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Yes. DeWalt currently makes a cordless battery transfer pump. The DeWalt DCE050 20V MAX Transfer Pump is sold in the United States as the DCE050P1 kit, which includes the pump, a 20V MAX 5Ah battery, and a charger. It can also run on compatible DeWalt 20V MAX and FLEXVOLT batteries.
For rainwater systems, the important question is not just whether DeWalt makes one. You also need to know what kind of water it can move, how the hoses connect, and whether its operating limits fit your setup.
What Is the DeWalt Battery Transfer Pump?
The DCE050 is a portable pump made to move clear water from one place to another. DeWalt lists uses such as transferring water from tanks and water heaters. It is a transfer pump rather than a submersible pump, so the pump itself stays outside the water.
Its main specifications include:
| Feature | DeWalt DCE050 |
|---|---|
| Battery system | 20V MAX |
| Rated flow | Up to 10 GPM |
| Hose connection | 3/4-inch GHT |
| Maximum lift | 25 feet |
| Higher-head performance | 4.5 GPM at 45 feet of head |
| Water temperature range | 32°F to 140°F |
| Pump type | Portable, self-priming transfer pump |
DeWalt says the pump can move up to 10 gallons per minute under its stated test conditions. Actual flow will usually fall when the hose gets longer, the pump has to lift water farther, or the discharge point is higher.
GPM means gallons per minute. It tells you how quickly the pump can move water.
Can You Use It to Transfer Rainwater?
It can be useful for clear, non-potable rainwater in some situations.
For example, you might use a portable transfer pump to move collected water between tanks or move stored water to another container. It may also work for occasional water movement where running an extension cord is inconvenient.
However, there is an important limitation for rainwater users: DeWalt says the DCE050 is not waterproof or weatherproof and should not be used outdoors or in wet or overly humid conditions. The pump also must not be submerged.
That makes it much different from an outdoor rainwater pump designed to stay beside a tank year-round.
If you use a DCE050 around a rainwater tank, the pump needs to stay on a dry, stable surface and protected from rain, splashing, and standing water.
It Is Better for Clear Water Than Dirty Roof Runoff
DeWalt specifies clear water or an approved clear water/glycol mixture for this pump. The manual also says to keep the inlet free of foreign objects and debris.
That matters with rainwater.
Water straight from a roof may contain:
- leaves
- grit
- roofing particles
- insects
- organic debris
- sediment from the bottom of a tank
A transfer pump should not be treated like a trash pump that can handle large debris.
If you are drawing from a rain barrel or cistern, it is better to pull relatively clear water from above the settled material at the bottom. A suitable inlet screen or prefilter can also help keep debris from reaching the pump.
Do not assume filtration makes the water safe to drink. Filtration for protecting a pump and treatment for making water suitable for drinking are different jobs.
What Hose Connections Does It Use?
The DCE050 uses 3/4-inch GHT, which means 3/4-inch garden hose thread.
DeWalt specifies hoses with 3/4-inch female GHT fittings at the pump connections. The company also recommends a heavy-duty suction hose on the inlet so it does not collapse when the pump creates suction.
This is important if you plan to connect the pump to a rain barrel or IBC tote.
A typical setup might be:
rain tank → tank outlet → suitable adapter → suction hose → pump → discharge hose
Do not assume a tank outlet will connect directly to the pump. IBC totes, cisterns, and rain barrels can use many different thread types and outlet sizes.
You may need an adapter between the tank fitting and the 3/4-inch garden hose connection.
Why the Suction Hose Matters
The inlet side of a transfer pump works under suction.
A normal soft garden hose may flatten if the pump creates enough vacuum. When that happens, flow drops sharply or stops.
A reinforced suction hose is a better choice on the inlet side.
Air leaks are another common problem. DeWalt notes that even small leaks at the inlet connection can greatly reduce suction and may stop the pump from priming.
Priming means getting water into the pump so it can begin moving water normally. A self-priming pump makes this easier, but it still needs airtight inlet connections and must stay within its operating limits.
How High Can the DeWalt Transfer Pump Lift Water?
