High Quality 3.8V 4000mah/15.2Wh UNISTRONG BA4000 Battery For Unistrong G6 g659

Do you want to buy a cheap UNISTRONG BA4000 Compatible battery? We offer you a cheap UNISTRONG BA4000 Compatible battery - an incredibly high quality Compatible battery! All UNISTRONG BA4000 are brand new,1 year Warranty, 100% Guarantee Quality and Fully Test!

✔ Battery for BA4000 Ships to Singapore

Product Overview

This battery is suitable as a replacement battery for Unistrong G6 g659 battery and UNISTRONG BA4000 model.

High capacity UNISTRONG BA4000 battery for longer standby time.

The battery is professionally tested to ensure the best lifespan.

1 year warranty, 30 days money back, 100% brand new!

Battery capacity (mAh/A/W) may be different; the more mAh/A/W it displays, the higher its autonomy.

Safety certified CE / FCC / RoHS.

Key Features

• High‑capacity design with 4000mah/15.2Wh for extended device runtime.
• Stable 3.8V output ensures consistent performance during daily use.
• Built with high‑quality lithium‑ion cells for improved durability and long cycle life.
• Advanced protection system including overcharge, over‑discharge, overheat, and short‑circuit safeguards.
• Optimized for reliable performance in warm and humid environments.
• Lightweight and compact design for easy installation and device compatibility.

Technical Specifications

Model	BA4000
Battery Condition	Brand New Replacement Battery
Item Code	ECN12837_Oth
Category	GPS Device Batteries
Brand	UNISTRONG
Capacity	4000mah/15.2Wh
Voltage	3.8V
Type	Rechargeable Li-ion
Color	Black
Applies to	Unistrong G6 g659
Certification	Passed CE, UL, ROHS, ISO 9001/9002 and GS certification
Service	Buy now, we promise a one-year warranty and 30-day returns

Compatible Models

Replacement Part Numbers:

• BA4000

Compatible Models：

For Unistrong G6 g659

* Please make sure that the replacement battery you are buying is suitable for your device brand and model.

Battery Care & Maintenance

• Store the battery in a cool, dry environment to maintain long‑term performance.
• Avoid exposing the battery to excessive heat or direct sunlight, especially in warm and humid climates.
• Use compatible UNISTRONG chargers or certified charging accessories to ensure safe and efficient charging.
• Avoid frequent full discharges; partial charge cycles help extend overall battery lifespan.
• If the battery will not be used for an extended period, keep it at around 40–60% charge before storage.
• Clean the battery contacts periodically with a dry cloth to maintain stable power delivery.
• Do not puncture, crush, or expose the battery to water or high humidity.

Frequently Asked Questions