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Overview
The Solar Powered Air Pump 4W with MPPT Battery Backup is a compact pond aerator that delivers steady oxygenation through a single diffuser stone, running directly from sunlight and automatically extending operation using its built-in Battery when light levels drop.
4W solar panel (>20% efficiency)
MPPT-optimised solar charging
Li-Fe Battery backup built-in
10+ hours minimum backup runtime
Up to 16.5 hours on sunny days
2 LPM flow rate
500 mmHg max air pressure
Brushless DC pump
Locked rotor protection
Reverse polarity protection
IP44 weather protection
Colour status indicators
Overview
The Solar Powered Air Pump 4W with MPPT Battery Backup is a compact pond aerator that delivers steady oxygenation through a single diffuser stone, running directly from sunlight and automatically extending operation using its built-in Battery when light levels drop.
Solar Powered Air Pump 4W with MPPT Battery Backup
Built for reliable day-to-evening aeration, this 4W solar air pump maintains oxygen levels in smaller ponds by running from sunlight first, then switching to its integrated Battery backup when solar input drops.
✓ 4W Solar Panel✓ MPPT Optimised✓ 2 LPM Flow Rate✓ 10+ Hr Backup✓ For Ponds up to 4500L✓ Free 24 Hour UK Delivery
Exclusive Revolutionary MPPT Technology - Features and Benefits
PowerBee Ltd proudly introduces the world's first garden solar pumps with Maximum Power Point Tracking (MPPT) technology - a breakthrough previously only available in industrial solar systems. The battery for this pump includes our own patent pending MPPT system, which automatically optimizes solar energy conversion to deliver 30% more efficiency than conventional solar pumps, ensuring stronger performance in all weather conditions.
MPPT solar air pump – maximum efficiency for aeration systems
Advanced Solar Optimization > 30%
Maximum Power Point Tracking (MPPT) ensures peak efficiency in all weather conditions.
Up to 30% higher energy conversion compared to standard solar systems.
Optimized performance even during (in season) cloudier or lower-light periods.
Extended Performance and Reliability
Faster battery charging for uninterrupted operation.
Extended operating hours for pumps, aerators, and fountains.
Reliable functionality throughout the day and night.
Innovative Technology, Industry First
First to bring MPPT technology to garden and pond solar systems.
Designed for solar pumps, oxygenators, and fountains of all sizes.
Sets a new standard for efficiency and performance in the industry.
Core Performance & Power System
The brushless DC pump delivers up to 2 LPM through a single 30mm air stone, with MPPT-optimised charging to make the most of available sunlight and keep runtime consistent across typical spring and summer conditions.
Aeration Output
Up to 2 LPM flow rate
Up to 500 mmHg pressure
Single 30mm air stone
Quiet running (< 40 Db)
Solar + Battery Behaviour
4W polycrystalline panel
MPPT charging control
Li-Fe 6.4V 1500mAh Battery
10+ hours minimum on Battery
Protection & Status
Locked rotor protection
Reverse polarity protection
IP44 weather protection
Green / red fault indicators
Pond Size & Stocking Guide
This 4W system is best suited to compact wildlife ponds and lightly stocked fish ponds where steady daytime aeration, plus Battery-supported evening runtime, helps maintain oxygen levels during warmer months.
Pond Category
Capacity
Recommended Stocking
Notes
Small Ponds
Up to 4500L
Up to 8 goldfish 2–3 small koi
Ideal for wildlife & planted ponds
Medium Ponds
4500–6800L
Up to 12 goldfish 3–4 medium koi
Central stone placement recommended
Larger Ponds
6800L+
Heavier fish loads Koi collections
Use multiple units for coverage
Flexible Installation & Placement
With a 3m solar cable and 2m air hose, you can position the panel for best sun exposure while placing the diffuser stone where it delivers the most benefit in your pond.
Mounting Options
Adjustable tilt bracket
Ground stake included
Wall mount kit included
Easy access positioning
Airline & Diffuser
2m air hose included
Single 30mm air stone
Simple push-fit setup
Steady airflow delivery
Best Practice
South-facing panel preferred
Adjust angle seasonally
Avoid shaded panel locations
Place stone at usable depth
Reliable Aeration for Smaller Ponds
If you need dependable oxygenation with straightforward setup, this 4W MPPT solar air pump provides stable daytime output and practical Battery-supported runtime when light levels drop.
Bought this single Solar Oxygenator Air Pump with Battery Backup about 1 month ago for my medium size pond and it's far exceeded my expectations, on a mixed sunny/cloudy day the sun had gone at 4pm and this was still going when I checked at 8:30pm, I think it needs full sun to charge up initially but it's an excellent addition to my pond.
Solar oxygenator
Only recently bought but is running very well in small fish pond.
Impressive
Powerful and creates a great whirlpool for the fish even when no sunshine. At 7am , cloudy and it was going like the clappers.
Solar Oxygenator Air Pump with Battery Backup
for the price this bit of kit is brilliant, it is more consistent than any other air pump we have had basically the battery backup smooths out the cloud cover and lets it run for longer we needed this as we have 20 Shubunkin which are well pleased with the results :)
