SENIX X2 18V batteries offer reliable power in a compact design. Featuring a power level LED display for easy monitoring and a safety Battery Management System for protection, it ensures both performance and safety. Perfect for efficient, uninterrupted work.
Power Level LED Display – Easily check remaining battery life at a glance to plan your work without interruptions.
Compact & Lightweight Design – The battery is easy to handle, store, and swap, reducing fatigue during long tasks.
Advanced Safety BMS – Built-in Battery Management System ensures protection against overcharging, overheating, and short circuits for long-lasting performance.
Voltage
18V
Battery Type
Lithium-ion
Rated Capacity
4Ah / 72Wh
Machine Weight
0.63kg
Series-parallel system
5S2P
Cell Type
18650
The SENIX X2 18V 4.0Ah Battery (Model B40X2) is designed for users who need longer runtime without sacrificing portability. At 0.63 kg, it’s slightly heavier than the 2.0Ah and 2.5Ah models, but it doubles capacity for extended work sessions.
Its LED power level display allows instant charge checks, while the advanced Battery Management System (BMS) ensures safety by protecting against overcharging, overheating, and short circuits. With a 5S2P 18650 lithium-ion cell system, the B40X2 provides 72Wh of energy—making it the go-to choice for heavy-duty applications.
Certified under UN38.3 and UL 2595, this battery meets strict safety and performance standards. Measuring 119.9 × 76.5 × 68.7 mm, it remains compact enough for easy swapping, charging, and storage. Designed for 41°F–104°F charging and best stored between 50°F–80°F, the B40X2 is a rugged, reliable companion for both DIY enthusiasts and professionals.
