Solar Bilge Pump With Solid-State Water Detection & Safe Ni-MH Battery Technology
The Raintaker® Solar Bilge Pump is designed to provide reliable automatic water removal without relying on your boat’s primary battery system. Combining a high-capacity 1,100 GPH bilge pump, solid-state water detection, rechargeable Ni-MH battery power, built-in battery monitoring, and solar charging, Raintaker delivers serious pumping capability in an exceptionally compact package.
Unlike traditional automatic bilge pump systems that depend on a mechanical float switch, Raintaker uses solid-state water sensing technology with no moving float mechanism to stick, jam, or wear out. When water reaches the detection point, the system automatically activates the pump to remove water. This allows Raintaker to move large amounts of water quickly while maintaining a small footprint that works well in tight marine spaces.
A Solar Bilge Pump Without a Traditional Float Switch
Mechanical float switches have been used in boats for decades, but they introduce another moving component into an environment filled with water, debris, corrosion, and vibration. Raintaker takes a different approach.
Our solid-state bilge pump sensor has no moving float arm or mechanical switching mechanism. This makes the automatic pumping system especially well suited for demanding marine environments where dependable water detection matters.
The compact sensor design also allows Raintaker to detect and remove water without requiring the additional space needed for a conventional pump-and-float-switch arrangement. The result is an automatic solar bilge pump capable of removing up to 1,100 gallons per hour while occupying remarkably little space.
Built-In Battery Monitoring
An automatic bilge pump is only useful when power is available. That is why Raintaker incorporates built-in battery monitoring rather than leaving the condition of the internal battery unknown.
An easy-to-read LED battery gauge allows the battery charge level to be checked at a glance. Combined with automatic solar charging, this gives boat owners a simple way to verify system power and maintain the pump for dependable operation.
Why Raintaker Uses Ni-MH Batteries Instead of Lithium
Raintaker is intentionally designed without lithium batteries.
Bilges and other enclosed marine spaces can be hot, wet, and poorly ventilated. Lithium batteries can present additional concerns if damaged, improperly charged, overheated, or exposed to conditions that lead to an internal failure. One of the most serious failure modes associated with lithium-ion batteries is thermal runaway, in which increasing internal temperature can create a self-sustaining reaction.
Raintaker instead uses proven rechargeable Ni-MH battery technology selected for dependable service in our application. The electrical system is fused and ignition protected, making it specifically designed around the requirements of small marine spaces.
For a product that may spend years sitting inside or around a boat and waiting for water to appear, we believe predictable, proven battery technology is the right approach.
Proprietary Solar Charge Controller for Long Battery Life
A good solar powered bilge pump is more than a pump connected to a solar panel.
Raintaker uses a proprietary solar charge controller engineered specifically around the battery and charging requirements of the system. It manages charging to help prevent overcharging and maximize battery service life.
The goal is simple: maintain the battery correctly so the system can provide years of reliable automatic bilge protection rather than simply producing the highest possible charging voltage.
Three Ways to Charge Your Raintaker Solar Bilge Pump
Raintaker provides three convenient charging options so owners are not dependent on sunlight alone:
- Included Wall Charger — Charge the Raintaker from standard AC power at home, in the garage, or at the dock. Perfect for when you need automatic water removal and the sun hasn’t shined for days.
- Built-In Solar Panel — The onboard solar panel maintains the battery automatically while the unit is outdoors, allowing Raintaker to operate independently from the boat’s starting or house battery.
- Optional 12V Boat / RV Charging Cord — Connect Raintaker to a compatible 12V source aboard a boat, RV, or other vehicle when additional charging flexibility is needed.
This combination gives Raintaker the independence of a solar bilge pump without limiting the owner to solar charging.
500 GPH/ 1,100 GPH Pumping Capacity in an Extremely Small Footprint
Compact does not mean low capacity.
Raintaker incorporates a 1,100 GPH, 12V ignition-protected bilge pump capable of moving substantial amounts of water when activated. By integrating the pump, battery, automatic water sensing, charging electronics, and solar power into a purpose-built system, Raintaker provides substantial pumping capability without requiring a complicated permanent installation.
That makes it particularly useful for boats where space is limited or where an independent automatic bilge pump system is desirable.
Independent Automatic Bilge Protection
Traditional automatic bilge pumps commonly depend on the boat’s existing 12V electrical system. If the boat battery becomes discharged, disconnected, or unavailable, that can also affect the bilge pump system.
Raintaker provides its own rechargeable battery, solar charging system, automatic solid-state water detection, and high-capacity pump in one compact system.
It can therefore provide an additional, independent layer of water removal without depending exclusively on the boat’s primary battery bank.
Raintaker® Solar Bilge Pump — Dock It, Leave It, Trust It.
Raintaker combines the features that matter in an automatic marine water-removal system: 1,100 GPH pumping capacity, solid-state non-float water detection, rechargeable Ni-MH battery technology, built-in battery monitoring, proprietary solar charging, fused and ignition-protected electrical components, and three convenient charging methods.
The result is a compact automatic solar bilge pump and bilge protection system designed to remove large amounts of water while taking up very little space.
No mechanical float switch. No lithium battery. No dependence on the boat’s primary battery for normal solar-powered operation.
Just intelligent, automatic bilge protection designed for long-term marine use.
Raintaker® — Dock It, Leave It, Trust It.