LISHEN18650

The LISHEN 18650 Series Cylindrical Lithium-Ion Bare Cell Lineup delivers proven energy density, outstanding discharge versatility, and dependable cycle longevity for custom battery pack builders, e-mobility integrators, and industrial energy storage systems. Featuring Tianjin Lishen Battery industrial-grade cylindrical cells across popular models—including the ultra-high capacity LR1865HC (3500mAh, 10.5A), high-density LR1865HB (3350mAh, 10.5A), high-drain power cell LR1865LD (2500mAh, 30A), stable electronics cell LR1865SK (2600mAh, 5.2A), and cost-effective LR1865LA (2000mAh, 20A)—these flat-top bare cells provide reliable 3.6V/3.7V nominal platforms and low internal resistance for balanced multi-series and parallel pack construction.

Key Features:

• Tier-1 Industrial Quality: Manufactured by Tianjin Lishen Battery with tight internal resistance sorting and consistent voltage curves across production batches.
• High-Drain & High-Capacity Spectrum: Select from massive 3500mAh capacity cells (LR1865HC) for maximum operating range, or high-drain 30A cells (LR1865LD) for demanding power-tool and motor loads.
• Classic 18650 Form Factor: Industry-standard dimensions (approx. 18.3mm diameter × 65.2mm length) offering versatile mechanical packaging compatibility for modular packs, power stations, and custom enclosures.
• Flat Top Terminal Design: Clean, unraised flat-top positive terminals engineered specifically for manual or automated spot-welding with pure nickel strips.
• Low Internal Resistance: Engineered to minimize heat generation during rapid discharge and charge cycles, significantly extending pack service life.
• Superior Thermal Stability: Premium electrode chemistry ensures efficient heat dissipation and robust cycle longevity under demanding duty cycles.

Specifications & Model Lineup:

• Brand: LISHEN (Tianjin Lishen Battery Co., Ltd.)
• Cell Format: 18650 Cylindrical Bare Cell
• Dimensions: Approx. 18.3 mm (Diameter) × 65.2 mm (Length)
• Positive Terminal: Flat Top (Bare, unprotected cell)
• Nominal Voltage: 3.6V – 3.7V per cell
• Maximum Charge Voltage: 4.20V ± 0.05V per cell
• Discharge Cut-off Voltage: 2.50V per cell
• Protection Circuit: None (Unprotected bare cell)
• Popular Models in Collection:
  • LR1865HC (New): 3500mAh nominal capacity, 10.5A continuous discharge current, flagship high-capacity grey cell.
  • LR1865HB (New): 3350mAh nominal capacity, 10.5A continuous discharge current, high-density energy storage grey cell.
  • LR1865LD (New): 2500mAh nominal capacity, 30A high-drain continuous discharge current, high-output power tool lime green cell.
  • LR1865SK (New): 2600mAh nominal capacity, 5.2A continuous discharge current, stable consumer electronics lime green cell.
  • LR1865LA (Reclaimed Grade-A): 2000mAh nominal capacity, 20A continuous discharge current, high-power grey industrial cell.

Package Options:

• 1 PCS: Single cell option for sampling, bench testing, or single-cell replacement needs.
• 10 PCS: Entry pack for compact DIY power banks, cordless tools, and small portable modules.
• 20 PCS: Ideal quantity for building 10S2P lightweight e-scooter or 4S5P portable power stations.
• 50 PCS: Standard volume bundle for multi-series e-bike batteries and medium energy storage systems.
• 100 PCS: Full factory case for professional pack builders, bulk fleet maintenance, and large-scale parallel battery banks with closely matched factory batch IR.

Safety & Usage Restrictions (Important Bare-Cell Notice):

• Unprotected Bare Cell Warning: These are bare industrial cylindrical cells without built-in protection circuit boards (no integrated PCB/BMS).
• Professional Assembly Only: Strictly intended for qualified technicians and pack assemblers who integrate an appropriate Battery Management System (BMS) with overcharge, over-discharge, over-current, and cell balancing protection.
• Never Carry Loose Cells: Do not carry loose cells in pockets, bags, or toolboxes where contact with keys, coins, or metal items can cause catastrophic short circuits. Always store in non-conductive plastic battery cases.
• Prohibited Consumer Uses: Not for loose consumer use in flashlights, vaping devices, or household appliances lacking dedicated cell containment and BMS protection.
• Charging Protocol: Charge exclusively using dedicated CC/CV lithium-ion smart chargers (0.5C to 1C rate recommended). Never exceed 4.20V per cell and never leave charging batteries unattended.
• Pre-Weld Inspection: Verify equal cell voltages and inspect shrink wrap insulation prior to resistance spot-welding. Never solder directly onto cell terminals with a soldering iron.

Reclaimed Cell Quality Terms:

For reclaimed/refurbished cell models (such as LR1865LA), cells are harvested from unused factory modules, electronically tested, and sorted for Grade-A capacity and internal resistance. We offer a 3-month quality warranty on cell integrity. Builders must verify and balance all cell voltages prior to pack welding.

Recommended Applications:

• Electric Bicycles (E-Bikes), Electric Scooters, and Light Electric Vehicles (LEVs)
• High-Drain Cordless Power Tools, Vacuums, and Garden Equipment
• Custom DIY Multi-Series/Parallel Lithium-Ion Battery Packs
• Off-Grid Solar Energy Storage Systems (ESS) and UPS Backup Power
• Robotics, Automated Guided Vehicles (AGV), and Portable Electronics Stations

Why Choose DXF:

DXF POWER delivers rigorously tested lithium-ion cylindrical cells with strict internal resistance and voltage sorting, ensuring reliable multi-cell pack balancing and secure protective packaging for worldwide delivery.