Wind Turbine FAQs

Summary Checklist for Your Choice
Choose the SR or ST-1200W if you want portability, low noise, and minimal investment for camping or caravans.
Choose the ST-2000, ST-3000, or ST-5000 if you have a stationary house/cabin and want to supplement solar panels at night.
Choose the ST-10kW — the largest turbine we sell — if you have heavy agricultural power needs, acreage, and a budget for proper mast engineering.
The vertical axis wind turbines listed on the BushLine Outdoor Equipment catalogue are categorised by physical design shapes, which dictate their ideal applications.
No.Wind turbines generate "wild" 3-phase AC power that changes voltage constantly with the wind speed. Connecting it directly to a battery or a standard solar inverter will instantly destroy your equipment. Youmustwire the turbine into a dedicatedWind/Solar Hybrid MPPT Controller with an integrated Dump Load Resistor. The controller converts the power to stable DC to charge your batteries safely.
You must match the turbine and its hybrid controller to the exact voltage of your existing battery bank:
- 12V: Best for compact mobile setups like caravans, 4WDs, and camper trailers.
- 24V: Great for medium-sized setups like off-grid sheds, cabins, and motorhomes.
- 48V: The gold standard for full off-grid home systems. Higher voltage means less energy loss through your wires and allows you to use thinner, safer cables.
When your battery bank becomes 100% fully charged, it stops accepting power. If a heavy wind storm hits at night when your batteries are full, a turbine with nowhere to send its power will "free-spin" out of control and physically fly apart. A hybrid controller fixes this by automatically diverting that excess power into the dump load resistor, which burns it off safely as heat and acts as an electronic brake to slow the turbine down.
No,that is the main benefit of the vertical design. Traditional horizontal "propeller" turbines create a high-pitched, annoying "chopping" noise. Our ST Tulip and Flower series utilise advanced omnidirectional maglev-style bearings, making them virtually silent and completely vibration-free, all you will hear is the wind. They are perfect for suburban blocks, tight caravan parks, and areas close to neighbours.
It will turn, but turning is not charging. The blades start rotating at about 1.5 m/s — a light breeze. Charging starts once the wind clears the cut-in speed of about 3.5 m/s, and output climbs from there — the rated figure is measured at 13 m/s (about 47 km/h). A gentle breeze keeps the turbine ticking over; it takes real wind to push real power into your batteries.
You should connect the wind turbine to a battery bank first, via a dedicated charge controller, rather than directly to an inverter. Connecting a wind turbine directly to a standard inverter will damage the equipment or cause the system to fail.
🔋 The Correct Wiring SequenceTo safely capture and use the power, your setup must follow this exact order:
1. Wind Turbine: Generates wild, fluctuating 3-phase AC power as wind speeds change.
2. Hybrid/Wind Charge Controller: Converts the unstable AC power into steady DC power. It also protects the turbine from over-speeding by applying an electronic brake during high winds.
3. Battery Bank (12V/24V/48V): Acts as a buffer to store the energy. It absorbs sudden power spikes from wind gusts and provides a steady source of energy.
4. Off-Grid Inverter: Connects to the battery, converting the stored DC battery power into standard AC power for your household appliances.
⚠️ Why You Cannot Skip the Battery
- Unstable Voltage: Wind speeds change second by second. Without a battery to absorb and smooth out these massive fluctuations, a direct-connect inverter would constantly turn off and error out.
- Turbine Destruction: When a battery is full or disconnected, a wind turbine loses its "load" (resistance). Without that resistance, the blades can spin out of control in high winds and physically destroy the unit. The charge controller uses the battery connection to safely dump excess power and slow the turbine down.
Wiring & Installation Requirement:This wind turbine generates 3-phase AC power andcannotbe connected directly to a battery, solar controller, or home inverter. To operate safely, it must run through a dedicatedWind/Solar Hybrid MPPT Controller with an integrated Dump Load Resistor. The dump load prevents the turbine from over-speeding and destroying itself in high winds once your batteries are fully charged.
It is almost always one of three common installation issues. Check them in order:
1. Your multimeter is set to DC (the most common mistake).
- The issue: measuring the three turbine wires with the meter set to DC volts.
- The reality: wind turbines generate 3-phase AC power directly from the stator.
- The fix: switch your multimeter to AC volts (V~). Testing these wires on a DC setting gives a false reading near zero.
2. The turbine is stalling because of a short.
- The issue: the blades turn heavily and slowly, or lock up.
- The reality: if any of the three AC output wires touch each other, or the controller’s internal braking diodes have short-circuited, it acts as a magnetic brake — the turbine can never spin fast enough to build voltage.
- The fix: completely disconnect the turbine from the controller. If it suddenly frees up and spins much faster, the problem is a short in the wiring or a faulty controller.
3. Voltage drop from thin cables.
- The issue: thin wire run a long way from the tower to the battery shed.
- The reality: thin solar or automotive cable over a long run (20 metres or more) loses the power as heat in the wire before it reaches the controller.
- The fix: use heavy cable between the mast and the controller on long runs — minimum 8 AWG, ideally 6 AWG.
Because the number on the box is a peak rating, not a promise. A turbine’s rated output is measured at a specific wind speed — for these models that is 13 m/s, about 47 km/h — and most sites see far less most of the time. Your display shows what the wind is delivering right now, so it will sit well below the rated figure and move second by second with the wind. That is physics, not a fault.
Where these turbines earn their keep is time: they keep charging through the night and through weather that shuts solar down. If the display shows 0 W while the blades are spinning, that is a different issue — see the 0 W question below.
Not necessarily — this is one of the most common questions we get, and it's rarely a faulty unit. It's usually a quick settings check, or (on a first-time install) how the wiring and start-up sequence were done. See our full Wind Turbine 0W Troubleshooting & Installation Guide for the complete walkthrough, or contact us and we'll help you sort it out.
Short answer: wire your bus bar and breakers before and after the controller, then power up in the right order — battery first, then solar, then wind. Getting the sequence right prevents almost all wiring issues, including the common “spinning but 0 W” problem.
Correct installation comes down to isolation and the right sequence:
- Fit a breaker before the controller (turbine/solar side) and after it (battery side), landing on a DC bus bar
- Keep the turbine-to-controller cable run to 2–10 metres to limit voltage drop
- Power up in this order: battery breaker first, then solar, then wind turbine last
See our full How to Install & Start Up guide for the complete step-by-step walkthrough and wiring diagram.

