LITHIUM ION BATTERY NOVKER-400 3.7V/4000mAh 14.8Wh | BT501

🔋 LITHIUM ION BATTERY NOVKER-400 3.7V 4000mAh | BT501
📌 Product Overview
The NOVKER-400 Lithium Ion Battery (BT501) is a high-quality replacement battery designed for selected fiber optic OTDR testing instruments. It delivers stable power output, long working time, and reliable performance for field technicians and engineers.
Ideal for replacing aged or faulty batteries to restore original device performance.
⭐ Key Features
🔋 High Capacity: 4000mAh for extended working hours

⚡ Stable Output: Ensures consistent performance for OTDR testing

🧩 Perfect Fit: Designed to match original battery specifications

🛠️ Reliable & Durable: Long cycle life with safe lithium-ion chemistry

🔄 Easy Replacement: Plug-and-play installation

🔧 Specifications
Battery Type: Lithium-Ion (Li-ion)

Model: NOVKER-400

Item Code: BT501

Voltage: 3.7V

Capacity: 4000mAh

Energy: 14.8Wh

Condition: New

✅ Compatible Models
This battery is suitable / compatible for use with the following OTDR models:
✔ GRANDLINK GLK4500D1

✔ GRANDLINK GLK4500M1

✔ NOVKER NK4000D

✔ NOVKER NK3200D

✔ GRANDLINK GLK3500D

📦 Package Includes
1 × NOVKER-400 Lithium Ion Battery (BT501)

🧑‍🔧 Applications
Fiber optic OTDR testing instruments

Telecom & FTTH maintenance

Field testing & troubleshooting