ETP Battery Inverter: Portable Power for DeWalt 20V MAX Battery Users
Already own compatible 20V tool batteries and need AC power for a jobsite, campsite, RV trip or short outage? The WZRELB ETP is a portable battery power inverter that converts compatible battery power into 120V AC and USB output.
With four battery slots, pure sine wave output, USB-C PD ports, an LCD and an LED work light, the ETP brings useful power options together in a compact unit. It is designed for compatible smaller loads where portable, removable batteries fit the way you work or travel.
Which DeWalt 20V MAX batteries are compatible?
The ETP compatibility list includes DeWalt 20V MAX battery models DCB200, DCB201, DCB203, DCB204, DCB205 and DCB206. Install one to four compatible batteries in the four battery slots. Batteries and a charger are sold separately, so confirm your exact battery model before ordering.
One battery supports up to 250W. With two or more compatible batteries installed, output can reach the selected ETP model's rated continuous capacity, subject to battery condition, discharge capability and the connected load.
ETP series overview
The series includes 500W and 600W rated models. One compatible battery supports up to 250W; two or more batteries can provide up to the rated continuous output of the selected model. Actual output depends on battery condition, discharge capability and the connected load.
ETP portable inverter features
| Feature | ETP Series |
|---|---|
| Battery compatibility | DeWalt 20V MAX models DCB200, DCB201, DCB203, DCB204, DCB205 and DCB206 |
| Battery slots | Four; use one to four batteries |
| Output capacity | Up to 250W with one battery; with two or more, up to the selected model's rated output |
| Available rated models | 500W and 600W continuous-output versions |
| AC and USB output | Two 120V AC outlets, two USB-A ports and two 30W USB-C PD ports |
| Waveform and frequency | Pure sine wave; user-selectable 50Hz / 60Hz |
The actual output depends on battery condition, discharge capability, temperature and the connected load. Check the tool-battery manufacturer's limits and leave room for devices that draw more power at startup.
What does a DeWalt 20V battery inverter do?
If you are searching for a DeWalt portable power station, the ETP is a compact battery inverter compatible with DeWalt 20V MAX batteries; it does not include built-in batteries. It converts DC energy from installed tool batteries into AC power for compatible electronics and also provides USB charging ports, an LCD status display and an LED work light.
When choosing a DeWalt power inverter or DeWalt 20V inverter, check battery compatibility, AC output and continuous wattage. The ETP is compatible with specified DeWalt 20V MAX batteries; it is not affiliated with or endorsed by DeWalt.
If you are searching for a power inverter with battery, check what is included: the ETP uses compatible removable tool batteries, which are sold separately. It is not a battery charger or a 12V car power inverter, and it does not recharge tool batteries. Plan battery capacity and spares separately if you need longer runtime.
Check startup power: Refrigerators, air conditioners, pumps, microwaves and other motor or heating loads may exceed a compact battery inverter's capacity. Check the appliance's starting demand against the inverter rating and confirm the battery can supply the required current.
What can a DeWalt 20V battery inverter power?
For compatible loads, the ETP's two 120V AC outlets can power items such as lights, a router, a TV, a small fan or a compatible small tool. The USB-A and USB-C PD ports can charge phones, tablets and other supported electronics. Add the wattage of devices running at the same time, and check both the inverter limit and each battery's discharge capability.
How long will the batteries run?
The estimates below assume four fully charged 20V batteries of the same capacity and approximately 88% conversion efficiency. Runtime changes with battery age, temperature, discharge limits, the actual load and power used by connected devices.
| Four-battery setup | 20W load (camping light) |
50W load (small fan) |
100W load (TV or similar) |
|---|---|---|---|
| 4 × 20V 4Ah | About 14.1 hours | About 5.6 hours | About 2.8 hours |
| 4 × 20V 5Ah | About 17.6 hours | About 7.0 hours | About 3.5 hours |
| 4 × 20V 6Ah | About 21.1 hours | About 8.4 hours | About 4.2 hours |
These figures are planning estimates, not guaranteed runtimes. For longer use, bring charged spare batteries and rotate them as needed. Inverter wattage describes available output; battery capacity determines stored energy.
Useful features for mobile power
- Six device outputs: two 120V AC outlets, two 5V / 2.5A USB-A ports and two USB-C PD ports rated at 30W each.
- Pure sine wave output: this pure sine wave inverter is designed for compatible electronics that benefit from a clean AC waveform.
- LCD and LED work light: check operating information and choose half-bright, full-bright or flash lighting.
- Protection and cooling: low- and high-voltage, overload, over-current, short-circuit and over-temperature protection with temperature-controlled fan cooling.
Shop the ETP battery inverter series
The ETP series is available in 500W and 600W rated configurations. Confirm the intended load and battery setup on the product page before ordering. DeWalt and 20V MAX are trademarks of their respective owner. WZRELB products are compatible with specified batteries and are not affiliated with, endorsed by or sponsored by DeWalt.
Frequently asked questions
How much output does the ETP support?
One compatible battery supports up to 250W. With two or more batteries, output can reach the selected model's rated continuous capacity. Confirm battery condition and discharge capability for your application.
Which DeWalt 20V MAX battery models are compatible?
The ETP compatibility list includes DCB200, DCB201, DCB203, DCB204, DCB205 and DCB206. Check your exact battery model before ordering. Batteries and charger are sold separately.
How many batteries can I install?
The ETP has four battery slots and accepts one to four compatible batteries. One battery supports up to 250W; two or more can provide up to the selected model's rated continuous output, within battery and load limits.
Does this DeWalt battery inverter include batteries?
No. The inverter is sold without batteries or a battery charger. Confirm compatibility with your battery model before use.
Can the ETP charge my tool batteries?
No. It converts battery DC power into AC and USB output. Use the battery manufacturer's charger to charge tool batteries.
Is the ETP a complete portable power station?
The ETP is a portable power inverter that uses compatible removable tool batteries. It does not include built-in batteries, and runtime depends on the batteries you install.
How long will four 20V 5Ah batteries last?
As a planning estimate, four 20V 5Ah batteries can run a 20W load for about 17.6 hours, a 50W load for about 7 hours or a 100W load for about 3.5 hours. Actual runtime varies with battery condition, temperature, load and conversion losses.
What should I check before connecting an appliance?
Check the combined running wattage, appliance startup demand and the batteries' discharge capability. Motor and compressor loads may require several times their normal power to start.
Can I run a refrigerator or air conditioner?
Do not assume so based on running wattage alone. Motor and compressor appliances can need several times their normal power to start. Check the appliance's startup demand and the battery's discharge capability; a larger inverter may be required.