Engineered for battery manufacturers, sourcing teams, OEM/ODM developers, and global distributors.
Selecting the right charger is no longer just about voltage and current. For purchasing managers, engineering teams, and factories building lithium-ion, LiFePO4, lead acid, or NiMH products, the real value lies in the charging algorithm, thermal stability, control precision, and global certification readiness.
Phonix Charger delivers customized charging solutions that combine these elements into one reliable platform, helping customers shorten development time and reduce technical risk.
The Three-Stage Charging Algorithm: Proven, Efficient, and Battery-Friendly
A well-designed charger always begins with a stable charging curve. Across hundreds of OEM/ODM projects, the classic three-stage profile has demonstrated superior compatibility and battery longevity.
Pre-Charge Stage
A gentle 5%–10% current activates over-discharged cells and prepares the pack for safe recovery.
Constant-Current (CC) Stage
A defined current (0.5C–1C depending on chemistry) rapidly restores 70%–80% of capacity.
Constant-Voltage (CV) Stage
Voltage is held at a fixed level while current slowly tapers to the cut-off threshold, ensuring long-term cycle life.
To explore how our customized algorithms are applied across different product lines, visit
👉 custom smart chargers (internal link)
Temperature-Based Control: Designed for Global Operating Environments
Battery chemistry, ambient conditions, and market regions all influence safe charging behaviour. Phonix integrates temperature-based logic proven effective across multiple industries:
- Below 0°C: charging disabled or limited to 0.1C
- 0°C–10°C: reduced rate (0.2C–0.3C)
- 10°C–45°C: normal charging
- ≥ 60°C: charging halted for safety
Temperature data can be supplied by the BMS or by dedicated internal sensors, allowing the charger to adjust dynamically in real time.
To reference global safety guidelines commonly used in our engineering workflows:
👉 IEC Electrical Standards (external link)
👉 UL Global Safety Framework (external link)
STM32-Based Precision Control: Stability That Scales With Your Production
To ensure consistent performance across batches, Phonix uses an STM32-based control architecture with high-speed sampling and closed-loop regulation:
- ADC sampling: 20–40 kHz
- Loop bandwidth: 1–3 kHz
- Current control accuracy: ±1%–2%
- Voltage accuracy: ±0.5%
For OEM, ODM, or factory-side procurement, this ensures stable performance across units, predictable mass-production behaviour, and flexible expansion such as CAN, UART, RS485, BLE, or Wi-Fi monitoring.
Making Customisation Accurate: A Structured Excel Form for Engineering Specs
Custom charger development always begins with correct technical data. To streamline communication between your engineering team and ours, we provide a detailed Charger Custom Excel Form.
This form includes parameters such as:
- Battery chemistry & pack configuration
- Input/output voltage & current
- Required global certifications (UL/CE/RCM/PSE/CB, etc.)
- Cooling method and enclosure style
- BMS communication methods
- Environmental operating range
- Label/OEM/ODM requirements
Please download and complete the Charger Custom Excel Form.
Once you return the filled form, our engineering team will review the specifications and contact you as soon as possible to proceed with the feasibility assessment.
You can also explore more customisable product options via
👉 Phonix Charger product catalogue (internal link)
Why Global Buyers Trust Phonix Charger
- 20+ years specialising exclusively in chargers
- Strong supply-chain control with multi-vendor optimisation
- Experience across lithium-ion, LiFePO4, SLA, and NiMH systems
- Full OEM/ODM capability with rapid sample development
- Comprehensive certification knowledge for global markets
- Engineering-driven workflow with precise production control
We support engineering teams, importers, tool manufacturers, and system integrators aiming for long-term reliability and safe mass production across Europe, North America, Asia, Africa, and Australia.
