Product Overview

The SENIX X2 18V Lithium-Ion Battery Twin Pack (B25X2) is engineered to keep your tools running longer and more efficiently. With a 2.5Ah (45Wh) capacity, each battery provides dependable runtime without adding unnecessary weight—just 0.395kg per pack. Its 18650 cell design with a 5S1P series-parallel system ensures stable power output, while built-in protections and UL 2595 and UN38.3 certifications guarantee safe operation.

Designed for versatility, these batteries perform optimally in a wide charging range of 41°F–104°F (5°C–40°C) and maintain excellent storage stability at 50°F–80°F (10°C–26°C). Compact at 118.5 × 76.4 × 53.5 mm, the SENIX 18V batteries are easy to carry, swap, and store. Perfect for powering your SENIX cordless lineup, this twin pack keeps you working without interruption, whether in the workshop, garden, or on the jobsite.

Usage Scenarios

Compatible with all SENIX X2 18V and 2X2 36V Cordless tools. 

Unrecommended Conditions

Do not expose the battery to water, heavy rain, or extremely humid environments.

Avoid charging or using the battery outside the recommended range (41°F–104°F / 5°C–40°C).

Do not store in temperatures above 80°F (26°C) or below freezing for long periods.

Not suitable for heavy-duty equipment requiring higher-capacity batteries.

SENIX Warranty at a Glance

Lithium Power Tools: 5 YEARS

Lithium Batteries & Chargers: 3 YEARS

Petrol Products: 2 YEARS (home) / 6 MONTHS (commercial)

AC Corded Products: 2 YEARS

Power Stations: 2 YEARS

Covers defects in materials and workmanship under normal use. Full terms available in the SENIX warranty policy.