LD Series Lithium-Ion Battery Pack Solutions for Power Tools
Comparative Technical Specifications
| Model | LD732746-1S2P | LD904540-2S1P | LD103450-1S3P | LD18650-3S1P |
|---|---|---|---|---|
| Configuration | 1S2P | 2S1P | 1S3P | 3S1P |
| Nominal Voltage (V) | 3.8 | 7.6 | 3.8 | 11.4 |
| Capacity (mAh) | 2,200 | 1,400 | 3,000 | 2,600 |
| Energy (Wh) | 8.36 | 10.6 | 11.4 | 29.64 |
| Max Continuous Load (A) | 2A | 5A | 3A | 10A |
| Dimensions (L×W×H) | 48×27×15mm | 54×45×9mm | 50×34×15mm | 70×20×20mm |
| Cycle Life | 600 cycles* | 500 cycles | 800 cycles | 700 cycles |
| Charge Voltage | 4.35V (±0.05) | 8.7V | 4.35V | 12.6V |
| Protection Features | OCP/OVP/SCP | Full Suite | OCP/OVP | OCP/OVP/OTP |
| Operating Temp | -10°C~60°C | -10°C~60°C | -20°C~60°C | -10°C~55°C |
| Warranty | 12 months | 12 months | 12 months | 12 months |
(OCP=Over-current, OVP=Over-voltage, SCP=Short-circuit, OTP=Over-temperature Protection)
Retains ≥80% capacity after 600 cycles at 1C discharge rate (25°C ambient)
LD732746-1S2P Lithium-ion Battery Pack: High-Performance Power Source for Cordless Tools
Core Technical Features
- Cell Architecture
- 1-series, 2-parallel configuration using premium Li-Ion 14500 cells
- Ultra-low internal resistance (<35mΩ) for efficient high-rate discharge
- Precision spot-welded nickel alloy interconnects
- Safety Assurance
- Tri-protection PCB:
- Overcharge cutoff: 4.4V (±0.05V)
- Over-discharge cutoff: 2.8V (±0.1V)
- Short-circuit response: <0.2ms
- Thermal fuse (85°C cutoff) for over-temperature protection
- Tri-protection PCB:
- Mechanical Design
- High-strength PC+ABS enclosure (UL94 HB rated)
- Vibration-resistant cell mounting structure
- IPX4-rated splash/dust resistance
Validated Performance
- Stress Testing:
- 500+ 1C charge/discharge cycles (ambient 25°C)
- 72-hour thermal cycling (-10°C↔50°C, 3 cycles/day)
- 5G random vibration (10Hz~500Hz, 3-axis)
- Standards Compliance:
- IEC 62133-2:2017 (safety)
- UN 38.3 (transportation)
- EN 50604 (power tool battery compliance)
Application-Specific Engineering
- Tool Compatibility
- Optimized for brushed DC motors (≤100W)
- Supports peak 4A pulse discharge (5-sec duration)
- Integration Support
- Pre-installed JST-PHR2 connector (optional FFC/FPC)
- Embedded NTC thermistor (±1°C accuracy)
- Customizable CAD files for housing design
Competitive Advantages
| Metric | LD732746-1S2P | Industry Average |
|---|---|---|
| Cycle Retention (600) | 82% capacity | 70-75% capacity |
| Charge Time (0-100%) | 1.5hrs (1C) | 2-2.5hrs |
| Shelf Life (25°C) | <5%/year | 8-10%/year |
Service Commitments
- Certified Production
- ISO 9001-certified manufacturing
- Batch-level traceability (lot number + QR code)
- Technical Support
- Free integration guide (compliance checklist, wiring diagrams)
- 12-month limited warranty (defect replacement)
- Custom Solutions
- Voltage/Capacity scaling (2.5Ah–5.0Ah range)
- Custom BMS programming (charge thresholds, load profiles)
Implementation Guidelines
- Installation: Requires minimum 2mm vibration dampening padding
- Charging: Use CC/CV charger (4.35V max, 1C recommended)
- End-of-Life: Capacity drops below 60% of initial rating
Safety Precautions
- Do not disassemble battery casing
- Avoid contact with water or conductive materials
- Charge only with compatible, regulated chargers
Ordering Options
| Packaging Type | MOQ | Lead Time |
|---|---|---|
| Bulk (No Retail) | 300 pcs | 15 days |
| Custom Labeled | 1,000 | 20 days |
| OEM Integration | 5,000 | 30 days |
Certifications
- RoHS 3 (EU 2015/863) compliant
- REACH SVHC <0.1% w/w
- MSDS documentation available
