Five series-connected cells deliver up to 21 V and 45.62 Wh, with passive balancing for consistent cell performance.
12.5–21 V / 2.5 AhPH-PM05 / COMING SOON
One pack.
Many systems.
A compact intelligent energy platform for cordless tools, USB-C devices, field equipment and portable power applications—coming soon from DARC.
PH-PM05 / PRODUCT VIEWDARC / PH-PM05 FILM
Power that follows
the work.
00:54 / PRODUCT FILMSee one intelligent pack connect to power tools, cooling equipment, workshop machinery and portable energy systems.
01 / SYSTEM
Intelligence inside.
Flexibility outside.
PH-PM05 combines a protected 5-cell energy core, accurate battery estimation and bidirectional USB-C power in one portable platform.
Real-time voltage, current and temperature monitoring with overvoltage, undervoltage, overcurrent and short-circuit protection.
MCU + BMS / NTC monitoredCoulomb counting and Kalman filtering work together to provide reliable State-of-Charge information.
Live SoC / cell balancingFast charging and device power through one USB-C interface, with intelligent profiles up to 80 W.
PD3.0 / QC3.0+ / up to 20 V02 / APPLICATIONS
One energy core.
Multiple jobs.

Power-tool compatibility
PH-PM05 connects to compatible cordless tools through an interchangeable adapter, allowing one removable smart battery pack to support different tool interfaces.
PH-PM05 / ADAPTER / CORDLESS TOOL
Rear-mounted portable cooling
A single PH-PM05 pack slides into the fan's rear docking interface to supply cordless power without obstructing the front airflow. The removable format supports fast pack exchange, separate charging and reuse across other compatible applications.

Field equipment
PH-PM05 slides fully into the equipment's dedicated socket, where the docking rails retain the pack and connect power to the machine. The removable pack replaces a fixed internal battery and can be exchanged between jobs to extend operating time.

Multi-pack power station
Four swappable PH-PM05 packs combine inside one portable energy hub. Each pack docks independently and reports its status to the central display, while the integrated UK Type G outlet supplies connected tools, electronics and essential equipment. Individual packs can be exchanged to extend runtime without replacing the complete system.

At-a-glance status
The integrated OLED keeps battery capacity and charging information visible wherever the pack is used.

Scalable power system
The modular architecture scales from four to eight swappable PH-PM05 packs. Each pack docks independently into a shared power system, allowing capacity and operating range to increase without changing the core platform. Pack-level SoC and SoP communication supports status monitoring, coordinated power delivery and individual pack replacement.
4-PACK / 8-PACK / SWAPPABLE DOCKS / UP TO 370 WH03 / INTERFACE
Know the power.
Trust the system.
The 0.96-inch OLED presents clear battery capacity and charging information using the display design shown in the product film.
Battery Status
The primary screen presents remaining battery capacity through a large percentage and segmented charge bar.
128 × 64 PIXELS04 / SPECIFICATIONS
Compact power.
Defined clearly.
Key engineering targets from the PH-PM05 smart battery system explanation.
- Battery type
- 5 cells Li-ion
- Voltage range
- 12.5–21 V
- Max discharge
- 30 A continuous
- Capacity
- 2.5 Ah / 45.62 Wh
- Power rating
- 80 W max
- Voltage
- Up to 20 V
- Current
- Up to 4 A
- Protocols
- PD3.0 / QC3.0+
- Overvoltage
- 4.25 V/cell
- Undervoltage
- 2.5 V/cell
- Short circuit
- 100 A trip
- Temperature
- NTC monitored
- Display
- 0.96-inch OLED
- Resolution
- 128 × 64 pixels
Specifications represent the PH-PM05 concept document and may evolve during detailed engineering and validation.
05 / CAPABILITIES
Ready beyond
the workshop.
Charging and output options extend the same pack into off-grid, mobile and emergency use cases.
01Universal tool adaptersInterchangeable+
Standardized adapter interfaces let one PH-PM05 energy pack connect across compatible tool brands.
- Makita
- DeWalt
- Bosch
- Milwaukee
02USB-C and solar chargingBidirectional+
USB-C PD supports fast charging and device output, while an optional solar interface enables off-grid recharging.
- 80 W USB-C PD
- Bidirectional flow
- Optional solar input
03Accessory power outputHigh current+
Dedicated terminals extend PH-PM05 beyond tools into portable accessories and compact equipment.
- Cooling equipment
- Field equipment
- Portable power systems
DARC / PH-PM05 / COMING SOON
The future of portable power.
Coming soon.
One adaptable smart battery platform for tools, devices and field equipment.
Watch the concept film →