Cylindrical Lithium Ion Batteries | Cordless power tools (drills, screwdrivers), DIY/home improvement, professional construction | Voltage: 18V (standard for cordless tools) Capacity: 2.0Ah (Base) ▲ 3.0Ah (Advanced) Certifications: CE (Europe) & KC (South Korea) safety compliance | ▲ Base: 2.0Ah (delivers 45 mins runtime) ▲ Advanced: 3.0Ah (60 mins runtime) High energy density, durable cylindrical cells | Requires tool-specific compatibility Slightly heavier than prismatic designs |
Prismatic Lithium Ion Batteries | Electric vehicles, high-capacity power tools, industrial equipment | Capacity: 5.0Ah+ (e.g., Tesla Powerwall) Weight: 30% lighter than cylindrical designs (ISO 534) | Ultra-high capacity, lightweight, flexible form factors | Fragile casing Higher cost Sensitive to temperature fluctuations |
Nickel-Metal Hydride (NiMH) | Low-drain devices (flashlights), older tool systems | Voltage: 12V (common for legacy tools) Self-discharge rate: 15-20% monthly (IEC 61951) | No "memory effect" Environmentally preferable (recyclable) | Lower energy density (50% of Li-ion) Shorter runtime for high-power tools |
Lead-Acid Batteries | Backup power systems, starter batteries for vehicles | Capacity: 12V/100Ah (typical automotive use) Cost: $0.05/Wh (vs $0.15/Wh for Li-ion) | Inexpensive Tolerates deep discharges | Heavy (5x denser than Li-ion) Short lifespan (200-300 cycles) |
Lithium Iron Phosphate (LiFePO₄) | Industrial equipment, high-temperature applications | Voltage: 20V (Hitachi EBM1830-compatible) Safety: Passes UN 38.3 thermal abuse tests | Inherently safer chemistry 2,000+ charge cycles Operates at -20°C to +75°C | Lower energy density (vs Li-ion) Requires BMS for voltage balancing |
Polymer Lithium Ion (Li-Po) | Drones, RC vehicles, wearable devices | Thickness: 3mm ultra-thin design (ISO 12236) Flexibility: Can be bent up to 90° (ASTM D522) | Ultra-lightweight Customizable shapes High discharge rates | Prone to swelling/capacitor failure Requires protective case Expensive |