Product Overview
The BTSD-L7402W battery is listed for South S82 S82T K9 R90 R93 GPS GNSS BTNF-L7408W Total Station. Key specifications include 7.4V, 25.16Wh, 3400mAh, Li-ion.
Replacement Battery Specification
| BatteryModel | BTSD-L7402W |
|---|---|
| Capacity | 3400mAh |
| Voltage | 7.4V |
| Battery Type | Li-ion |
| Cell | Made in China, high quality guarantee |
| Color | Black |
| Condition | Replacement Battery (100% Brand New,1-year warranty!) |
Replace Part Numbers
- BTNF-L7408W
Compatible Laptop Models
- For South S82
- S82T K9 R93 GPS GNSS
FAQ
Q: What is the BTSD-L7402W designed to do?
A: The BTSD-L7402W provides replacement power for the listed battery application and is identified for South S82 S82T K9 R90 R93 GPS GNSS BTNF-L7408W Total Station.
Q: What performance should be expected from the BTSD-L7402W?
A: The BTSD-L7402W performance follows the listed 7.4V, 25.16Wh, 3400mAh, Li-ion. Runtime or operating duration varies with equipment load and use.
Q: Which equipment is the BTSD-L7402W compatible with?
A: The BTSD-L7402W is listed for representative models including For South S82; S82T K9 R93 GPS GNSS.
Q: How should the BTSD-L7402W be installed or operated?
A: Switch off the equipment, remove the existing unit, fit the BTSD-L7402W without forcing the connector, then complete an initial charge or function check.
Q: How should the BTSD-L7402W be maintained and troubleshot?
A: Keep the BTSD-L7402W dry and protected from impact or short circuits. If performance changes, stop use and inspect fit, connector and charging behavior.
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.
China warehouse delivery method
Overseas Warehouse Shipping Times & Costs
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.