DeWalt lists a maximum lift of 25 feet. It also lists about 4.5 GPM at 45 feet of head height under its stated conditions.
Lift and head height are related but are not quite the same thing.
Lift is mainly about how far the pump must pull water upward from the source.
Head height describes the resistance the pump must work against, especially when pushing water uphill.
Reviewing choosing a siphon pump for stored water helps evaluate capacity margins for reliable long-duration service.
For a simple rainwater setup, keeping the pump close to the tank and keeping the inlet hose short usually helps.
For example, placing the pump beside an above-ground tank is much easier on the pump than putting it far uphill from the water source.
Long hoses, narrow hoses, fittings, and elevation all reduce real-world flow.
Is It Suitable for Garden Irrigation?
It can move water toward a garden, but a transfer pump is not automatically a complete irrigation pump.
An irrigation system may need a certain combination of:
- flow rate
- water pressure
- runtime
- automatic controls
- dry-run protection
- filtration
A transfer pump may work well for filling watering cans, moving water to another tank, or supplying a simple hose.
A sprinkler system or drip system may have more specific pressure needs. Check the required flow and pressure of the irrigation equipment before choosing the pump.
For a permanent automatic rainwater irrigation system, a purpose-built outdoor pump and controller may make more sense.
Can You Use the DeWalt Pump for Drinking Water?
The DCE050 should not be used as a drinking-water pump.
DeWalt's manual specifically states that water pumped through the DCE050 is not safe for human or animal consumption.
That warning applies even if the water looked clean before entering the pump.
If collected rainwater will be used for drinking, cooking, or other potable uses, the entire system needs to be suitable for that purpose. That can include the collection surface, tank, plumbing, pump, prefiltration, treatment stages, maintenance, current laboratory testing, and applicable local requirements.
A portable transfer pump intended for non-potable water should not be placed in that water path.
Can You Leave It Connected to a Rain Tank?
The DCE050 is better viewed as a portable transfer tool than as a permanent outdoor rainwater pump.
The manual says it is not weatherproof and should not be used under wet conditions. It also says to place the pump on a dry, flat, stable surface.
For a tank that needs a pump available every day in all weather, look for equipment specifically designed for permanent outdoor water-system use.
The DeWalt can make more sense when you want to bring a pump out, transfer water while conditions are dry, disconnect it, and store it afterward.
Is a DeWalt Battery Transfer Pump a Good Fit for a Rainwater System?
It can be a useful option when you already use DeWalt batteries and need to occasionally move clear, non-potable water without mains power.
It is less suitable when you need:
- a pump permanently mounted outdoors
- a submersible tank pump
- automatic pressure for household plumbing
- continuous irrigation service
- dirty-water pumping
- potable-water service
The battery system is convenient, but system compatibility matters more than the battery brand. Check the water quality, hose connections, required lift, discharge height, expected flow, and weather exposure before deciding whether it fits your rainwater setup.
Frequently Asked Questions
Does DeWalt make a cordless water transfer pump?
Yes. DeWalt makes the DCE050 20V MAX Transfer Pump. The DCE050P1 kit includes the pump, a 20V MAX 5Ah battery, and a charger.
What batteries work with the DeWalt transfer pump?
DeWalt lists the pump as compatible with its 20V MAX and FLEXVOLT battery systems.
How many gallons per minute can the DeWalt transfer pump move?
DeWalt rates the DCE050 at up to 10 gallons per minute under its stated test conditions. Hose length, elevation, restrictions, and suction conditions can reduce actual flow.
Can the DeWalt transfer pump pump rainwater?
It can move clear, non-potable water, but the pump itself is not waterproof or weatherproof. It should be kept dry and should not be submerged or operated in wet conditions.
Can I connect a garden hose to the DeWalt transfer pump?
Yes. The DCE050 uses 3/4-inch garden hose thread connections. DeWalt recommends a heavy-duty hose on the suction side so the hose does not collapse.
Can the DeWalt transfer pump be used for drinking water?
No. DeWalt states that water pumped through the DCE050 is not safe for human or animal consumption.
Is the DeWalt transfer pump submersible?
No. The pump must remain outside the water. DeWalt specifically warns not to submerge it.
