BiXPower MP300-DX90 322Wh Mountable Rechargeable Battery
with Multi-Voltage DC Converter
High-Capacity Portable DC Power with a Convenient Mountable Battery Holder
The BiXPower MP300-DX90 is a
322Wh rechargeable lithium-ion battery system
designed to provide extended DC power for compatible
electronic devices and equipment.
This complete power solution includes a high-capacity
battery pack, a DD90X multi-voltage DC-to-DC
converter, an AC battery charger and
interchangeable power connector tips.
A special feature of the MP300 is its
mountable battery holder with four mounting
holes, allowing the battery to be secured to
a suitable desk, workstation or equipment surface.
Key Features and Benefits
- 322Wh high-capacity battery: Extended power for compatible DC-powered devices.
- Mountable design: Four mounting holes on the bottom holder for secure installation.
- Selectable constant-voltage output: Multiple DC voltages through the included DD90X converter.
- Direct battery output: Approximately 20V to 29.5V DC for devices that accept this voltage range.
- 90W DC converter: Flexible DC power for compatible electronics within the converter's rated capacity.
- 5V USB output: Additional USB power for compatible small electronics.
- Interchangeable connector tips: Helps accommodate different DC power input connectors.
- Rechargeable battery: Includes an AC charger for 100–240V AC power sources.
- Built-in battery protection: Overcharge, over-discharge, overcurrent, cell balancing and temperature protection.
- One-year limited warranty: Coverage for qualifying manufacturing defects.
322Wh High-Capacity Rechargeable Battery
The MP300 provides approximately
322 watt-hours (Wh) of stored energy.
This large capacity makes it suitable for powering
compatible equipment for extended periods when
AC power is unavailable or inconvenient.
The battery uses a nominal 25V-class lithium-ion
battery system. Its direct output voltage changes
as the battery charges and discharges.
When combined with the DD90X converter, the battery
can provide selectable constant-voltage DC power
for devices requiring specific input voltages.
Battery Dimensions and Connections
Dimensions: approximately 268 × 150 × 56mm
(10.6 × 6 × 2.2 inches).
The battery includes an output power switch,
power level indicators, a charging input port
and a DC output cable.
Mountable Battery Holder with Four Mounting Holes
Unlike ordinary portable battery packs, the MP300
features a bottom mounting holder with
four mounting holes.
This allows the battery holder to be attached
to a suitable flat surface for convenient
installation and positioning.
Benefits of the Mountable Design
- Helps keep the battery securely positioned during normal use.
- Convenient for workstations, desks and equipment installations.
- Reduces unwanted battery movement.
- Provides an organized solution for stationary DC power applications.
- Allows convenient access to the battery and power connections when properly positioned.
Mounting reminder: Use suitable mounting
hardware and verify that the mounting surface can
support the battery's weight. Avoid blocking ventilation,
charging ports, switches or cables. The mounting holder
does not imply suitability for vehicle, vibration-intensive
or safety-critical installations without further evaluation.
Compact Battery and DC Converter Combination
The MP300 battery and DD90X converter can be
positioned together for convenient DC power delivery.
Two Ways to Power Your Devices
Option 1: Direct Battery Output
The MP300 battery can supply DC power directly
to compatible equipment through its output cable.
The battery's direct output voltage varies
with its state of charge:
- Fully charged: Approximately 29.5V DC.
- Typical operating voltage: Approximately 24V to 26V DC.
- Low battery cutoff: Approximately 20V DC.
This direct output is not constant voltage.
The voltage gradually decreases as the battery
discharges.
Important: Connect equipment directly
to the battery only if it can safely accept the
complete approximately 20–30V DC input range.
Devices requiring a fixed 12V, 19V or 24V supply
may need the DD90X converter.
Option 2: Constant-Voltage Output Through DD90X
For devices requiring a specific constant DC voltage, connect the battery to the included BiXPower DD90X DC-to-DC converter.
The converter transforms the battery's variable voltage into a selected constant output voltage.
Select the Output Voltage You Need
The DD90X provides these selectable DC output voltages:
- 12V DC
- 15V DC
- 16V DC
- 18.5V DC
- 19.5V DC
- 24V DC
Simply select the required output voltage before connecting your equipment. Always confirm the correct voltage, connector dimensions, polarity and power requirements.
Compatibility reminder: The DD90X has a maximum output rating of 90W. It is not suitable for devices that require more than its rated output power.
DD90X Converter Design and Connections
Additional 5V USB Power
The DD90X also features a 5V USB output for compatible USB-powered electronics. This provides an additional power connection without requiring a separate USB battery.
The USB port is a standard 5V output. USB-C Power Delivery and fast-charging capabilities are not specified for this converter.
Interchangeable DC Connector Tips
The MP300-DX90 package includes interchangeable
DC connector tips for use with compatible
electronic devices.
Different equipment may use different DC
input connector sizes. The included tips
provide additional connection flexibility.
Connector compatibility:
Check the required DC connector size,
polarity and current rating before use.
A physically fitting connector does not
necessarily mean the electrical connection
is compatible.
How to Charge the MP300 Battery
The MP300 package includes a dedicated AC charger
compatible with 100–240V AC
power sources.
- Turn off the battery output and disconnect the load.
- Connect the supplied AC charger to the battery charging port.
- Plug the charger into a compatible AC outlet.
- Allow the battery to charge according to the charger instructions.
