, and maybe a laptop, draws somewhere between 30 and 50 amp hours a day. A CPAP machine adds meaningfully to that.
A 150W blanket in decent sun produces roughly 7 to 8 amps an hour. Across five or six productive hours that is 35 to 48 amp hours back into the battery, which matches the daily draw with very little margin.
That is the arithmetic, and the margin matters more than the match. Cloud, a bad angle, or a hot day all cut output, and a blanket sized exactly to your consumption will not keep up over a week. Size up rather than down. Both brands sell in the 120W to 200W range, and the extra fifty watts costs less than the second battery you will otherwise want.
The Regulator Decides More Than the Panel
Every blanket needs a charge controller between it and the battery, and this is where cheap kits fail.
MPPT over PWM. An MPPT controller extracts meaningfully more, particularly in weak light and when the panel is cold. On a 150W blanket the difference over a day is worth the price gap.
Correct chemistry. AGM, gel, wet cell and lithium all want different charge profiles. Many older controllers have no lithium program at all, and running a lithium battery on an AGM profile either leaves it permanently undercharged or holds it at a voltage that shortens its life. If you run lithium, or expect to, confirm the controller supports it.
Integrated or external. Blankets ship with a controller built in, which is simpler. If you already have a good MPPT controller in the vehicle, a blanket without one avoids paying twice and avoids two controllers arguing with each other. Both brands sell both configurations.
iTechworld
An Australian brand with a strong following among people running integrated 12V systems, particularly its lithium batteries.
The blankets are well regarded for durable construction, and the appeal for many buyers is ecosystem: if your battery, DC-DC charger and monitoring are already iTechworld, the blanket integrates without adapters or compatibility questions.
Local support is the practical advantage. Warranty claims go to an Australian business rather than an offshore support queue, which matters on gear that gets used hard in places where returning it is not simple.
Renogy
A global manufacturer with deep research and development behind its product line, a wider range, and often sharper pricing at equivalent specification.
Renogy's scale shows in the breadth of options and in the documentation, which is generally better than the Australian market average. Efficiency is competitive and the designs are straightforward to use.
The trade-off is that support is a larger, more distant operation. That is fine when nothing goes wrong and slower when something does.
What Actually Separates Them
Not much, at equivalent specification. Both use high-efficiency monocrystalline cells, both build for dust and UV, and both fit Anderson plugs, which is what the Australian market expects.
The decision usually comes down to four things:
Existing gear. If your 12V system is already one brand, staying with it removes compatibility questions.
Support proximity. iTechworld's Australian presence is worth something on a warranty claim. Weigh that against price.
Current pricing. Both discount regularly and the gap moves. Compare the specific models you are considering rather than the brands.
Warranty terms. Read the length and what it covers, particularly whether the integrated controller is covered on the same terms as the panel.
Where Blankets Win and Where They Lose
Worth being clear on this before buying either.
Blankets fold compactly, weigh far less than rigid panels, and can be moved through the day to follow the sun. For tent campers, vehicles without roof racks, and anyone prioritising pack size, they are the right answer.
They also cost more per watt than rigid panels, they are easier to damage if packed carelessly, and they lie flat unless you prop them. That last point costs real output: cells produce most when facing the sun squarely, and flat on a bonnet is not that.
Aim for 15 to 40 degrees, tilted toward the sun, and adjust it two or three times a day. Drape it over an awning arm, prop the back edge on a camp chair or a jerry can, or run bungee cords through the eyelets. The difference between flat and angled can be a third of your output, which is more than any difference between these two brands.
Making It Last
Roll rather than fold sharply, because creases break cell interconnects in the same place every time. Keep the cable clear of pinch points. Wipe it down after dusty or coastal trips. Test it in the driveway before you leave.
Handled that way, a quality blanket from either brand holds most of its rated output for years. Handled badly, the brand on the bag makes no difference at all.
