3.7V 2000mAh 18650 Li-Ion Rechargeable Battery Cell Hongli

The 3.7V 2000mAh 18650 Li-Ion Rechargeable Battery Cell Hongli at 3.7V 2000mAh is a cylindrical lithium-ion cell in the standard 18650 form factor 18mm diameter, 65mm length, the same physical size used across DIY power banks, torch, and custom Li-Ion battery pack construction. At 2000mAh, this cell stores 7.4Wh of energy, roughly 67% more than the 1200mAh Hongli variant in the same physical package. A single cell at 100mA continuous draw runs for approximately 20 hours before the voltage drops to the discharge cutoff.

The 18650 li-ion battery 500 rated cycle life represents a meaningful endurance advantage at one charge cycle per day, 500 cycles covers over a year of daily use before capacity degrades noticeably below the rated 2000mAh. Full charge voltage at 4.2V is the standard Li-Ion per-cell maximum chargers rated to stop at 4.2V per cell are correct for this chemistry and protect the cell from overcharge degradation.

The li-ion rechargeable battery cell connects in series for higher voltage, two cells give 7.4V for 2S packs and three cells give 11.1V for 3S packs but each cell in a multi-cell series pack needs balance charging to maintain equal individual cell voltages across cycles. The 3.7V 18650 battery suits power bank, high-capacity torch, and single or multi-cell robot and instrument power packs. Available on StemVolt. This rechargeable battery  is working on portable Li-Ion power and battery pack construction projects.

Related Product:

• Checkout 3.7V 2000mAh 18650 Li-Ion Rechargeable Cell

Features:

• 2000mAh capacity stores 7.4Wh 67% more energy than 1200mAh 18650 cells
• 500 rated cycles sustains capacity through over a year of daily charge use
• 4.2V full charge matches standard Li-Ion charger termination voltage exactly
• 18 x 65 mm body fits all standard 18650 holders, carriers, and pack slots
• 18650 li-ion rechargeable battery cell hongli with consistent dimensional and capacity specifications

Technical Specifications:

Applications:

• 18650 Li-Ion Rechargeable Battery Cell Hongli have high-capacity DIY power bank with boost module
• Rechargeable battery powers portable ESP32 and Raspberry Pi field sensor node
• Lithium ion battery 2000mAh 2S or 3S pack for robot chassis motor drive
• 3.7V 18650 battery powers high-brightness LED torch in custom handheld lighting project
• Battery price suits bulk purchase for multi-cell battery pack inventory

Package Includes

• 1 × 3.7V 2000mAh 18650 Li-Ion Rechargeable Battery Cell Hongli