Weltool INR series Li-ion batteries are original cells without additional protection circuits. When using, please make sure not to over-discharge or over-charge the battery. The INR21-60 is a high-capacity 21700 rechargeable Li-ion battery. This battery is a button top with a battery diameter of 22mm.

IMPORTANT NOTE: These batteries do not fit in the Weltool BB5 extension tube. The will also not fit into a lot of other devices that require 21700 batteries. We always recommend checking compatibility before buying.

Specifications:

• Battery model: INR21-60
• Battery capacity: 6000mAh (measured capacity 5850mAh~6000mAh)
• Internal resistance: ≤25mΩ
• Nominal voltage: 3.60V
• Maximum continuous discharge current at room temperature: 12A (0~35℃)
• Continuous discharge current at low or high temperature: 6A (-25~0℃) or (35~45℃)
• Charger peak charging current: 4.2A (15℃- 45℃)
• Standard charging current: 3A (25℃ ± 2℃)
• Overcharge protection voltage: 4.2±0.05V
• Over-discharge protection voltage: 2.5±0.1V
• After 600 cycles of charge and discharge, the battery still retains 70% capacity
• Charging temperature: +0~+45℃
• Discharging temperature: -20~+60℃
• Battery size:
  • Length - 73±0.2 mm
  • Diameter - 22.0±0.2 mm
• Weight: 73±2g