Nihon Kohden NKB-301V Battery Compatible for TEC-7621C 7631C 7700 5521 5531 ECG Machine

Nihon Kohden NKB-301V Battery Compatible for TEC-7621C 7631C 7700 5521 5531 ECG Machine.

• Power off: Turn off the electrocardiograph and unplug the power adapter.
• Remove the old battery: Usually located on the back or side of the device, release the battery compartment by sliding/pressing the clip.
• Install the new battery: Align the contacts and make sure the battery is fully inserted and locked.
• First charge: Fully charge using the original charger (about 3~4 hours) to activate the battery performance.

• 12-lead ECG recording (standard I, II, III, aVR, aVL, aVF, V1-V6)
• LCD display: real-time display of ECG waveform
• Built-in storage: can store multiple copies of ECG data
• Print output: supports thermal printing (some models require external printer)
• Battery power supply: supports mobile use (rechargeable battery)
• PC connection: some models support USB or Bluetooth data transmission

We provide a 90-day warranty period. Contact us for specific warranty details.

Express delivery via DHL, FedEx, UPS. Orders ship within 3-5 working days after payment. Shipping costs vary by destination.

• Unable to charge: Check charger port or battery contacts for oxidation
• Sudden power drop: Battery may be aging (cycle life 300-500 charges) and need replacement