- Disconnect the charger after charging is complete.
Charge the battery within the specified
0°C to 45°C temperature range.
Use only a compatible battery charger.
How to Connect the Battery and DD90X Converter
- Check the input voltage and power requirements of your device.
- Select the correct DC output voltage on the DD90X converter.
- Connect the battery output cable to the converter input.
- Choose the correct DC connector tip if needed.
- Connect the converter output to the equipment.
- Turn on the battery and verify normal operation.
Battery Technical Specifications
| Product Model | MP300-DX90 |
|---|
| Battery Type | Rechargeable lithium-ion |
|---|
| Rated Energy Capacity | 322Wh |
|---|
| Nominal Voltage | Approximately 25V DC |
|---|
| Direct Output Voltage | Approximately 20–29.5V DC, variable |
|---|
| Maximum Continuous Discharge Current | 12A |
|---|
| Dimensions | 268 × 150 × 56mm (10.6 × 6 × 2.2 inches) |
|---|
| Weight | Approximately 2.2kg (5 lb) |
|---|
| Mounting | Bottom battery holder with four mounting holes |
|---|
| Charging Temperature | 0°C to 45°C |
|---|
| Discharging Temperature | -20°C to 60°C |
|---|
| Storage Temperature | -20°C to 40°C |
|---|
| Rated Cycle Life | 500 cycles |
|---|
| Battery Protection | Cell balancing, overcharge, over-discharge, overcurrent, temperature and secondary protection |
|---|
| Battery Charger | Included, 100–240V AC input |
|---|
DD90X Converter Specifications
| Converter Model | BiXPower DD90X |
|---|
| Converter Type | DC-to-DC constant-voltage converter |
|---|
| Selectable Output Voltages | 12V, 15V, 16V, 18.5V, 19.5V and 24V DC (20V shown on some versions) |
|---|
| Maximum Output Power | 90W |
|---|
| Additional Output | 5V USB |
|---|
| Connector Options | Interchangeable DC connector tips |
|---|
Package Contents
The standard BiXPower MP300-DX90 package includes:
- 1 × MP300 322Wh rechargeable battery pack with mountable holder
- 1 × Compatible AC battery charger
- 1 × BiXPower DD90X multi-voltage DC converter
- 12 × Interchangeable DC connector tips
- Battery output cable
Typical Applications
The MP300-DX90 is suitable for many types
of compatible DC-powered equipment, including:
- Portable computers and compatible laptops
- DC-powered communication equipment
- Networking and electronic devices
- Portable electronic testing equipment
- Field electronics and monitoring equipment
- Workstation-mounted DC power systems
- Compatible equipment requiring 12V to 24V DC power
Device compatibility must be verified based on
voltage, current, connector, polarity and
power requirements.
Frequently Asked Questions
Does the MP300 provide constant 24V DC?
The battery itself provides variable DC voltage
from approximately 20V to 29.5V.
For constant 24V DC output, use the included
DD90X converter with its 24V setting.
Can I use the battery for 12V devices?
Yes, if the device is compatible with the
DD90X converter's 12V output and its
maximum power rating.
Do not connect a 12V-only device directly
to the battery's higher-voltage output.
Can the battery be mounted on a desk?
Yes. The battery holder has four mounting holes
for attachment to a suitable surface.
Use appropriate mounting hardware and ensure
the installation safely supports the battery.
Can I use the MP300 to power a laptop?
The DD90X converter provides several voltages
commonly used by laptop computers.
Compatibility depends on the laptop's input
voltage, power requirements, connector and
power identification system.
How long can the MP300 power my device?
Runtime depends on the device's power consumption,
battery condition and converter efficiency.
For example, assuming 85% of the rated battery
energy is delivered to the connected equipment:
- 20W load: approximately 13.7 hours
- 40W load: approximately 6.8 hours
- 60W load: approximately 4.6 hours
- 90W load: approximately 3.0 hours
These are theoretical estimates for illustration
and are not guaranteed operating times.
Can I bring the battery on an airplane?
The MP300 has a rated capacity of 322Wh,
which exceeds the usual 160Wh maximum
for passenger-carried lithium-ion batteries.
It is not suitable for ordinary passenger
carry-on or checked baggage.
Does the package include an AC charger?
Yes. A compatible AC battery charger
is included with the standard package.
Safety Information
- Use only compatible battery chargers.
- Do not short-circuit the battery output.
- Do not puncture, crush, disassemble or expose the battery to fire.
- Keep the battery away from excessive moisture and heat.
- Confirm correct voltage and polarity before connecting devices.
- Do not exceed the DD90X converter's rated output power.
- Follow the specified charging, discharging and storage temperature limits.
- Recharge periodically during long-term storage according to battery instructions.
One-Year Limited Warranty
The MP300-DX90 includes a
one-year limited warranty
covering qualifying manufacturing and
quality defects.
Rechargeable batteries gradually lose
capacity through normal use and aging.
Normal capacity reduction is not considered
a manufacturing defect.
Reliable Mountable DC Power from BiXPower
The BiXPower MP300-DX90 322Wh
Rechargeable Battery with DD90X Converter
combines high battery capacity, selectable
constant-voltage DC output and a convenient
mountable battery holder.
It is a practical choice for customers
who need flexible DC power for compatible
electronics, workstations and specialized
equipment.
BiXPower – Professional Portable Power Solutions.
