022-000021-00 11.1V 4400mAh Li-ion Replacement Battery for Bistos BT-770/BT-740/BT-780 Patient Monitor
The 022-000021-00 is an 11.1V 4400mAh Li-ion replacement battery engineered for the Bistos BT-770, BT-740, and BT-780 Multi-Parameter Patient Monitors — advanced bedside monitoring systems manufactured by Bistos Co., Ltd. of Korea and widely deployed in hospitals, clinics, and emergency care units worldwide. Built with high-quality lithium-ion cells in a robust blue casing, this battery delivers reliable backup power for continuous ECG, SpO2, NIBP, respiration, and temperature monitoring during patient transport and AC power outages.
Key Features
- 11.1V 4400mAh Li-ion Power — High-capacity lithium-ion cells provide stable voltage output for accurate multi-parameter monitoring across all vital sign channels
- Medical-Grade Reliability — Built-in smart protection IC guards against overcharge, over-discharge, over-current, and short circuit — critical for continuous patient monitoring environments
- Triple Model Compatibility — Fits Bistos BT-770 (12.1"), BT-740 (8.4"), and BT-780 (15.6") patient monitors with precision-matched connector and housing
- Extended Runtime — 4400mAh capacity supports approximately 5 hours of continuous monitoring operation on a single charge
- Full 1-Year Warranty — Backed by our 30-day money-back guarantee and 1-year replacement warranty against manufacturing defects
Technical Specifications
- Battery Model: 022-000021-00
- Voltage: 11.1V
- Capacity: 4400mAh
- Chemistry: Li-ion (Lithium Ion)
- Color: Blue
- Weight: 284g
- Dimensions: 109*66*18mm
- Cycle Life: 500-1000 cycles
- Warranty: 1 Year
- Condition: Brand New
About the Bistos BT-770/BT-740/BT-780 Patient Monitors
The Bistos BT-770, BT-740, and BT-780 are multi-parameter patient monitors designed for bedside monitoring in hospitals, ICUs, general wards, and emergency departments. The BT-740 features an 8.4" color TFT touchscreen, the BT-770 a 12.1" display, and the BT-780 a 15.6" display. All models monitor ECG, respiration, SpO2, NIBP (non-invasive blood pressure), and temperature, with optional configurations for CO2, IBP, multi-gas, cardiac output, and Masimo SpO2. The internal rechargeable battery enables cordless patient transport between departments and ensures uninterrupted vital sign monitoring during AC power failures.
Battery Care Tips
- Fully charge the battery before first use to calibrate the internal fuel gauge
- Store in a cool, dry environment (15-25°C / 59-77°F) away from direct sunlight
- Avoid complete discharge — recharge when the monitor indicates low battery
- For long-term storage, charge to approximately 50% capacity and recharge every 3 months
- Always power off the patient monitor before removing or installing the battery
Replace Part Numbers
- 022-000021-00
- 20-0200021-00
- 18650-A
Compatible Models
- Bistos BT-770 Patient Monitor (12.1")
- Bistos BT-740 Patient Monitor (8.4")
- Bistos BT-780 Patient Monitor (15.6")
- Bistos BT-770 Multi-Parameter Monitor
- Bistos BT-740 Multi-Parameter Monitor
- Bistos BT-780 Multi-Parameter Monitor
Notice: This is a compatible replacement battery, not an original Bistos product. The Bistos brand name and BT-770/BT-740/BT-780 model designations are used for compatibility reference only. Please verify your device's original battery part number (022-000021-00, 20-0200021-00, or 18650-A) and physical dimensions (109*66*18mm) before purchase to ensure proper fit and electrical compatibility.
Note:
This is not a complete list or inclusion of all compatible laptop models. You can open the back of your laptop to check the original battery model. If you have any compatibility questions, please contact us online.The casing is made of durable materials, the mainboard adopts advanced technology, and the battery core is produced with high-quality raw materials to ensure that it will not be damaged after long-term use.