AA+AAA 5500mah Rechargeable Lithium Battery

$28.00 AUD

Pack Size

2pcs 4pcs 8pcs 16pcs

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The torch dies and the spare packet is empty.

Two in the morning, and the torch goes. You cannot see. Not seeing turns into trips, hazards and near misses, and that runs on into investigations, lost time and a real incident — all because the last four AAs in the crib bag were flat and the servo is a hundred kilometres back down the track.

These are AA and AAA cells with a USB-C socket built into the top of each one. No cradle charger to lose, no wall plug to pack. Plug the supplied lead into the ute, a power bank, a laptop or the USB output on your solar controller, and they fill up where they sit.

Now the part we are not going to dodge. The capacity printed on these cells is not a real figure. Every cell in the range is marked 5500 mAh — the AA and the AAA both, which is the first clue, because they are nowhere near the same size. We have set out the arithmetic in the Limits tab and we do not repeat the number as though it were a spec. Buy these for the built-in charging port and the flat 1.5 V output, which are both genuine and both useful. Do not buy them for the number on the label.

What It Does

Charges from the cell itself: a USB-C socket sits under the red cap on every cell, so the battery is its own charger.
Drops into 1.5 V gear: the output is regulated, so a torch, a handheld GPS or a trail camera sees the same voltage it would get from a disposable.
Holds voltage flat: no slow dimming as it empties. It runs at 1.5 V and then it stops.
Recharges off what you carry: any USB-A port will do it — the vehicle, a power bank, a laptop, a solar controller with a USB socket.
Stands in for the disposables: the supplier rates them to 2,000 charge cycles, so one pack replaces a lot of packets.
Comes as a mixed set: the supplier pack artwork shows every pack split evenly, half AA and half AAA.

Key Features

USB-C port per cell: each battery charges on its own from any USB-A source, using the lead in the pack.
Regulated 1.5 V output: lithium-ion inside with a step-down converter on top. It is not a bare 3.7 V cell.
Standard cell sizes: AA to the IEC R6 size and AAA to the IEC R03 size, so they fit any holder that takes disposables.
Protection board fitted: the supplier cutaway shows an overcharge and over-discharge board under the cap.
Steel outer shell: the same metal jacket a disposable uses, not a shrink-wrapped sleeve.
Charge time, as stated: the supplier quotes 60 minutes to full. We have not timed one.
Cycle life, as stated: the supplier quotes up to 2,000 cycles. We have not tested that either.
Lead in the pack: a USB-A to USB-C charging lead appears in every pack image. There is no wall plug.
Four pack sizes: 2, 4, 8 or 16 cells.
Brand marking: the cells are printed Daweikala. No model designation is printed on them.

