Introduction
The PowerBox Evo is an extremely compact dual power supply unit featuring 7 channels, regulated output voltage, and telemetry capabilities. Its 7 inputs distribute to 10 outputs, enabling two servos to be controlled in parallel on 3 channels without the need for additional Y-cables. All servo outputs incorporate built-in pulse amplification and protection against servo back currents.
The included PowerBox MicroSwitch reliably and wear-free switches the two electronic switches and is utilized for setting the output voltage and battery type.
The two high-performance voltage regulators provide a standard output of 6.0V, but can be easily switched to 7.4V, 7.8V, or unregulated using the PowerBox MicroSwitch. The milled aluminum heatsink ensures high continuous load capacity.
The PowerBox Evo supports all common telemetry systems: PowerBox, Jeti, Futaba, Multiplex, Graupner, Spektrum, and JR. This allows both battery voltages to be conveniently monitored from the transmitter. Additionally, the charge status of the batteries can be checked at any time via the two 3-color LEDs.
Features
- 7 Channels
- 10 Outputs
- High-performance battery connector with high continuous load capacity
- Consistently double-redundant design of power electronics
- Redundant electronic switch
- 4 selectable output voltages: 6.0V, 7.4V, 7.8V, or unregulated
- Telemetry data for PowerBox P²BUS, Futaba S.BUS2, Jeti Ex-BUS, Spektrum SRXL2, Multiplex M-Link, JR X-BUS, and Graupner HoTT
- Full controllability from the transmitter for PowerBox and Jeti
- Pulse amplification for all 10 outputs
- Voltage display via 3-color LEDs
- Supports 4 battery types: LiPo, LiIon, NiMh/NiCd, LiFe
- Suppression of servo back currents
- Optimized heat dissipation via the milled high-performance heatsink
- Switch housing made of milled and anodized aluminum
- Compact dimensions
1. Installation and Connections
a) Mounting
The Evo is installed using the included 4 screws, rubber grommets, and brass sleeves onto a robust base. The switch is mounted in the fuselage wall. Especially with GRP fuselages, the switch cutout on the inner fuselage wall should be reinforced with wood to isolate the switch from strong vibrations. For scale models, an external switch is often undesirable; for this, the PowerBox MicroMag is available as an alternative. However, for programming the battery type and output voltage, the PowerBox MicroSwitch is required, except when using a PowerBox or Jeti system.
The PowerBox MicroSwitch is connected laterally to the PowerBox Evo at the "Switch" port. In models where strong vibrations can occur, it is strongly recommended to secure the flat ribbon cable at least at one point to prevent the connector from falling off. While this would not affect the switching state of the unit, it would prevent the shutdown process.
b) Receiver
First, plug all servos into the desired channel. The assignment is up to you. For example, input 4 corresponds to output 4. Whether you connect the aileron or throttle servo here is also up to you.
Channels 3, 4, and 5 have two outputs, allowing you to connect two servos in parallel without a Y-cable. However, please note: The PowerBox Evo does not have servo matching; the servos must be mechanically synchronized if they are connected to the same control surface.
Connect the receiver using the seven supplied patch cables. The receiver is powered through these cables. Connect the patch cable for telemetry to the telemetry input on your receiver:
- PowerBox: P²-BUS
- Jeti: EX-BUS
- Futaba: S.BUS2
- Spektrum: SRXL2
- Graupner: HoTT
- Multiplex: Sensor
- JR: Sens
2. Switching On
The function of the push-button switch is the same as with all PowerBox systems: Press the button until the LED starts blinking green rapidly. Release the button briefly and press it again briefly. The LED will show the powered-on state with a steady green light. Follow the same procedure for switching off.
With the PowerBox MicroMag, hold the magnet to the switch until the PowerBox Evo is switched on. As soon as a magnet is detected, the LED turns blue. The end of the switching process is signaled by the LED turning red. Afterwards, the LED shows the powered-on state in green.
3. Setting the Battery Type
To ensure the LED battery indicator functions correctly, you must set the battery type. To do this, first switch on the PowerBox. Then, press and hold the button again. After approximately 5 seconds, the LEDs will turn off, and a sequence of different colors will begin. Each color is assigned to a battery type. Release the button when the color corresponding to your battery type is displayed.
Both LEDs will confirm the setting with a white blink, and the battery type will be saved.
Battery Type Mapping:
[Visual Description: A horizontal bar shows color segments representing battery types: LiPo (green), LiIon (blue), LiFe (purple), NiMh (red).]
Information on LED Display: The display is not linear to the battery voltage. Various common battery types were measured to derive average discharge curves. This discharge curve is used to provide a percentage display.
The LED display has the following meaning for battery content:
[Visual Description: Color segments representing battery levels: Green (80-100%), Yellow (60-80%), Orange (40-60%), Red (20-40%), Dark Red (0-20%).]
PowerBox and Jeti pilots can also perform this setting directly from the transmitter. The setting can be found in the PowerBox EVO Telemetry Menu for PowerBox or in the JetiBox Application for Jeti.
4. Setting the Output Voltage
The PowerBox Evo can be set to four different output voltages: 6.0V for standard servos, 7.4V, 7.8V, or unregulated for HV servos. For the last setting (unregulated), ensure that all connected components are suitable for high voltage.
The advantage of regulating the voltage to 7.4V or 7.8V, instead of simply passing through the battery voltage, is that the high battery voltage present immediately after charging is regulated down. This provides a constant voltage from the start, resulting in more consistent servo speed and servo power.
