Sharp Compatible Battery BT-L11 BT-L11U BT-L12 BT-L12U BT-L22U 3.6V 6800mAh for Medical Equipments

• BMS (Battery Management System) with overcharge, over-discharge, and short circuit/overcurrent protection
• Fireproof and explosion-proof A-grade lithium-ion/polymer battery cells with UL/CE certification
• Lighter weight than original batteries (300g~500g) for improved portability
• Supports 2~4 hours fast charging (with appropriate charger) with ≥500 cycle life (capacity retention ≥80%)
• Operating temperature: 0°C~40°C, storage temperature: -20°C~60°C

• Verify battery voltage (3.6V) and interface compatibility with your Sharp ventilator model
• Fully charge the battery before first use (recommended 4~6 hours initial charge)
• Unplug power adapter to prevent short circuit risks
• Confirm DC plug matches ventilator specifications
• Locate DC power interface on ventilator (typically on back or side)
• Insert DC plug securely without forcing connection
• Power on ventilator and verify normal operation

We provide a 90-day warranty period. Contact us for specific warranty details on different battery models.

Orders ship within 3-5 working days after payment via DHL, FedEx, or UPS. Shipping costs vary by destination. Contact us for specific shipping details.

• Avoid exposure to extreme temperatures and high humidity environments
• Discontinue use immediately if battery overheats
• Prevent metal objects from contacting battery terminals to avoid short circuits
• Regularly inspect for swelling or leakage - discontinue use if abnormalities appear
• Recycle used batteries according to local regulations
• Never exceed rated current and voltage specifications