Limits

Why we will not repeat the 5500 mAh figure

Every cell in this range is printed 5500 mAh. Here is the arithmetic that says it is a marketing number and not a measurement.

One number, two sizes: the AAA holds well under half the internal volume of a AA. The same figure cannot be true of both, so at least one of them is wrong on its face.
The space available: a AA is 14.5 mm across and 50.5 mm long, and in a USB cell that space also has to hold the charge circuit, the step-down converter and the socket. Less room for chemistry, not more.
What the good brands publish: XTAR rates a 1.5 V lithium AA of exactly this type at 2500 mAh, or 4150 mWh. That is the top of the market and it is under half of 5500.
A much bigger cell, a smaller number: EEMB sells a 1.5 V USB-C D cell — roughly six times the volume of a AA — rated at 5550 mWh, which is about 3700 mAh. A AA at 5500 mAh would be beating a D cell by half again.
What a bench test found: an independent test of a 1.5 V USB-C AA sold as 1600 mAh measured roughly 1200 mAh actually delivered. Cells of this type usually undershoot their own label, they do not triple it.
The brand contradicts itself: Daweikala also lists the same USB-C AA at 3800 mAh elsewhere, and prints the same 5500 on a 9 V block battery. One number applied to three different sizes is a sticker, not a spec.
Not a mWh mix-up: many of these listings quote mWh and buyers read it as mAh. Not this one — the supplier prints the unit as mAh on its own panel. Even read charitably as 5500 mWh it would be about 3700 mAh, still above anything this size delivers.

So the spec table below does not carry a capacity figure. The supplier has never published a tested one, we have not measured a cell ourselves, and we are not going to put a number there that we cannot stand behind.

What else these will not do

No low-battery warning: the output stays at 1.5 V and then cuts out. Anything with a battery indicator will read full until it stops dead. Do not put these in a smoke alarm, or in anything else that has to warn you before it dies.
Not for 3.7 V gear: these put out a regulated 1.5 V. If your device is built around a 14500 or 10440 lithium cell at 3.7 V, this is the wrong battery for it.
Take them out to charge: charge each cell through its own USB-C socket, out of the gear. Do not leave them sitting in a torch or a camera while they charge.
Do not mix them: every cell in a device should be the same type at the same state of charge. No mixing with alkaline or with NiMH.
Cradle chargers will not work: a NiMH or 18650 charger does nothing with these. The USB-C socket is the only way in.
No certificate sighted: the gallery carries a supplier image of FCC, CE and RoHS certificates. We have not sighted or verified any of them, the company named on the paperwork is not the brand printed on the cell, and none of it is an Australian approval. Treat those marks as printing, not as proof.
Cold-weather claim withdrawn: this page used to say they handle freezing temperatures. The supplier publishes no operating temperature range at all, so that line is gone.
No choice of AA or AAA: the only option is pack size. The supplier artwork shows every pack split evenly between the two sizes, and there is no single-size option on this listing.
Lithium handling: these are lithium cells. They do not belong in checked luggage and they do not belong in the household bin — take them to a battery recycling drop-off.
No cover: there is no guarantee of any kind on this product. Returns are for faulty or not-as-described only.

Q & A

If the printed capacity is wrong, why is the product still on the site?

Because the hardware underneath it is fine and it solves a real problem. A cell that charges off the ute without a separate charger, and holds a flat 1.5 V instead of sagging, is genuinely useful kit. What is wrong is the sticker, and we would rather sell it with the sticker called out than quietly pass the number on to you.

Will these run my torch longer than a disposable AA?

We have not measured either, so we will not put a number against it. What they do reliably is hold 1.5 V flat instead of fading, so the beam stays bright right up until it stops. The real win is that you recharge them instead of buying another packet.

Will they work in my trail camera, GPS or two-way?

If it takes AA or AAA at 1.5 V, yes — they are the standard sizes and the standard voltage. The one thing to watch is the cut-off: there is no fade to warn you, so on a camera left out in the bush you want to swap on a schedule rather than wait for a low-battery indication.