To change the output voltage, press the button and connect one of the batteries while holding the button. The LED will first light up green, then orange after 3 seconds, violet after 6 seconds, and red after another 9 seconds. Depending on which color you release the button, the output voltage will be set. The assignment of output voltage is as follows:
[Visual Description: A horizontal bar shows color segments representing output voltages: Green (6.0 V), Orange (7.4 V), Purple (7.8 V), Red (unregulated).]
Finally, the LED will blink white to confirm the setting process. Disconnect the battery and repeat the procedure for the second battery connection.
PowerBox and Jeti pilots can also perform this setting directly from the transmitter. The setting can be found in the PowerBox EVO Telemetry Menu for PowerBox or in the JetiBox Application for Jeti.
5. Technical Data
| Operating Voltage: | 4.0V - 9.0V |
| Power Supply: | 2s LiPo, 2s LiIon, 2s LiFePo, 5s NiMH |
| Operating Current Consumption: | 66mA |
| Standby Current Consumption: | 8µA |
| Continuous Current Load Capacity: | 2x10 A (<30s 2x 20A) |
| Dropout Voltage: | 0.3V |
| Output Voltage: | 6.0V, 7.4V, 7.8V, unregulated |
| Channels: | 7 |
| Servo Outputs: | 10 |
| Supported Telemetry Systems: | P²BUS, S.BUS2, EX-Tele, SRXL2, M-Link, HoTT, JR |
| Dimensions: | 89 x 55 x 18 mm |
| Weight: | 69 g |
| Sensor Switch Weight: | 8 g |
| Temperature Range: | -30°C to +105°C |
6. Scope of Delivery
- PowerBox Evo
- MicroSwitch
- 8x Patch cable
- 6x Mounting screws
- 4x Rubber grommets and brass sleeves
- Operating Manual
7. Dimensions
[Visual Description: Technical drawings showing the dimensions of the PowerBox Evo unit. Top view shows overall length 88.3 mm, width 78.8 mm, with mounting hole dimensions. Side views show height 17.7 mm and other component dimensions like 35.50 mm, 15.40 mm, 6.80 mm, 21.40 mm, 13.40 mm.]
8. EU Declaration of Conformity
This device complies with the essential requirements and other relevant provisions of Directives 2011/65/EU + 2015/863/EU (RoHS) and 2014/30/EU (EMC). The EU Declaration of Conformity for the PowerBox Evo can be found at the following link: www.powerbox-systems.com/de/content/zertifikate
9. Service Note
To provide customers with good service, a support forum has been established for all questions concerning our products. This greatly relieves us from having to answer frequently asked questions repeatedly and gives you the opportunity to receive quick help around the clock, even on weekends. The answers are provided by the PowerBox Team, which guarantees the accuracy of the answers.
Please use the support forum before contacting us by phone.
The forum can be found at the following address: www.forum.powerbox-systems.com
[Visual Description: A QR code linking to the support forum.]
10. Warranty Terms
PowerBox-Systems places great importance on the highest quality standards in development and manufacturing, guaranteeing "Made in Germany"!
We therefore grant a warranty of 24 months on the PowerBox Evo from the date of sale. The warranty covers the free repair of proven material defects. We advise that we reserve the right to replace the unit if repair is not economically feasible.
Any repairs carried out by us in our service department do not extend the warranty period.
Improper use, e.g., due to reverse polarity, very strong vibrations, excessive voltage, moisture, fuel, or short circuits, voids warranty claims. This also applies to defects resulting from particularly heavy wear and tear.
We cannot accept liability for transport damage or loss of your shipment. In case of warranty claims, please send the unit along with the proof of purchase and a description of the fault to the following address:
SERVICE ADDRESS
PowerBox-Systems GmbH
Dr.-Friedrich-Drechsler-Str. 35
86609 Donauwörth
Germany
11. Safety Information for Intended Use of PowerBox Systems
a) Intended Use
The PowerBox Evo is exclusively intended for use in remote-controlled model building applications – particularly in the field of model aircraft. It is not intended for manned aviation, safety-critical, or medical applications. Use must be exclusively by qualified persons.
b) General Safety Instructions
- Read the complete operating manual before commissioning.
- Installation and connection must only be performed with the system switched off.
c) Commissioning and Operation
- Perform a full range test before the first flight.
- Check the function of all channels and telemetry data before each use.
- Use only approved batteries and observe the permissible voltage ranges.
- Mount the unit in the model mechanically stress-free, vibration-damped, and with rubber mounts and brass sleeves.
- The use of two receivers is strongly recommended to ensure fail-safe operation. Place receivers as far apart as possible.
- Activate both batteries separately and check voltage levels before each flight.
- Place only in dry environments – never allow contact with water, moisture, or fuel.
- Check all connections, cables, and telemetry data before each flight.
- Never open the device – this will void the warranty.
d) Approval Information
This device complies with the requirements of 2011/65/EU + 2015/863/EU (RoHS) and 2014/30/EU (EMC). When operating in other countries, country-specific approvals and regulations must be observed.
e) Disposal
This product must not be disposed of with household waste. Take it to a designated collection point for proper disposal (observe WEEE Directive).
12. Disclaimer of Liability
Neither adherence to the installation instructions nor the conditions during operation of the PowerBox Evo, nor the maintenance of the entire remote control system, can be monitored by us.
Therefore, we accept no liability for losses, damages, or costs arising from the application and operation of the PowerBox Evo or related in any way. To the extent legally permissible, liability for damages, regardless of the legal grounds, is limited to the invoice amount of the products from our company that are involved in the event.
We wish you great success with your new PowerBox Evo!
Donauwörth, July 2025
