21V Lithium Battery Charger 1A/2A EU Plug for 18V Power Tools

21V Lithium Battery Charger — Smart, Safe & Efficient Power for Your 18V Tools

Keep your power tools, electric screwdrivers, drills, lawn mowers, and polishing machines running at full capacity with this 21V Lithium Battery Charger. Designed with a fireproof ABS+PC housing, built-in smart IC protection, and a stable low-ripple output, this charger delivers fast, reliable charging while safeguarding your lithium battery pack every time. Made in Mainland China.

Key Features

• Comprehensive Smart Protection: Built-in intelligent IC chip monitors charging in real time — automatically cuts power to prevent overcharge, overheating, overcurrent, and short circuits, extending the service life of your batteries and devices.
• Fireproof & Durable Housing: High-strength flame-retardant ABS+PC composite shell offers scratch resistance, drop resistance, anti-aging properties, and high-temperature tolerance — built to handle tough workshop environments day after day.
• Stable, Efficient Charging Output: High-precision voltage-stabilizing components deliver a constant, low-ripple power output at 21V 1A or 21V 2A, eliminating voltage fluctuations that can damage battery cells and improving overall charging efficiency.
• Heavy-Duty Cable: Pure copper conductive core wrapped in a high-toughness PVC insulation layer resists repeated bending, tangling, and frequent plugging/unplugging — ensuring minimal power loss and reliable current transmission over the long haul.
• Wide Compatibility: Standard EU 2-pin AC input (100–240V) with a universal DC round output interface. No additional adapter needed — compatible with most 18V lithium battery-powered tools, electric toys, surveillance equipment, and small household appliances with matching rated parameters.

Specifications

What's in the Box

• 1 × 21V Lithium Battery Charger (EU Plug)

Looking for more workshop and DIY essentials? Check out the 10pcs 2-Pin Spring Wire Connectors – Quick Splice Lock Terminals, the 10PCS Stainless Steel Self-Tapping Screws M2.2–M4.8 Phillips, and the 10pcs Durable Gold Blade Nut Metal Universal Trimmer Accessories to complete your toolkit.

Important Notes

• Product images are for reference only and may not reflect actual size — please refer to the specifications table above.
• Minor measurement differences may occur due to manual measuring.
• Actual color may vary slightly from photos due to monitor display differences.
• Always verify that your battery pack's rated voltage and connector type match the charger's output before use.

Learn more: EPA guidance on lithium-ion battery handling

Frequently Asked Questions

Q: Is this 21V lithium battery charger compatible with my 18V cordless drill or electric screwdriver?

A: Yes — most 18V lithium battery packs charge to a fully charged terminal voltage of 21V, which is exactly what this charger outputs. As long as your battery pack's connector matches the DC round output interface and the rated voltage/current parameters are compatible, this charger will work. Always double-check the connector size and your battery's rated charge voltage before use.

Q: Does this charger work in countries outside of the EU?

A: The input voltage is universal (100–240V AC), so the charger electronics are compatible worldwide. However, the plug is a standard EU 2-pin type, so you will need a travel plug adapter for use in non-EU countries (e.g., UK, US, Australia).

Q: What safety protections does this lithium battery charger include?

A: This charger features a multi-layer protection system: overcharge protection (automatically stops charging when the battery reaches full capacity), overheat protection, overcurrent protection, and short-circuit protection — all managed by a built-in smart IC chip. The flame-retardant ABS+PC housing adds an additional layer of physical safety in demanding environments.

Q: What is the difference between the 1A and 2A output versions?

A: Both versions output 21V DC. The 1A version charges more slowly and is gentler on the battery, while the 2A version charges at twice the speed — ideal when you need to get back to work quickly. Choose based on your preference for charging speed vs. gentleness on the battery cells.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.