What is actually in a 4-cell pack?

The supplier pack artwork shows two AA and two AAA. The 2-cell pack is one of each, the 8-cell is four and four, the 16-cell is eight and eight. Pack size is the only option on this listing, so there is no way to take all AA or all AAA.

Do I need a charger as well?

No cradle, no dock. A USB-A to USB-C lead comes in the pack and plugs straight into whatever USB source you already have — the vehicle, a power bank, a laptop, a solar controller with a USB output. There is no wall plug in the pack, so use one you already own.

How long until they turn up?

10 to 14 days from the day you order, and it is worth allowing up to three weeks. Regional and remote addresses take longer again. Delivery is free to Australia and New Zealand.

Specs

Specification	Detail
Cell sizes	AA and AAA
Chemistry	Lithium-ion with a step-down regulator
Output voltage	1.5 V regulated, held flat to cut-off (supplier also quotes 1.55 V)
Capacity printed on cell	5500 mAh on both the AA and the AAA — not a figure we stand behind, see Limits
Capacity, tested	Not specified by supplier — no tested figure has ever been published
Charge port	USB-C, one per cell
Charge source	Any USB-A output
Charge time	Up to 60 minutes (supplier figure, untested)
Cycle life	Up to 2,000 cycles (supplier figure, untested)
Protection	Overcharge and over-discharge board (shown in supplier cutaway)
Shell	Steel
AA cell size	14.5 mm diameter, 50.5 mm long (IEC R6 standard size)
AAA cell size	10.5 mm diameter, 44.5 mm long (IEC R03 standard size)
Cell weight	Not specified by supplier. Supplier ships at 30 g per cell including packaging
Operating temperature	Not specified by supplier
Self-discharge rate	Not specified by supplier
Maximum discharge current	Not specified by supplier
In the pack	Cells plus one USB-A to USB-C charging lead. No wall plug
Pack sizes	2, 4, 8 or 16 cells
Pack split	Supplier artwork shows an even split of AA and AAA
Brand marking	Daweikala. No model designation printed
Certification	None sighted or verified — see Limits

