Lithium-ion battery for ViVi® helmet

Rechargeable lithium-ion battery specifically designed for the ViVi® helmet. It features a LED light indicator to inform the user of the charge level and has various internal protection mechanisms that help prevent overcharge, over-discharge, and overheating during operation. Additionally, it has several international usage certifications and multiple safety recognitions, making it suitable and reliable for use during surgery.

Features
- Rechargeable lithium-ion battery
- International usage certifications and safety standard certificates
- Smart battery with multiple tools according to the SMBus specification
- LED light charge level indicator included
- Latest generation lithium-ion battery with the highest density on the market
- High-performance discharge
- JEITA charging profile optimization
- Protection against over-discharge, overcharge and overheating during charging or discharging
- Prevention of battery life degradation
- ESD protection up to 8 kV
- SHA-1 cryptosystem to prevent plagiarism

General specifications
- Battery capacity at the time of delivery: 30%
- Compliance certificates: CE / UL2054 / FCC / PSE / KC / Gost / EAC / CQC / RCM / IEC62133 / UN38.3 / RoHS / REACH / BIS / TISI / BSMI
- Charging temperature: 0°C / 45°C
- Discharge temperature: -20°C / 60°C
- Maximum storage temperature: -20ºC/50ºC
- Recommended storage temperature: -20ºC/25ºC

Electrical parameters
- Nominal voltage: 14.40 V
- Nominal capacity: 3450 mA/h
- Initial impedance: <180mΩ @ 1kHz at 25°C
- Maximum charge amperage: 2.415A
- Maximum charge voltage: 16.80 V
- Maximum discharge: 5 A
- Average life: 300 cycles with ≥ 75% initial capacity; CC/CV charge: 1.675 A/16.80 V; discharge: 3.35 A up to 10V @25ºC

Battery dimensions
- Length: 85.1mm ± 0.25
- Width: 77.4mm ± 0.25
- Thickness: 22.4 mm ± 0.25
- Weight: 230 g
- Contacts: +, D, C, T, -

Safety parameters
- Overcharge voltage: 4.23 V
- Over-discharge voltage: 2.50 V
- Overcharge amperage: 3.35 A
- Over-discharge amperage: 5.50 A

Estimated duration
- With ViVi® helmet (Ref. 9428880100): ≥ 6 hours (with maximum ventilation systems)
- With ViVi® LED light helmet (Ref. 9428880130): ≥ 4 hours (LED light on, maximum ventilation systems)

Recharge
- With single-port charger: ≤ 2½ hours