20V 5Ah Lithium-ion Battery
B50X2
(5.0)Charger | Battery(Ah) | ||||||
B20X2 | B25X2 | B40X2 | B50X2 | B60X2 | B80X2 | ||
（18650） | （18650） | （18650） | （18650） | （21700） | （21700） | ||
CHX2-L1-EU | 80min | 95min | 160min | 190min | 250min | 330min | |
CHX2 | 65min | 85min | 135min | 160min | 195min | 260min | |
CHQX2 | 35min | 45min | 65min | 85min | 105min | 140min | |
CHQX2-M-EU | 35min | 45min | 50min | 60min | 75min | 100min | |
Charging two batteries at the same time | CHDX2-M-EU | 80min | 95min | 100min | 140min | 155min | 195min |
6.0A Dual-port charger-- Charging only one battery | 40min | 50min | 55min | 70min | 85min | 110min | |
Note: The battery pack charging time error is ±5min | |||||||
KEY FEATURES
Advanced Lithium-ion Cells – 18650 cell technology ensures efficient energy output and long service life.
Smart Battery Management – Integrated protection against overcharge, over-discharge, and overheating.
Compact & Lightweight – Only 0.65 kg, easy to handle and swap during long work sessions.
Universal Compatibility – Works seamlessly with all SENIX 20V Max cordless tools and chargers.
Certified Safety – Complies with UN38.3 transport standards and UL 2595 safety certification.
TECHNICAL PARAMETERS
Model | B50X2 |
Voltage | 20V Max |
Battery Type | Lithium-ion |
Rated Capacity | 5Ah/90Wh |
Machine Weight | 0.65kg |
Series-parallel system | 5S2P |
Cell Type | 18650 |
Recommended Ambient Temperature for Charging | 41°F~104°F(5°C~40°C) |
Optimum Storage Temperature in use | 50°F~80°F(10°C~26°C) |
Certification | UN38.3,UL 2595 |
Machine Size | 119.9*76.5*68.7mm |
SUPPORT
Product Overview
Power your SENIX cordless tools with the SENIX 20V 5Ah Lithium-ion Battery, designed to deliver long-lasting performance, reliable runtime, and maximum efficiency. Featuring advanced 18650 lithium cells in a 5S2P configuration, this 90Wh battery provides strong, consistent output across the entire charge cycle.
With a compact 0.65kg design, the B50X2 combines lightweight portability with robust energy capacity—perfect for both home users and professionals who need sustained power on demanding tasks. Built with intelligent protection circuits and certified to UN38.3 and UL 2595 safety standards, it ensures stable operation, fast recharging, and superior safety under all working conditions.
Usage Scenarios
Powering SENIX 20V cordless tools, such as trimmers, blowers, saws, and inverters
DIY and professional use requiring consistent, portable power
Extended outdoor jobs where charging access is limited
Backup or secondary battery for uninterrupted productivity
Unrecommended Conditions
In extreme temperatures (below 5°C or above 40°C during charging)
Under direct sunlight or near heat sources for prolonged periods
When damaged, deformed, or swollen — discontinue use immediately
With non-SENIX chargers or tools — may reduce lifespan or cause safety issues
Warranty Information
We offer a comprehensive warranty policy tailored to the specific requirements of different countries and regions. Our warranty coverage is designed to ensure customer satisfaction and product reliability across all markets. For detailed information regarding the terms, duration, and service procedures applicable in your location, please get in touch with us directly. Our team will provide you with a complete warranty illustration and support as needed.
FREQUENTLY ASKED QUESTIONS
Q1: Is this battery compatible with all SENIX 20V tools?
A: Yes. The B50X2 is fully compatible with all SENIX 20V Max cordless tools and chargers.
Q2: How long does it take to charge?
A: Depending on the charger model, a full charge typically takes 2–2.5 hours.
Q3: Can I leave the battery in the charger overnight?
A: It’s not recommended. Remove the battery once charging is complete to extend its lifespan.
Q4: What’s the best way to store the battery?
A: Store in a cool, dry place at 10°C–26°C (50°F–80°F) with about 50% charge for optimal longevity.
Q5: Does the battery have built-in protection?
A: Yes. It includes overcharge, overcurrent, and thermal protection for maximum user safety.