Payment & Security

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Wind Turbine FAQs

Summary Checklist for Your Choice
Choose the SR or ST-1200W if you want portability, low noise, and minimal investment for camping or caravans.
Choose the ST-2000, ST-3000, or ST-5000 if you have a stationary house/cabin and want to supplement solar panels at night.
Choose the ST-10kW — the largest turbine we sell — if you have heavy agricultural power needs, acreage, and a budget for proper mast engineering.
The vertical axis wind turbines listed on the BushLine Outdoor Equipment catalogue are categorised by physical design shapes, which dictate their ideal applications.
No.Wind turbines generate "wild" 3-phase AC power that changes voltage constantly with the wind speed. Connecting it directly to a battery or a standard solar inverter will instantly destroy your equipment. Youmustwire the turbine into a dedicatedWind/Solar Hybrid MPPT Controller with an integrated Dump Load Resistor. The controller converts the power to stable DC to charge your batteries safely.
You must match the turbine and its hybrid controller to the exact voltage of your existing battery bank:
- 12V: Best for compact mobile setups like caravans, 4WDs, and camper trailers.
- 24V: Great for medium-sized setups like off-grid sheds, cabins, and motorhomes.
- 48V: The gold standard for full off-grid home systems. Higher voltage means less energy loss through your wires and allows you to use thinner, safer cables.
When your battery bank becomes 100% fully charged, it stops accepting power. If a heavy wind storm hits at night when your batteries are full, a turbine with nowhere to send its power will "free-spin" out of control and physically fly apart. A hybrid controller fixes this by automatically diverting that excess power into the dump load resistor, which burns it off safely as heat and acts as an electronic brake to slow the turbine down.
No,that is the main benefit of the vertical design. Traditional horizontal "propeller" turbines create a high-pitched, annoying "chopping" noise. Our ST Tulip and Flower series utilise advanced omnidirectional maglev-style bearings, making them virtually silent and completely vibration-free, all you will hear is the wind. They are perfect for suburban blocks, tight caravan parks, and areas close to neighbours.
It will turn, but turning is not charging. The blades start rotating at about 1.5 m/s — a light breeze. Charging starts once the wind clears the cut-in speed of about 3.5 m/s, and output climbs from there — the rated figure is measured at 13 m/s (about 47 km/h). A gentle breeze keeps the turbine ticking over; it takes real wind to push real power into your batteries.
You should connect the wind turbine to a battery bank first, via a dedicated charge controller, rather than directly to an inverter. Connecting a wind turbine directly to a standard inverter will damage the equipment or cause the system to fail.
🔋 The Correct Wiring SequenceTo safely capture and use the power, your setup must follow this exact order:
1. Wind Turbine: Generates wild, fluctuating 3-phase AC power as wind speeds change.
2. Hybrid/Wind Charge Controller: Converts the unstable AC power into steady DC power. It also protects the turbine from over-speeding by applying an electronic brake during high winds.
3. Battery Bank (12V/24V/48V): Acts as a buffer to store the energy. It absorbs sudden power spikes from wind gusts and provides a steady source of energy.
4. Off-Grid Inverter: Connects to the battery, converting the stored DC battery power into standard AC power for your household appliances.
⚠️ Why You Cannot Skip the Battery
- Unstable Voltage: Wind speeds change second by second. Without a battery to absorb and smooth out these massive fluctuations, a direct-connect inverter would constantly turn off and error out.
- Turbine Destruction: When a battery is full or disconnected, a wind turbine loses its "load" (resistance). Without that resistance, the blades can spin out of control in high winds and physically destroy the unit. The charge controller uses the battery connection to safely dump excess power and slow the turbine down.
Wiring & Installation Requirement:This wind turbine generates 3-phase AC power andcannotbe connected directly to a battery, solar controller, or home inverter. To operate safely, it must run through a dedicatedWind/Solar Hybrid MPPT Controller with an integrated Dump Load Resistor. The dump load prevents the turbine from over-speeding and destroying itself in high winds once your batteries are fully charged.
It is almost always one of three common installation issues. Check them in order:
1. Your multimeter is set to DC (the most common mistake).
- The issue: measuring the three turbine wires with the meter set to DC volts.
- The reality: wind turbines generate 3-phase AC power directly from the stator.
- The fix: switch your multimeter to AC volts (V~). Testing these wires on a DC setting gives a false reading near zero.
2. The turbine is stalling because of a short.
- The issue: the blades turn heavily and slowly, or lock up.
- The reality: if any of the three AC output wires touch each other, or the controller’s internal braking diodes have short-circuited, it acts as a magnetic brake — the turbine can never spin fast enough to build voltage.
- The fix: completely disconnect the turbine from the controller. If it suddenly frees up and spins much faster, the problem is a short in the wiring or a faulty controller.
3. Voltage drop from thin cables.
- The issue: thin wire run a long way from the tower to the battery shed.
- The reality: thin solar or automotive cable over a long run (20 metres or more) loses the power as heat in the wire before it reaches the controller.
- The fix: use heavy cable between the mast and the controller on long runs — minimum 8 AWG, ideally 6 AWG.
Because the number on the box is a peak rating, not a promise. A turbine’s rated output is measured at a specific wind speed — for these models that is 13 m/s, about 47 km/h — and most sites see far less most of the time. Your display shows what the wind is delivering right now, so it will sit well below the rated figure and move second by second with the wind. That is physics, not a fault.
Where these turbines earn their keep is time: they keep charging through the night and through weather that shuts solar down. If the display shows 0 W while the blades are spinning, that is a different issue — see the 0 W question below.
Not necessarily — this is one of the most common questions we get, and it's rarely a faulty unit. It's usually a quick settings check, or (on a first-time install) how the wiring and start-up sequence were done. See our full Wind Turbine 0W Troubleshooting & Installation Guide for the complete walkthrough, or contact us and we'll help you sort it out.
Short answer: wire your bus bar and breakers before and after the controller, then power up in the right order — battery first, then solar, then wind. Getting the sequence right prevents almost all wiring issues, including the common “spinning but 0 W” problem.
Correct installation comes down to isolation and the right sequence:
- Fit a breaker before the controller (turbine/solar side) and after it (battery side), landing on a DC bus bar
- Keep the turbine-to-controller cable run to 2–10 metres to limit voltage drop
- Power up in this order: battery breaker first, then solar, then wind turbine last
See our full How to Install & Start Up guide for the complete step-by-step walkthrough and wiring diagram.

Wind Turbine FAQs

AA+AAA 5500mah Rechargeable Lithium Battery

Tracking

Keep an eye on your gear.