Our products are equipped with multiple protection technologies such as overvoltage, overcurrent, and overcharge to effectively protect the safety of batteries and equipment.
Shipping Methods
| Shipping Methods | Ship To | Est. Delivery Time | Shipping Cost | Taxes & Fees |
|---|---|---|---|---|
| USPS / DHL | United States | 10-15 business days | Free | Free |
| Canada Post | Canada | 10-15 business days | Free | Free |
| Royal Mail / Yodel | United Kingdom | 15-20 business days | Free | Free |
| DHL | Germany | 15-20 business days | Free | Free |
| La Poste | France | 15-20 business days | Free | Free |
| Correios | Mexico/Spain/IT | 15-25 business days | Free | Free |
| Local Carriers | SE Asia / East Asia | 5-10 business days | Free | Free |
| Local Carriers | Rest of Europe | 20-25 business days | From $5.99 | Free |
| Local Carriers | UAE / Saudi Arabia / Israel | 16-20 business days | From $7.99 | Free |
📦 Shipping & Tracking Information
Looking for faster shipping? We offer local warehousing services. Please visit our "Local Delivery" page for items available for immediate dispatch.
1. How to Track Your Package:
Please choose the tracking link that corresponds to your destination:
- Europe & The Americas: 17track.net/en
- The Middle East: mena56.com
- Asia: 17exp.kingtrans.cn
Need Help?
If you cannot find your package on any of the above websites, please contact us immediately.
📧 Email: sales@batterymall.com / info@batterymall.com
📱 WeChat/WhatsApp: (+86) 198 6775 1872 / (+86) 191 2767 3310
🚚 Estimated Delivery Time
(1) Shipping from China:
- To Asia: 5-20 business days
- To North America: 10-15 business days
- To Europe/South America: 15-20 business days
(2) Shipping from Local Warehouses:
- From US Warehouse: 3-5 business days
- From European Warehouse: 2-10 business days
- From Russian Warehouse: 3-5 business days
Please note: Exact arrival times depend on the specific country and customs processing.
⚠️ Tax & Customs Information:
Global product prices include customs duties (some countries require a tax ID). Please refer to the settlement invoice for specific shipping costs. Special handling is required if your package is inspected.
Payment Methods
Paypal

Payments by PayPal, no PayPal account required. Paypal is safe and free for buyers.
PayPal account: Payment@batterymall.com
Account Name: ShenZhen KingSener Science and Technology Co., Ltd
Credit or debit card
VISA, MasterCard, the United States n Express,Maestro & Laser Card, APPLE Pay,etc.
PayPal never shares your financial information with us.
WeChat Pay
Currently only supports QR code payment. Please contact WeChat customer service and go to WeChat App to scan the QR code to complete the payment.
Google Pay
Pay with Google Pay, which is more convenient and faster.
Apple Pay
If you use an Apple device, you can use Apple Pay to pay, which is more convenient and faster.
Bank Transfer
Q&A
Quick FAQ:Laptop Battery Care & Troubleshooting
- How long does a KingSener battery last?2 to 3 years (approx. 500-800 charge cycles) under normal temperatures.
- Laptop says "Battery Not Detected". How to fix?1. Hard Reset: Unplug AC, remove battery, hold power button for 30 seconds.
2. Clean Contacts: Wipe metal connection pins.
3. Reset Drivers: Uninstall battery drivers in Device Manager, then restart.
4. Update BIOS: Ensure motherboard firmware is up to date. - Can I leave my laptop plugged in 24/7?Yes, the built-in TI chip prevents overcharging. Tip: To prevent long-term cell swelling, unplug and drain the battery to 40% twice a month.
- How do I store a laptop battery long-term?Store it at 50% charge in a cool, dry place. Never store at 0% or 100%. Cycle the battery every 3 months to maintain chemical activity.
-
Are KingSener batteries safe?Yes. All batteries feature built-in IC protection against short-circuits, over-voltage, and overheating. Fully CE, FCC, and RoHS certified.